Resources Catalogue

The Chinese Space Station Telescope (CSST) primary Survey Camera (SC) is designed to conduct large-area imaging sky surveys using a sophisticated seven-band photometric system. The resulting data will provide unprecedented data for studying the structure and stellar populations of the Milky Way. To support the CSST development and scientific projects related to its survey data, we generate the first comprehensive Milky Way stellar mock catalogue for the CSST SC photometric system using the TRILEGAL stellar population synthesis tool. The catalogue includes approximately 12.6 billion stars, covering a wide range of stellar parameters, photometry, astrometry, and kinematics, with magnitude reaching down to g=27.5 mag in the AB magnitude system. The catalogue represents our benchmark understanding of the stellar populations in the Milky Way, enabling a direct comparison with the future CSST survey data.

FAST Scientific Data Release 15

Publish Time: 2023-11-01

DOI: 10.12149/100872

CSTR: 11379.11.100872

According to the FAST data management policy, the data center will publicly disclose scientific observation data from August 1, 2022 to October 31, 2022 on November 1, 2023. The items included during this period are shown in the table below. The observation source table for this period is attached. If you need publicly available observation data, please contact the FAST data center（ fastdc@nao.cas.cn ）.

DESI Legacy Surveys DR10 Tractor Catalog

Publish Time: 2023-10-26

The DESI Legacy Imaging Surveys (http://legacysurvey.org/) are a combination of three public projects (the Dark Energy Camera Legacy Survey, the Beijing–Arizona Sky Survey, and the Mayall z-band Legacy Survey) that will jointly image ≈14,000 sq. deg of the extragalactic sky visible from the northern hemisphere in three optical bands (g, r, and z) using telescopes at the Kitt Peak National Observatory and the Cerro Tololo Inter-American Observatory. The combined survey footprint is split into two contiguous areas by the Galactic plane. The optical imaging is conducted using a unique strategy of dynamically adjusting the exposure times and pointing selection during observing that results in a survey of nearly uniform depth. In addition to calibrated images, the project is delivering a catalog, constructed by using a probabilistic inference-based approach to estimate source shapes and brightnesses. The catalog includes photometry from the grz optical bands and from four mid-infrared bands (at 3.4, 4.6, 12, and 22 μm) observed by the Wide-field Infrared Survey Explorer satellite during its full operational lifetime.

LAMOST Data Release 9 V2.0

Publish Time: 2023-09-28

DOI: 10.12149/100851

CSTR: 11379.11.100851

The 9th LAMOST Spectral Survey Data Release Version 2.0 includes LAMOST mid/low resolution observational spectra and catalog information from October 24, 2011 to June 12, 2021. The low resolution sky survey observed a total of 5533 plates and obtained 10809336 spectra, including 10495781 stellar spectra, 238558 galaxy spectra, 74997 quasar spectra, and corresponding information catalogs. The medium resolution sky survey obtained 1922760 non time domain spectra, 6718023 time domain spectra, and corresponding information catalogs. All data products can be found in http://www.lamost.org/dr9/v2.0/.

Solar Physics Historical Data

Publish Time: 2023-09-01

DOI: 10.12149/100777

CSTR: 11379.11.100777

This project primarily involves the processing of historical solar observation data in China, sourced from multiple domestic solar observation stations. The data exists in various formats such as paper, film, and glass plates, and is primarily scanned and digitized for electronic presentation. The electronic data generated includes: hand-drawn sunspot maps for China from 1925 to 2015, solar eclipse spectroscopic plates from Papua New Guinea in 1983, historical data from the National Astronomical Observatory of China's solar radio flux meter from 1958 to 1994, historical observation data from the National Astronomical Observatory of China's solar radio spectrometer from 1994 to 2014, solar spectrum magnetic field data from Yunnan Observatory from 1976 to 1985, fine structure plates of the sun from Yunnan Observatory from 1984 to 1993, full-disk chromosphere plates from Yunnan Observatory from 1981 to 1994, solar-terrestrial physics data for China from 1971 to 2001, and important solar eruption event data from 2000 to 2014. Some of the data in the project is electronically preserved and has undergone scientific-level data processing to provide data suitable for scientific applications. The standardization of data into scientific-grade data includes: solar magnetic field observation data from Huairou, Beijing from 1987 to 2011, solar velocity field observation data from Huairou, Beijing from 1987 to 2011, and two-dimensional spectroscopic observation data from the solar tower from 1999 to 2015. Throughout the data processing process of the entire project, various data processing software has been developed, and a standardization report for solar physics data has been established. The data processing software includes digitization of solar radio paper tape observation data, software for extracting information from scanned images, software capable of handling multiple data levels, and standardized data processing software. The standardization report for solar physics data is primarily based on international standards combined with specific data processing procedures.

LAMOST Data Release 11 V0

Publish Time: 2023-08-17

DOI: 10.12149/100825

CSTR: 11379.11.100825

The LAMOST Data Release 11 v0 released the spectral data obtained from October 7th 2022 to June 15th 2023, including low resolution spectrum and medium resolution spectrum. 363 plates were observed at low resolution and 444 at medium resolution. A total of 508,699 low-resolution spectra were released, including 491,598 stars, 14,067 galaxies and 3,034 quasars. It also includes 350,978 AFGK star spectral parameter catalogs. 5,761,687 medium-resolution time-domain spectra and 1,627,224 medium-resolution non-time domain spectra, including 414,555 star spectral parameter catalogs were released.

LAMOST Data Release 11 V0 Q3

Publish Time: 2023-08-17

DOI: 10.12149/100802

CSTR: 11379.11.100802

The LAMOST Data Release 11 v0 Q3 released the spectral data obtained from April 1st 2023 to June 15th 2023, including low resolution spectrum and medium resolution spectrum. 35 plates were observed at low resolution and 53 at medium resolution. A total of 44,537 low-resolution spectra were released, including 43,762 stars, 677 galaxies and 98 quasars. It also includes 32,343 AFGK star spectral parameter catalogs. 682,392 medium-resolution time-domain spectra and 179,168 medium-resolution non-time domain spectra, including 43,523 star spectral parameter catalogs were released.

FAST Scientific Data Release 14

Publish Time: 2023-08-01

DOI: 10.12149/100796

CSTR: 11379.11.100796

According to the FAST data management policy, the data center will publish the scientific observation data from May the 1st, 2022 to July the 31th, 2022 on August the 1st, 2023. The items included in this period are shown in the following table. The observation source table for this period is attached. If you need the published observation data, please contact the FAST data center（ fastdc@nao.cas.cn ）Consultation.

Multiband Astronomical Observations and Data Processing Graduate Course Optical Infrared Data Processing Data

Publish Time: 2023-07-10

DOI: 10.12149/100778

CSTR: 11379.11.100778

This data set is the optical infrared data processing data of the multi-band astronomical observation and data processing graduate course of the University of the Chinese Academy of Sciences. At present, it contains the observation data of the 2023 internship course, specifically: 1. The observation target DY Her (Delta Scuti variable star), with coordinates of 16 31 17.95，+11 59 52.5. The observation equipment is Xinglong 60cm telescope, BRV three bands with an observation date of June 17, 2023. 2. Observation target AU CrB (Delta Scuti variable star), coordinates 16 13 31.70，+32 34 42.7. The observation equipment is the Xinglong 1.26m telescope, gri three bands and the observation date is June 17, 2023.

The First LHAASO Catalog of Gamma-Ray Sources

Publish Time: 2023-06-21

DOI: 10.12149/100752

CSTR: 11379.11.100752

We present the first catalog of very-high energy and ultra-high energy γ-ray sources detected by the Large High Altitude Air Shower Observatory (LHAASO), using 508 days of data collected by the Water Cherenkov Detector Array (WCDA) from March 2021 to September 2022 and 933 days of data recorded by the Kilometer Squared 3 Array (KM2A) from January 2020 to September 2022. This catalog represents the most sensitive E > 1 TeV gamma-ray survey of the sky covering declination from −20◦ to 80◦. In total, the catalog contains 90 sources with extended size smaller than 2◦ and with significance of detection at > 5σ. For each source, we provide its position, extension and spectral characteristics. Furthermore, based on our source association criteria, 32 new TeV sources are proposed in this study. Additionally, 43 sources are detected with ultra-high energy (E > 100 TeV) emission at > 4σ significance level.

LAMOST Data Release 11 V0 Q2

Publish Time: 2023-06-13

DOI: 10.12149/100753

CSTR: 11379.11.100753

The LAMOST Data Release 11 v0 Q2 released the spectral data obtained from October 7, 2022 to March 31, 2023, including low resolution spectrum and medium resolution spectrum. 328 plates were observed at low resolution and 391 at medium resolution. A total of 474,162 low-resolution spectra were released, including 447,836 stars, 13,390 galaxies and 2,936 quasars. It also includes 318,635 AFGK star spectral parameter catalogs. 1,448,056 medium-resolution non-time domain spectra, including 371,032 star spectral parameter catalogs, and 5,079,295 medium-resolution time-domain spectra were released.

Burst Optical Observer and Transient Exploring System – 4th Station Raw Data

Publish Time: 2023-06-01

DOI: 10.12149/100747

CSTR: 11379.11.100747

This is the data set which contains the raw data of BOOTES-4 (Burst Optical Observer and Transient Exploring System – 4th Station) Telescope. This telescope is mainly focused on the gamma ray burst and transient following observation, which can also perform the general optical astronomical observation. All the observation data produced by this telescope are saved in FITS files. As this telescope is construct and maintenance by the Yunnan Observatories (YNAO) and the BOOTES group of Institute of Astrophysics of Andalucia (IAA) of Spain, so the observation data just shared between the research teams related to this cooperation project. We hope it can be opened to all researchers in the near future.

BIPM Circular T

Publish Time: 2023-05-10

DOI: 10.12149/100744

CSTR: 11379.11.100744

BIPM Circular T is a monthly publication of the Time Department, source of traceability to Coordinated Universal Time (UTC) for the local realizations UTC(k) maintained by national institutes. Circular T provides the values of the differences [UTC – UTC(k)] every five days, for about 80 institutes regularly contributing clock and clock comparison data to the BIPM. It includes also other information relevant to the computation of these values.

FAST Scientific Data Release 13

Publish Time: 2023-05-01

DOI: 10.12149/100749

CSTR: 11379.11.100749

According to the FAST data management policy, the data center will publish the scientific observation data from Fabuary the 1st, 2022 to April the 30th, 2022 on May the 1st, 2023. The items included in this period are shown in the following table. The observation source table for this period is attached. If you need the published observation data, please contact the FAST data center（ fastdc@nao.cas.cn ）Consultation.

LAMOST Data Release 10 V1.0

Publish Time: 2023-03-30

DOI: 10.12149/100716

CSTR: 11379.11.100716

LAMOST Data Release 10 V1.0 contains LAMOST mid/low resolution observations of the sky and catalog information from October 24, 2011 to June 30, 2022. A total of 5,923 plates were observed during the low resolution sky survey, and 11,817,430 spectra were obtained, including 11,473,644 stellar spectra, 263,444 galactic spectra, and 80,342 quasar spectra; It contains 7,478,650 records of atmospheric parameter information for A/F/G/K stars, 876,134 records of M-type stars and their parameter information, 680,989 records of A-type star parameter information, 17,140 of white dwarf star information, 556 of cataclysmic variable stars, 27,333 of galaxy constellation synthesis information, and 18,706 of quasar characteristic emission line information. A total of 10,486,216 spectra in 1,951 plates were obtained through mid-resolution sky surveys, including 2,211,338 non time domain spectra and 8,274,878 time domain spectra. Medium resolution star parameter catalog information 2,148,470 rows in total, including 1,103,320 rows for non-time domain observations and 1,045,150 rows for time-domain observations.

LAMOST Data Release 11 V0 Q1

Publish Time: 2023-02-23

DOI: 10.12149/100695

CSTR: 11379.11.100695

The LAMOST Data Release 11 v0 Q1 released the spectral data obtained from October 7, 2022 to December 28, 2022, including low resolution spectrum and medium resolution spectrum. 155 plates were observed at low resolution and 188 at medium resolution. A total of 267370 low-resolution spectra were released, including 259890 stars, 6125 galaxies and 1355 quasars. It also includes 189814 AFGK star spectral parameter catalogs. 722994 medium-resolution non-time domain spectra, including 227117 star spectral parameter catalogs, and 2596336 medium-resolution time-domain spectra were released.

AST3-2 SN Survey Data Release

Publish Time: 2023-02-10

DOI: 10.12149/100669

CSTR: 11379.11.100669

The AST3-2 2016 SN survey data observed in SDSS i-band, from March to May, in total of 4.5TB. The data covers 565 survey fields with ~ 2000 square degree. Each field has about 30 obs and covers 4.3 square degree. It contains 22,576 images, catalogue of 565 sky fields, and 7,702,085 light curves. The median limiting magnitude is ~ 17.8mag.

LAMOST Data Release 9 V1.1

Publish Time: 2023-02-02

DOI: 10.12149/100674

CSTR: 11379.11.100674

LAMOST Data Release 9 V1.1 includes spectra and catalogs obtained by LAMOST low/medium resolution survey during October 24th 2011 and June 12th 2021. For the low resolution survey, there are 5,533 plates observed, and 11,211,028 spectra are obtained in total; there are 10,893,354 stellar spectra, 241,454 galaxy spectra, 76,220 quasar spectra. There are seven spectroscopic parameters catalogs, including the LAMOST LRS General Catalog, the LAMOST LRS A, F, G and K Type Star catalog, the LAMOST LRS A Type Star Catalog, the LAMOST LRS M Type Star Catalog, the LAMOST LRS Observed Plate Information Catalog, and the LAMOST LRS Input Catalog respectively. For the medium resolution survey, there are 8,259,362 spectra in 1,529 observation plates, among them 1,846,438 non time-domain spectra, 6,384,475 time-domain spectra. In addition, there are four catalogues: medium resolution general catalog, medium resolution parameter catalog, medium resolution observed plate information catalog, medium resolution multiple epoch catalog and medium resolution input catalog.

FAST Scientific Data Release 12

Publish Time: 2023-02-01

DOI: 10.12149/100693

CSTR: 11379.11.100693

According to the FAST data management policy, the data center will publish the scientific observation data from November 1, 2021 to January 31, 2022 on February 1, 2023. The items included in this period are shown in the following table. The observation source table for this period is attached. If you need the published observation data, please contact the FAST data center（ fastdc@nao.cas.cn ）Consultation.

Uzbekistan Astronomical Digital Plate Data (1st Batch)

Publish Time: 2022-12-31

Astronomical plates are a precious heritage of astronomical observation and research. In recent years, there has been international cooperation between the Plate Digitalization Laboratory of Shanghai Astronomical Observatory and the Ulugh Beg Astronomical Institute in Uzbekistan in the digitization of astronomical plates. The database contains the second batch of digitized images of Uzbekistan's astronomical plates.

Uzbekistan Astronomical Digital Plate Data (2nd Batch)

Publish Time: 2022-12-31

Astronomical plates are a precious heritage of astronomical observation and research. In recent years, there has been international cooperation between the Plate Digitalization Laboratory of Shanghai Astronomical Observatory and the Ulugh Beg Astronomical Institute in Uzbekistan in the digitization of astronomical plates. The database contains the second batch of digitized images of Uzbekistan's astronomical plates, with the observation time spans from 1971 to 2000.

CCSLR Data Release 2

Publish Time: 2022-12-31

CCSLR 2022 observation data, observation period from January 1, 2022 to December 31, 2022. Including geodetic satellite、GNSS satellite and more than 100 satellite projects, a total of 18 observations.

LAMOST Spectra Classification Dataset

Publish Time: 2022-11-09

DOI: 10.12149/100658

CSTR: 11379.11.100658

This dataset contains 583851 processed spectra from LAMOST DR3. The training set and test test both made up of two parts: an index.csv contains a list of spectra id; and a zip file contains interpolated and sampled spectra in <id> .txt. The train_index.csv and test_answer also contains the classification of spectra. All the spectra has the same range of wavelength between 3800Å and 9000Å, with 2600 sampling point.

FAST Scientific Data Release 11

Publish Time: 2022-10-14

DOI: 10.12149/100657

CSTR: 11379.11.100657

According to the FAST data management policy, the eleventh batch of scientific data from FAST was released on November 1, 2022. The publicly available data includes scientific observation data from August 1, 2021 to October 31, 2021, including a table of observation items and sources included during this period. If you need publicly available observation data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）Consultation.

LAMOST Data Release 8 V2.0

Publish Time: 2022-09-30

DOI: 10.12149/100632

CSTR: 11379.11.100632

LAMOST Data Release 8 V2.0 includes spectra and catalogs obtained by LAMOST low/medium resolution survey during October 24th, 2011 and May 27th 2020. For the low resolution survey, there are 10,633,515 spectra obtained totally, including 10,336,752 stellar spectra, 224,752 galaxy spectra, 72,061 quasar spectra, and related catalogs published. For the medium resolution survey, there are totally 1,465,789 coadded spectra obtained by the non time-domain survey, and 4,510,193 single exposure spectra obtained by the time-domain survey, and related catalogs published. All data products are available from the website http://dr8.lamost.org/v2.0/.

Four seasons star chart

Publish Time: 2022-08-24

DOI: 10.12149/100606

CSTR: 11379.11.100606

This set of star charts shows the whole starry skies visible in different seasons in the 40 ° north latitude region. The outer circle of the star map is marked with East, West, North and south directions. The innermost circle is the horizon of the observation site, and the center of the star map is the zenith of the observation site. When using, you can lift the star map so that the directions marked on the map are consistent with the actual directions. Then you can follow the map and learn to identify the constellations step by step starting from recognizing the bright stars. Stars brighter than 4 magnitude and a small number of stars with brightness of 5 magnitude are depicted in the figure. Bright stars are marked with Chinese star names. Some well-known deep space objects are also reflected.

FAST Scientific Data Release 10

Publish Time: 2022-08-01

DOI: 10.12149/100605

CSTR: 11379.11.100605

According to the FAST data management policy, the data center will publicly disclose scientific observation data from May 1, 2021 to July 31, 2021 on August 1, 2022. The project observation project table and source table included during this period are detailed in the observation source table. If you need publicly available observation data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）Consultation.

LAMOST Data Release 10 V0

Publish Time: 2022-07-26

DOI: 10.12149/100594

CSTR: 11379.11.100594

LAMOST Data Release 10 v0 released spectra obtained between 2021.09.01 and 2022.06.30, including 594,239 low resolution spectra observed on 390 plates, there are 568,465 stellar、21,811 galaxy、3,963 QSO. And there is a catalog including spectral parameter of 409,880 AFGK stars. There are 5,482,648 single exposure medium resolution spectra and 1,584,896 coadd medium resolution spectra observed on the 422 plates. And stellar parameter catalog of 457,785 sources are provided using medium spectra.

LAMOST Data Release 10 V0 Q3

Publish Time: 2022-07-26

DOI: 10.12149/100583

CSTR: 11379.11.100583

LAMOST Data Release 10 v0 Q3 released spectra obtained between 2022.04.01 and 2022.06.30, including 143,622 low resolution spectra observed on 86 plates, there are 137,117stellar、5,559 galaxy、946 QSO. And there is a catalog including spectral parameter of 103,169 AFGK stars. There are 1,493,619 single exposure medium resolution spectra and 360,482 coadd medium resolution spectra observed on the 91 plates. And stellar parameter catalog of 104,545 sources are provided using medium spectra.

Gaia Data Release 3

Publish Time: 2022-06-13

Gaia space telescope is a very important project of the European Space Agency and is a follow-up project of the Hipparcos space telescope. It was launched in December 2013, arrived at the second Lagrange point of the Earth Moon system a few weeks later, and began a five-year sky survey mission in mid August 2014. Its main goal is to measure the three-dimensional space and three-dimensional velocity distribution of stars to determine their astrophysical properties, such as surface gravity and effective temperature, to describe and understand the formation, structure， history and evolution of the Milky Way. On 13 June 2022, Gaia Data Release 3(Gaia DR3) is released. The Gaia Early Data Release 3 (Gaia EDR3) released in October 2021 mainly contains the position, magnitude, proper motion and parallax of 1.5 billion stars, as well as the pseudo color information of some stars with poor photometric quality. Gaia DR3 neither contains new astrometry nor new photometric calibrations, thus, the photometry and astrometry data are common for DR3 and EDR3. However, DR3 has added more data on astrophysical parameters, such as spectral related parameter data, variable star list, and data on celestial bodies in the solar system. For the first time, there is data on the source of expansion (such as galaxies and quasars).

LAMOST Data Release 10 V0 Q2

Publish Time: 2022-05-31

DOI: 10.12149/100550

CSTR: 11379.11.100550

LAMOST Data Release 10 v0 Q2 contains spectra obtained between 2022.01.01 and 2022.3.31, including 345,139 low resolution spectra observed on 205 plates, there are 329,701 stellar、13,110 galaxy、2,328 QSO. And there is a catalog including spectral parameter 241,258 AFGK stars. There are 2,092,459 single exposure medium resolution spectra and 603,810 coadded medium resolution spectra observed on the 150 plates.

CCSLR Data Release

Publish Time: 2022-05-30

CCSLR 2021 observation data, observation period from January 1, 2021 to December 31, 2021. Including geodetic satellite, GNSS satellite and more than 100 satellite projects, a total of 18,970 observations.

Map of the surface of the Moon

Publish Time: 2022-05-27

DOI: 10.12149/100549

CSTR: 11379.21.100549

The second edition of ultra-high definition lunar surface map, with 450 million pixels, has 1268 lunar surface land place names marked, including 15 different types of landmarks, covering almost all lunar surface landmarks with observational value that can be seen by amateur telescopes, including 651 Crater, 348 Satellite Feature, 19 Oceanus, 17 Mare, 10 Sinus, 3 Palus, 9 Promontorium, 93 Rima, 8 Vallis, 43 Mons, and 36 Dorsums, 8 Rupes, 9 Catena, 1 Albedo Feature point and 13 Landing Site Names. If you have more opinions on the revision of land place names, please contact Liu Jing of Dongguan Science Museum or the National Astronomical Data Center.

FAST Scientific Data Release 9

Publish Time: 2022-05-01

DOI: 10.12149/100548

CSTR: 11379.11.100548

According to the FAST data management policy, the ninth batch of scientific data from FAST was released on May 1, 2022. The publicly available data includes scientific observation data from February 1, 2021 to April 30, 2021, including the observation project table and observation source table during this period. If you need publicly available observation data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）Consultation.

2MASS All-Sky Data Release

Publish Time: 2022-04-18

The 2MASS All-Sky Data Release contains highly uniform near infrared Catalog and Image data covering 99.998% of the sky derived from observations made by the Survey's 1.3 m telescopes on Mt. Hopkins, Arizona and Cerro Tololo, Chile. The All-Sky Release data products include a Point Source Catalog (PSC) containing positions and photometry for 470,992,970 objects, a Scan Information Table (SCN) containing information common to the 59,731 Survey scans, an Extended Source Catalog (XSC) containing positions, photometry, and basic shape information for 1,647,599 spatially extended sources, most of which are galaxies, and an Image Atlas containing over 4,121,439 J, H, and Ks FITS images covering the sky. This mirror data set contains the Point Source Catalog, the Scan Information Table, and the Extended Source Catalog. The Atlas Images are not contained here, but are available via on-line the services of the Infrared Science Archive. Other details are in the readme files under the data download link.

LAMOST Data Release 9 V1.0

Publish Time: 2022-03-31

DOI: 10.12149/100529

CSTR: 11379.11.100529

LAMOST Data Release 9 V1.0 includes spectra and catalogs obtained by LAMOST low/medium resolution survey during October 24th 2011 and June 12th 2021. For the low resolution survey, there are 5,533 plates observed, and 11,226,252 spectra are obtained in total; there are 10,907,516 stellar spectra, 242,569 galaxy spectra, 76,167 quasar spectra. For the medium resolution survey, there are 8,226,434 spectra in 1,529 observation plates, among them 1,841,959 non time-domain spectra, 6,384,475 time-domain spectra. In addition, there are dozens of catalogs list spectral parameters for the low/medium resolution survey respectively.

Atlas of remote sensing images of Jilin-1 of world-famous observatories

Publish Time: 2022-03-26

DOI: 10.12149/100528

CSTR: 11379.21.100528

Atlas of remote sensing images of Jilin-1 of world-famous observatories comprises 21 high resolution remote sensing images of the world-famous observatories taken by Jinlin-1 satellite when observing the Earth. Here are Xinglong Observation Site and Five-hundred-meter Aperture Spherical Radio Telescope in China; Nobeyama Radio Observatory NRO in Japan; RATAN-600 Radio Telescope in Russia; Effelsberg Radio Telescope in Germany; Royal Greenwich Observatory and Lovell Telescope in the United Kingdom; Gran Telescopio Canarias in Spain; Mauna Kea Observatory, Apache Point Observatory, Kitt Peak National Observatory, Laser Interferometer Gravitational-Wave Observatory, Arecibo Observator and Green Bank Telescope in the America. Very Large Array, European Extremely Large Telescope and Atacama Large Millimeter/submillimeter Array in Chille; Parkes Observatory in Australia; South African Astronomical Observatory; Square Kilometre Array(SKA) in Australia and South Africa. It is published by the Changguang Sateliite Technology Co. Ltd.

LAMOST Data Release 10 V0 Q1

Publish Time: 2022-02-28

DOI: 10.12149/100517

CSTR: 11379.11.100517

LAMOST Data Release 10 v0 Q1 contains spectra obtained between 2021.01.01 and 2021.12.31, including 87,632 low resolution spectra observed on 99 plates, 2,256,570 single exposure medium resolution spectra and 620,604 coadded medium resolution spectra observed on the 181 plates.

LAMOST Data Release 8 V1.1

Publish Time: 2022-02-28

DOI: 10.12149/100498

CSTR: 11379.11.100498

LAMOST Data Release 8 V1.1 includes spectra and catalogs obtained by LAMOST low/medium resolution survey during October 24th 2011 and May 25th 2020. For the low resolution survey, there are 5,207 plates observed, 10,351,254 stellar spectra, 225,475 galaxy spectra, 72,010 quasar spectra and 278,766 unknown object spectra. For the medium resolution survey, there are 5,975,982 spectra, among them 1,465,798 non time-domain spectra, 4,510,193 time-domain spectra. In addition, there are dozens of catalogs list spectral parameters for the low/medium resolution survey respectively.

FAST Scientific Data Release 8

Publish Time: 2022-02-01

DOI: 10.12149/100497

CSTR: 11379.11.100497

According to the FAST data management policy, the eighth batch of scientific data from FAST was released on February 1, 2022. The publicly available data is scientific observation data from November 1, 2020 to January 31, 2021. The list of project observation items and sources included during this period is detailed in the observation source table. If you need publicly available observation data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）Consultation.

Database of Cosmological Simulations

Publish Time: 2021-12-31

Focus on both black hole activity, and formation and evolution of galaxies, with the aim of creating a large data library that covers numerical simulation results, ranging from the small black hole accretion disk scale, up to the large scale of galaxy and galaxy cluster.

FAST Scientific Data Release 7

Publish Time: 2021-11-01

DOI: 10.12149/100496

CSTR: 11379.11.100496

According to the FAST data management policy, the seventh batch of scientific data from FAST was released on November 1, 2021. The publicly available data includes scientific observation data from August 1, 2020 to October 31, 2020, including a table of observation items and sources during this period. If you need publicly available observation data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）Consultation.

LAMOST Data Release 7 V2.0

Publish Time: 2021-09-30

DOI: 10.12149/100449

CSTR: 11379.11.100449

LAMOST Data Release 7 V2.0 includes spectra and catalogs obtained by LAMOST low/medium resolution survey during October 24th, 2011 and June 8th 2019. For the low resolution survey, there are 10,431,197 spectra obtained totally, including 9,846,793 stellar spectra, 198,272 galaxy spectra, 66,612 quasar spectra, and 319,520 unknown object spectra, and related catalogs published. For the medium resolution survey, there are totally 988,188 coadded spectra obtained by the non time-domain survey, and 2,828,655 single exposure spectra obtained by the time-domain survey, and related catalogs published. All data products are available from the website http://dr7.lamost.org/v2.0/.

LAMOST Data Release 9 V0

Publish Time: 2021-08-15

DOI: 10.12149/100436

CSTR: 11379.11.100436

LAMOST Data Release 9, V0, contains spectra and catalogs obtained by LAMOST survey during September 18th, 2020 and June 14th, 2021, including Low Resolution Survey and Medium Resolution Survey. For the Low Resolution Survey, there are 326 plates observed during this period, including 539,137 spectra totally, with 492,068 star spectra (with SNR of g/r band greater than 10 spectra 468,703), 15,801 galaxy spectra, 3582 quasar spectra, 27,686 unknown object spectra respectively, and related catalogs. For the Medium Resolution survey, there are 440 plates observed during this period, including 6,054,085 single-epoch spectra and 1,724,868 co-added spectra, among them 2,846,395 and 1,050,637 spectra with SN greater than 10, and stellar parameter information for 446,907 co-added spectra.

LAMOST Data Release 9 V0 Q3

Publish Time: 2021-08-15

DOI: 10.12149/100425

CSTR: 11379.11.100425

LAMOST Data Release 9 V0 Q3, contains spectra and catalogs obtained by LAMOST survey during April 1st and June 30th, 2021, including Low Resolution Survey and Medium Resolution Survey. For the Low Resolution survey, there are 57 plates observed during this period, including 86,793 spectra totally, with 76,481 star spectra (with SNR of g/r band greater than 10 spectra 72,007), 3387 galaxy spectra, 927 quasar spectra, 5998 unknown object spectra respectively, and related catalogs. For the Medium Resolution survey, there are 59 plates observed during this period, including 829,709 single-epoch spectra and 238,064 co-added spectra, among them 355,628 and 130,970 spectra with SN greater than 10, and stellar parameter information for 59,046 co-added spectra.

FAST Scientific Data Release 6

Publish Time: 2021-08-01

DOI: 10.12149/100447

CSTR: 11379.11.100447

M subdwarf catalog

Publish Time: 2021-06-28

DOI: 10.12149/100417

CSTR: 11379.11.100417

Applying the revised M subdwarf classification criteria defined in Zhang et al to LAMOST DR7, combining the M subdwarf sample from Savcheva et al, a new M subdwarf sample containing 3131 objects with available atmospheric parameters was constructed for further study.

The First Data Release of LAMOST Low Resolution Single Epoch Spectra

Publish Time: 2021-06-01

DOI: 10.12149/100448

CSTR: 11379.11.100448

LAMOST Data Release 5, covering ∼17,000 sq. deg from −10 to 80 deg in declination, contains 9 millions co-added low resolution spectra of celestial objects, each spectrum combined from repeat exposure of two to tens of times during Oct 2011 to Jun 2017. In this data release, the spectra of individual exposures for all the objects in LAMOST Data Release 5 are presented. For each spectrum, equivalent width of 60 lines from 11 different elements are calculated with a new method combining the actual line core and fitted line wings. For stars earlier than F type, the Balmer lines are fitted with both emission and absorption profiles once two components are detected. Radial velocity of each individual exposure is measured by minimizing χ2 between the spectrum and its best template. Database for equivalent widths of spectral lines and radial velocities of individual spectra are available online. For stars observed in the same day and with signal-to-noise ratio higher than 20, the radial velocity uncertainty is below 5km/s, and increase to 10km/s for stars observed in different nights.

LAMOST Data Release 9 V0 Q2

Publish Time: 2021-06-01

DOI: 10.12149/100401

CSTR: 11379.11.100401

LAMOST Data Release 9 V0 Q2, contains spectra and catalogs obtained by LAMOST survey during January 1st and March 31st 2021, including Low Resolution Survey and Medium Resolution Survey. For the Low Resolution survey, there are 92 plates observed during this period, including 143,479 spectra totally, with 130,716 star spectra, 4159 galaxy spectra, 500 quasar spectra, 8104 unknown object spectra respectively, and related catalogs. For the Medium Resolution survey, there are 162 plates observed during this period, including 2,376,222 single-epoch spectra and 672,340 co-added spectra, among them 942,659 and 356,977 spectra with SN greater than 10, and related catalogs.

FAST Scientific Data Release 5

Publish Time: 2021-05-01

DOI: 10.12149/100400

CSTR: 11379.11.100400

According to the FAST data management policy, the fifth batch of scientific data from FAST was released on May 1, 2021. The released data includes scientific observation data from February 1, 2020 to April 30, 2020. The project information included during this period is detailed in the observation project table, and the source table is detailed in the observation source table. To obtain publicly available data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）.

LAMOST Data Release 7 V1.3

Publish Time: 2021-04-20

DOI: 10.12149/100381

CSTR: 11379.11.100381

LAMOST Data Release 7 V1.3 includes spectra and catalogs obtained by LAMOST low/medium resolution survey during October 24th 2011 and June 8th 2019. For the low resolution survey, there are 10,640,255 spectra obtained totally, including 9,881,260 stellar spectra, 198,393 galaxy spectra, 66,406 quasar spectra, and 494,196 unknown object spectra, and related catalogs published. For the medium resolution survey, there are totally 992,669 coadded spectra obtained by the non time-domain survey, and 2,861,575 single exposure spectra obtained by the time-domain survey, and related catalogs published. All data products are available from the website http://dr7.lamost.org/v1.3/.

LAMOST Data Release 8 V1.0

Publish Time: 2021-03-31

DOI: 10.12149/100361

CSTR: 11379.11.100361

LAMOST Data Release 8 V1.0 includes spectra and catalogs obtained by LAMOST low/medium resolution survey during October 24th 2011 and May 25th 2020. For the low resolution survey, there are 5,207 plates observed, 10,388,423 stellar spectra, 219,776 galaxy spectra, 71,786 quasar spectra and 534,091 unknown object spectra. For the medium resolution survey, there are 6,038,218 spectra, among them 1,479,127 non time-domain spectra, 4,599,091 time-domain spectra. In addition, there are dozens of catalogs list spectral parameters for the low/medium resolution survey respectively.

LAMOST Data Release 9 V0 Q1

Publish Time: 2021-02-22

DOI: 10.12149/100322

CSTR: 11379.11.100322

LAMOST Data Release 9 v0 Q1 contains spectra obtained between 2020.09.18 and 2020.12.31, including 308,865 low resolution spectra, 197,594 single exposure spectra and 809,539 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey.

FAST Scientific Data Release 4

Publish Time: 2021-02-01

DOI: 10.12149/100379

CSTR: 11379.11.100379

According to the FAST data management policy, the fourth batch of scientific data from FAST was released on February 1, 2021. The released data includes scientific observation data from November 1, 2019 to January 31, 2020. The project information included during this period is detailed in the observation project table, and the source table is detailed in the observation source table. To obtain publicly available data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）

China Astronomical Plates Data Release 1

Publish Time: 2021-01-29

DOI: 10.12149/100321

CSTR: 11379.11.100321

Astronomical observation films are a precious heritage of astronomical observation research. With the support of the Special Key Project of the Ministry of Science and Technology on Basic Work of Science and Technology, the Shanghai Film Digitalization Laboratory completed the scanning and archiving of 29314 films in 2018. On this basis, the research team of the Shanghai Observatory conducted further high-precision astrometric calibration work on the digitized astronomical film, converting the initial version of the digital film into standard fits format astronomical digital images to meet the research needs of relevant professional astronomers. This data release includes 6615 high-quality astronomical digital films, with the main observation targets being extrasolar celestial bodies. After calculation, the celestial measurement accuracy reached 0.2 ". This batch of data includes observation data from multiple telescopes at five Chinese observatories, including the National Astronomical Observatory, Shanghai Astronomical Observatory, Purple Mountain Astronomical Observatory, Yunnan Astronomical Observatory, and Qingdao Astronomical Observatory, spanning from 1904 to 1998.

Spectral line database of Tianma RT

Publish Time: 2020-12-31

The data of spectral line observation of Tianma radio telescope.

LAMOST Data Release 7 V1.2

Publish Time: 2020-12-28

DOI: 10.12149/100288

CSTR: 11379.11.100288

The LAMOST seventh Data Release V1.2 contains low resolution spectra obtained from October 24th 2011 to June 18th 2019, and medium resolution spectra obtained from September 2017 to June 2019. DR7v1.2 includes 4, 922 low resolution observation plates and 679 medium resolution observation plates. There are total 10,599,979 low resolution spectra, among them 8,819,957 with S/N> 10. There are 1.01 million non-time domain medium resolution spectral data, among them 670 thousands of spectra with S/N>10; and 2.87 million time domain medium resolution spectra, among them 1.60 million spectra with S/N>10. In addition, it also includes 10 low/medium resolution catalogs related with observations and parameters.

GAIA EDR3

Publish Time: 2020-12-04

Gaia relies on the proven principles of ESA's Hipparcos mission to help solve one of the most difficult yet deeply fundamental challenges in modern astronomy: the creation of an extraordinarily precise three-dimensional map of about one billion stars throughout our Galaxy and beyond. This massive stellar census provides the basic observational data to tackle an enormous range of important problems related to the origin, structure, and evolutionary history of our Galaxy. The Gaia mission delivers an astronomical catalogue and data archive of unprecedented scope, accuracy and completeness. The Gaia satellite was launched at the end of 2013, this early third data release is based on observations spanning a period of 34 months (or 668 days). Gaia EDR3 represents a significant advance over Gaia DR2, with parallax precisions increased by 30 per cent, proper motion precisions increased by a factor of 2, and the systematic errors in the astrometry suppressed by 30–40% for the parallaxes and by a factor ∼2.5 for the proper motions. The photometry also features increased precision, but above all much better homogeneity across colour, magnitude, and celestial position. More information is available at https://www.cosmos.esa.int/web/gaia/dr3.

FAST Scientific Data Release 3

Publish Time: 2020-11-05

DOI: 10.12149/100378

CSTR: 11379.11.100378

According to the FAST data management policy, the third batch of scientific data from FAST was released on November 5, 2020. The released data includes scientific observation data from August 1, 2019 to October 31, 2019, including observation project tables and observation source tables during this period. To obtain publicly available data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）.

LAMOST Data Release 6 V2

Publish Time: 2020-10-20

DOI: 10.12149/100273

CSTR: 11379.11.100273

LAMOST Data Release 6 v2 contains totally obtain 9,911,337 spectra obtained from pilot survey which was launched in October 2011 and ended in June 2012, and the first six years of regular survey which was initiated on September 2012.

Recommended Chinese Names of Mars Features（2nd release）

Publish Time: 2020-08-25

DOI: 10.12149/80055

CSTR: 11379.11.80055

LAMOST Data Release 8 V0

Publish Time: 2020-08-11

DOI: 10.12149/100264

CSTR: 11379.11.100264

LAMOST Data Release 8 v0 contains spectra obtained between 2020.1.1 and 2020.3.31, including 230,469 low resolution spectra, 144,193 single exposure spectra and 791,982 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey.

LAMOST Data Release 8 V0 Q3

Publish Time: 2020-08-11

DOI: 10.12149/100255

CSTR: 11379.11.100255

LAMOST Data Release 8 v0 Q3 contains spectra obtained between 2020.1.1 and 2020.3.31, including 230,469 low resolution spectra, 144,193 single exposure spectra and 791,982 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey.

FAST Scientific Data Release 2

Publish Time: 2020-08-05

DOI: 10.12149/100377

CSTR: 11379.11.100377

According to the FAST data management policy, the second batch of scientific data from FAST was released on August 5, 2020. The data released this time contained scientific observation data from May 1 to July 31, 2019. The project information included during this period is detailed in the observation project table, and the source table is detailed in the observation source table. To obtain publicly available data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）.

Recommended Chinese Names of Mars Features

Publish Time: 2020-07-27

DOI: 10.12149/80027

CSTR: 11379.99.80027

This translation includes the names of 811 Martian terrain features published to date (as of July 15, 2020) by the International Astronomical Union (IAU). It includes: the official names, the official English description of the IAU, the Chinese translation of the names, and a description of the Chinese translations. It provides references for relevant research and science education activities.

The Extended Gaia–PS1–SDSS (GPS1+) Proper Motion Catalog

Publish Time: 2020-06-30

DOI: 10.12149/100424

CSTR: 11379.11.100424

The Gaia + PanSTARRS1 (PS1) + Sloan Digital Sky Survey (SDSS) + Two Micron All-Sky Survey (2MASS) (GPS1) catalog was released in 2017. It delivered precise proper motions for around 350 million sources down to a magnitude of r ~ 20 mag. In this release, the author presents GPS1+, the extension GPS1 catalog down to r ~ 22.5 mag, based on Gaia data release 2 (DR2), PS1, SDSS, and 2MASS astrometry. GPS1+ totally provides proper motions for ∼400 million sources with a characteristic systematic error of less than 0.1 mas yr−1. This catalog is divided into two subsamples, i.e., the primary and secondary parts. The primary ∼264 million sources have either or both Gaia and SDSS astrometry, with a typical precision of 2.0–5.0 mas yr−1. The secondary ∼136 million sources only have PS1 astrometry, where the average precision is worse than 15.0 mas yr−1. All the proper motions have been validated using QSOs and the existing Gaia proper motions.

LAMOST Data Release 7 V1.1

Publish Time: 2020-06-16

DOI: 10.12149/100190

CSTR: 11379.11.100190

LAMOST Data Release 7 v1.1 contains totally obtain 10602012 spectra obtained from pilot survey which was launched in October 2011 and ended in June 2012, and the first seven years of regular survey which was initiated on September 2012.

LAMOST Data Release 6 V1.1

Publish Time: 2020-06-16

DOI: 10.12149/100179

CSTR: 11379.11.100179

LAMOST Data Release 6 v1.1 contains totally obtain 9,912,702 spectra obtained from pilot survey which was launched in October 2011 and ended in June 2012, and the first six years of regular survey which was initiated on September 2012.

LAMOST Data Release 8 V0 Q2

Publish Time: 2020-05-20

DOI: 10.12149/100201

CSTR: 11379.11.100201

LAMOST Data Release 8 v0 Q2 contains spectra obtained between 2020.1.1 and 2020.3.31, including 230,469 low resolution spectra, 144,193 single exposure spectra and 791,982 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey.

Eclipse Calculator

Publish Time: 2020-05-16

DOI: 10.12149/80001

CSTR: 11379.21.80001

FAST Scientific Data Release 1

Publish Time: 2020-05-01

DOI: 10.12149/100376

CSTR: 11379.11.100376

According to the FAST data management policy, the first batch of scientific data for FAST was publicly available on May 1, 2020. The publicly available data contains the scientific observation data from April 1 to April 30, 2019. The project information included during this period is detailed in the observation project table, and the source table is detailed in the observation source table. To obtain publicly available data, please contact the FAST Data Center（ fastdc@nao.cas.cn ）.

LAMOST Data Release 7 V1

Publish Time: 2020-04-01

DOI: 10.12149/100167

CSTR: 11379.11.100167

LAMOST Data Release 7 v1 contains totally obtain 10608416 spectra obtained from pilot survey which was launched in October 2011 and ended in June 2012, and the first seven years of regular survey which was initiated on September 2012. It also provides 1010666 single exposure spectra and 2878717 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey between September 2017 and June 2019.

LAMOST Data Release 8 V0 Q1

Publish Time: 2020-02-20

DOI: 10.12149/100158

CSTR: 11379.11.100158

LAMOST Data Release 8 v0 contains spectra obtained between 2019.10.23 and 2019.12.31, including 165,997 low resolution spectra, 1,095,21 single exposure spectra and 638,759 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey.

DESI Legacy Surveys DR9 Tractor Catalog

Publish Time: 2020-01-31

The DESI Legacy Imaging Surveys (http://legacysurvey.org/) are a combination of three public projects (the Dark Energy Camera Legacy Survey, the Beijing–Arizona Sky Survey, and the Mayall z-band Legacy Survey) that will jointly image ≈14,000 sq. deg of the extragalactic sky visible from the northern hemisphere in three optical bands (g, r, and z) using telescopes at the Kitt Peak National Observatory and the Cerro Tololo Inter-American Observatory. The combined survey footprint is split into two contiguous areas by the Galactic plane. The optical imaging is conducted using a unique strategy of dynamically adjusting the exposure times and pointing selection during observing that results in a survey of nearly uniform depth. In addition to calibrated images, the project is delivering a catalog, constructed by using a probabilistic inference-based approach to estimate source shapes and brightnesses. The catalog includes photometry from the grz optical bands and from four mid-infrared bands (at 3.4, 4.6, 12, and 22 μm) observed by the Wide-field Infrared Survey Explorer satellite during its full operational lifetime.

Precursor—Guo Shoujing’s Astronomical Achievements

Publish Time: 2019-10-10

DOI: 10.12149/100178

CSTR: 11379.21.100178

Beijing-Arizona Sky Survey Data Release 3

Publish Time: 2019-08-30

DOI: 10.12149/100027

CSTR: 11379.11.100027

The Beijing–Arizona Sky Survey (BASS) is a wide and deep imaging survey that covers a 5400 sq. deg area in the northern Galactic cap with the 2.3 m Bok telescope using two filters (g and r bands). The Mosaic z-band Legacy Survey (MzLS) covers the same area in the z band with the 4 m Mayall telescope. These two surveys will be used for spectroscopic targeting by the Dark Energy Spectroscopic Instrument (DESI) in the northernmost portion of the DESI footprint. This paper describes the third data release (DR3) of BASS, which contains the photometric data from all BASS and MzLS observations from 2015 January until the completion of BASS in 2019 March. The median astrometric precision relative to Gaia positions is about 17 mas and the median photometric offset relative to the Pan- STARRS1 photometry is within 5 mmag. The median 5σ AB magnitude depths for point sources are 24.2, 23.6, and 23.0 mag for the g, r, and z bands, respectively. The photometric depth within the survey area is highly homogeneous, and the difference between the 20% and 80% depth is less than 0.3 mag. The DR3 data, including raw data, calibrated single-epoch images, single-epoch photometric catalogs, stacked images, and co-added photometric catalogs.

LAMOST Data Release 7 V0

Publish Time: 2019-07-31

DOI: 10.12149/100149

CSTR: 11379.11.100149

LAMOST Data Release 7 v0 contains spectra obtained between 2018.10.5 and 2019.6.30, including 558,412 low resolution spectra, 6,853,827 single exposure spectra and 1,670,813 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey.

LAMOST Data Release 7 V0 Q3

Publish Time: 2019-07-31

DOI: 10.12149/100140

CSTR: 11379.11.100140

LAMOST Data Release 7 v0 Q3 contains spectra obtained between 2019.1.1 and 2019.3.31, including 72,342 low resolution spectra, 502,196 single exposure spectra and 131,452 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey.

Antarctic AST3 Telescope Data Release 1

Publish Time: 2019-06-30

DOI: 10.12149/100014

CSTR: 11379.11.100014

Antarctic AST3 Telescope Data Release 1 - obtained by the first AST3 telescope, AST3-1, equipped with a SDSS i filter, contains images processed from observational data of 14,460 regions in 2012, surveyed ~ 2000 deg^2 fields as well as the LMC and SMC, released 14,460 images, 16,165,061 targets and 1,972,054 light curves.

LAMOST Data Release 5 v3

Publish Time: 2019-06-30

DOI: 10.12149/100013

CSTR: 11379.11.100013

LAMOST Data Release 5 V3 (DR5 V3) includes spectra from the LAMOST pilot and four years regular survey from October 24, 2011 to June 16, 2017, observing 4154 plates and releases a total of 9,026,365 spectra, including 5.34 million A, F, G and K type stars catalog.

LAMOST Data Release 7 V0 Q2

Publish Time: 2019-05-21

DOI: 10.12149/100131

CSTR: 11379.11.100131

LAMOST Data Release 7 v0 Q2 contains spectra obtained between 2019.1.1 and 2019.3.31, including 236,479 low resolution spectra, 2,842,936 single exposure spectra and 675,050 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey.

atomic clock rate

Publish Time: 2019-04-01

DOI: 10.12149/100572

CSTR: 11379.11.100572

The calculation cycle of the atomic clock rate of Bureau International Des Poids etMesures is one month, and the rate calculation result corresponding to the Julian day of the previous month is published at the beginning of each month, and the unit is ns/day. Among them, the different numbers of the serial numbers of the clocks correspond to different types of clocks, among which 35- represents cesium atomic clocks and 4x- represents hydrogen atomic clocks, these two occupy the vast majority of clock types, and there are other clock types. NTSC gets atomic clock rate data through data dictionary

BulletinD

Publish Time: 2019-04-01

DOI: 10.12149/100571

CSTR: 11379.11.100571

Announcements of the value of DUT1=UT1-UTC to be transmitted with time signals with a precision of +/-0.1s.

BulletinC

Publish Time: 2019-04-01

DOI: 10.12149/100570

CSTR: 11379.11.100570

Announcement of leap seconds in UTC and information on UTC-TAI.

BulletinB

Publish Time: 2019-04-01

DOI: 10.12149/100569

CSTR: 11379.11.100569

IERS Bulletin B provides current information on the Earth's orientation in the IERS Reference System. This includes Universal Time, coordinates of the terrestrial pole, and celestial pole offsets,etc.

BulletinA

Publish Time: 2019-04-01

DOI: 10.12149/100568

CSTR: 11379.11.100568

IERS Bulletin A contains Earth orientation parameters x/y pole, UT1-UTC and their errors at daily intervals and predictions for 1 year into the future,etc.

Time frequency Bulletin

Publish Time: 2019-04-01

DOI: 10.12149/100567

CSTR: 11379.11.100567

The time-frequency bulletin data mainly includes the time signal of the global positioning system (GPS) of the navigation satellite and other time difference data relative to the National Time Service Center Coordinated Universal Time System UTC (NTSC), the phase deviation between the local atomic time TA (NTSC) and UTC (NTSC), The final determination result of the earth's rotation parameters provided by IERS, and the correction number of the universal time number, the polar coordinates with JYD as the origin, etc.

atomic clock weight

Publish Time: 2019-04-01

DOI: 10.12149/100566

CSTR: 11379.11.100566

The weight of the atomic clock is a parameter in the calculation of the International Atomic Time and a sign to measure the long-term performance level of the atomic clock. Determining the weight of atomic clocks according to their performance can give full play to the advantages of atomic clocks with excellent performance. The calculation cycle of the BIPM atomic clock weight is one month, and the calculation result of the corresponding weight corresponding to the Julian day of the previous month is announced at the beginning of each month. NTSC gets atomic clock weight data through data dictionary.

Search Atomic Clock Frequency Drift

Publish Time: 2019-03-31

DOI: 10.12149/100743

CSTR: 11379.11.100743

The atomic clock frequency drift calculation period of the BIPM atomic clock is one month. Theatomic clock frequency drift calculation results corresponding to the Julian days of the previous month are published at the beginning of each month, in ns/day/30days. Among them, the serial number of the clock corresponds to different types of clock. Among them, 35- represents cesium atomic clock and 4x- represents hydrogen atomic clock, which occupy the vast majority of the clock types. In addition, there are other clock types. The NTSC obtained the atomic clock frequency drift value of the atomic clock in the laboratory by matching the data dictionary.

LAMOST Data Release 6 V1

Publish Time: 2019-03-27

DOI: 10.12149/100111

CSTR: 11379.11.100111

LAMOST Data Release 6 v1 contains totally obtain 9,919,106 spectra obtained from pilot survey which was launched in October 2011 and ended in June 2012, and the first six years of regular survey which was initiated on September 2012. It also provides 503,007 single exposure spectra and 841,282 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey between September 2017 and July 2018.

LAMOST Data Release 7 V0 Q1

Publish Time: 2019-02-19

DOI: 10.12149/100122

CSTR: 11379.11.100122

LAMOST Data Release 7 v0 Q1 contains spectra obtained between 2018.10.05-2018.12.31, including 249,591 low resolution spectra, 503,007 single exposure spectra and 841,282 coadded spectra obtained from the medium resolution spectral (MRS) commissioning survey.

LAMOST Quasar

Publish Time: 2019-01-31

DOI: 10.12149/100036

CSTR: 11379.11.100036

The LAMOST Quasar Catalog provides 42567 quasars selected from LAMOST DR1- DR5 after the completion of LAMOST Phase-I (2012-2017) Regular Surveys. Full content and detailed description can be found in Ai et al. (2016), Dong et al. (2018) and Yao et al. (2019).

LAMOST Data Release 5 v2

Publish Time: 2018-12-31

DOI: 10.12149/100012

CSTR: 11379.11.100012

LAMOST Data Release 5 V2 (DR5 V2) includes spectra from the LAMOST pilot and four years regular survey from October 24, 2011 to June 16, 2017, observing 4154 plates and releases a total of 9,027,634 spectra, including 4.53 million A, F, G and K type stars catalog.

LAMOST Data Release 6 V0

Publish Time: 2018-07-20

DOI: 10.12149/100106

CSTR: 11379.11.100106

The LAMOST Data Release 6 V0 includes information of 739,006 spectra in 438 plates acquired between Sep. 1st, 2017 and May 18th 2018.

LAMOST Data Release 6 V0 Q3

Publish Time: 2018-07-09

DOI: 10.12149/100101

CSTR: 11379.11.100101

The LAMOST Data Release 6 V0 Q3 include 108,580 spectra acquired between 2018.03.12 and 2018.05.18.

LAMOST Data Release 4 v2

Publish Time: 2018-06-30

DOI: 10.12149/100009

CSTR: 11379.11.100009

LAMOST Data Release 4 V2 (DR4 V2 includes spectra from the LAMOST pilot and four years regular survey from October 24, 2011 to June 2, 2016, observing 3461 plates and releases a total of 7,620,612 spectra, including 4.53 million A, F, G and K type stars catalog.

SDSS DR14

Publish Time: 2018-04-30

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This release makes the data taken by SDSS-IV in its first two years of operation (2014–2016 July) public. Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began operations in 2000. New in DR14 is the first public release of data from the extended Baryon Oscillation Spectroscopic Survey; the first data from the second phase of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2), including stellar parameter estimates from an innovative data-driven machine-learning algorithm known as “The Cannon”; and almost twice as many data cubes from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous release (N = 2812 in total). SDSS-IV is planning to continue to collect astronomical data until 2020 and will be followed by SDSS-V.

GAIA Data Release 2

Publish Time: 2018-04-26

Gaia relies on the proven principles of ESA's Hipparcos mission to help solve one of the most difficult yet deeply fundamental challenges in modern astronomy: the creation of an extraordinarily precise three-dimensional map of about one billion stars throughout our Galaxy and beyond. This massive stellar census provides the basic observational data to tackle an enormous range of important problems related to the origin, structure, and evolutionary history of our Galaxy. The Gaia mission delivers an astronomical catalogue and data archive of unprecedented scope, accuracy and completeness. The Gaia satellite was launched at the end of 2013, this second data release is based on observations collected between 25 July 2014 and 23 May 2016, spanning a period of 22 months of data collection (or 668 days). This second data release, which represents a major advance with respect to Gaia DR1 in terms of completeness, performance, and richness of the data products， consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability, for sources brighter than magnitude 21. In addition epoch astrometry and photometry are provided for a modest sample of minor planets in the solar system. More information is available at https://www.cosmos.esa.int/web/gaia/dr2.

LAMOST Data Release 6 V0 Q2

Publish Time: 2018-04-11

DOI: 10.12149/100096

CSTR: 11379.11.100096

This catalog totally published 427,226 targets observed between 2017.12.01 and 2018.02.28, including 389,689 stars, 11,755 galaxies, 3,185 quasars, and 22,597 unknown objects.

Nanshan One meter Wide-field Telescope

Publish Time: 2018-04-03

DOI: 10.12149/100304

CSTR: 11379.11.100304

After the Nanshan One meter Wide-field Telescope was installed in 2013 andthe detector upgrade and trial observations were completed in2014-2015, it was opened for scientific observation in 2016. Theprimary mirror of NOWT is parabolic, with an effective apertureof 1000 mm and a design effective field of view of 1.5◦×1.5◦.Equipped with Johnson, SDSS, and Strömgren filter systems commonly used for optical astronomical photometry, it can makeobservations of stellar types, parameters, metal abundances, etc. NOWT mainly focuses on optical time domain astronomy to carry out multicolor photometry, open cluster of stars observation, transient search and observation of small Solar System body. The data were generated in 2013 and released at the XAO Data Center on April 3, 2018.

LAMOST Data Release 6 V0 Q1

Publish Time: 2018-01-15

DOI: 10.12149/100091

CSTR: 11379.11.100091

The LAMOST Data Release 6 V0 Q1 include 203,200 spectra acquired between 2018.09.01 and 2017.11.30.

LAMOST Data Release 5 v1

Publish Time: 2017-12-31

DOI: 10.12149/100011

CSTR: 11379.11.100011

LAMOST Data Release 5 V1 (DR5 V1) includes spectra from the LAMOST pilot and four years regular survey from October 24, 2011 to June 16, 2017, observing 4154 plates and releases a total of 9,017,844 spectra, including 5.34 million A, F, G and K type stars catalog.

Beijing-Arizona Sky Survey Data Release 2

Publish Time: 2017-12-30

DOI: 10.12149/100023

CSTR: 11379.11.100023

The second data release (DR2) of the Beijing–Arizona Sky Survey (BASS), includes the observations through 2017 July obtained by BASS and by the Mayall z-band Legacy Survey (MzLS), which used the 4 m Mayall telescope to observe the same footprint. BASS and MzLS have completed 72% and 76% of their observations. The two surveys will be served for the spectroscopic targeting of the upcoming Dark Energy Spectroscopic Instrument. The DR2 data products include stacked images, co-added catalogs, and single-epoch images and catalogs.

The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)

Publish Time: 2017-10-23

The fourth United States Naval Observatory (USNO) CCD Astrograph Catalog, UCAC4, was released in 2012 August (double-sided DVD and CDS data center Vizier catalog I/322). It is the ﬁnal release in this series and contains over 113 million objects; over 105 million of them with proper motions (PMs). UCAC4 is an updated version of UCAC3 with about the same number of stars also covering all-sky. Bugs were ﬁxed, Schmidt plate survey data were avoided, and precise ﬁve-band photometry was added for about half the stars. Astrograph observations have been supplemented for bright stars by FK6, Hipparcos, and Tycho-2 data to compile a UCAC4 star catalog complete from the brightest stars to about magnitude R=16. Epoch 1998–2004 positions are obtained from observations with the 20 cm aperture USNO Astrograph’s “red lens,” equipped with a 4k by 4k CCD. Mean positions and PMs are derived by combining these observations with over 140 ground- and space-based catalogs, including Hipparcos/Tycho and the AC2000.2, as well as unpublished measures of over 5000 plates from other astrographs. For most of the faint stars in the southern hemisphere, the ﬁrst epoch plates from the Southern Proper Motion program form the basis for PMs, while the Northern Proper Motion ﬁrst epoch plates serve the same purpose for the rest of the sky. These data are supplemented by 2MASS near-IR photometry for about 110 million stars and ﬁve-band (B,V，g,r,i) APASS data for over 51 million stars. Thus the published UCAC4, as were UCAC3 and UCAC2, is a compiled catalog with the UCAC observational program being a major component. The positional accuracy of stars in UCAC4 at mean epoch is about 15–100 mas per coordinate, depending on magnitude, while the formal errors in PMs range from about 1 to 10 mas/yr depending on magnitude and observing history. Systematic errors in PMs are estimated to be about 1–4 mas/yr

The Fifth US Naval Observatory CCD Astrograph Catalog (UCAC5)

Publish Time: 2017-09-20

New astrometric reductions of the US Naval Observatory CCD Astrograph Catalog (UCAC) all-sky observations were performed from first principles using the TGAS stars in the 8–11 mag range as the reference star catalog. Signiﬁcant improvements in the astrometric solutions were obtained, and the UCAC5 catalog of mean positions at a mean epoch near 2001 was generated. By combining UCAC5 with Gaia DR1 data, new proper motions were obtained for over 107 million stars on the Gaia coordinate system, with typical accuracies of 1–2 mas/yr (R=11–15 mag) and about 5 mas/yr at 16th mag. Proper motions of most TGAS stars are improved over their Gaia data and the precision level of TGAS proper motions is extended to many millions more, fainter stars. External comparisons were made using stellar cluster fields and extragalactic sources. The TGAS data allow us to derive the limiting precision of the UCAC x, y data, which is signiﬁcantly better than 1/100 pixel.

Beijing-Arizona Sky Survey Data Release 1

Publish Time: 2017-01-30

DOI: 10.12149/100020

CSTR: 11379.11.100020

The Beijing-Arizona Sky Survey (BASS) is a wide-field two-band photometric survey of the northern Galactic Cap (5400 sq. deg) using the 90Prime imager on the 2.3 m Bok telescope at Kitt Peak. It is a four-year collaboration between the National Astronomical Observatory of China and Steward Observatory, the University of Arizona, serving as one of the three imaging surveys to provide photometric input catalogs for target selection of the Dark Energy Spectroscopic Instrument (DESI) project. This is the First Data Release of BASS obtained by Bok telescope from January 2015 to July 2016, contains single-epoch images, single-epoch catalogs, and co-added catalogs. About 41% of the whole survey has been completed.

GAIA Data Release 1

Publish Time: 2017-01-10

Gaia relies on the proven principles of ESA's Hipparcos mission to help solve one of the most difficult yet deeply fundamental challenges in modern astronomy: the creation of an extraordinarily precise three-dimensional map of about one billion stars throughout our Galaxy and beyond. This massive stellar census provides the basic observational data to tackle an enormous range of important problems related to the origin, structure, and evolutionary history of our Galaxy. The Gaia mission delivers an astronomical catalogue and data archive of unprecedented scope, accuracy and completeness. The Gaia satellite was launched at the end of 2013, this release contains the data collected by Gaia during the first 14 months, including astrometry and photometry for over 1 billion sources brighter than G magnitude 20.7.

LAMOST Data Release 4 v1

Publish Time: 2016-12-31

DOI: 10.12149/100008

CSTR: 11379.11.100008

LAMOST Data Release 4 V1 (DR4 V1) includes spectra from the LAMOST pilot and four years regular survey from October 24, 2011 to June 2, 2016, observing 3459 plates and releases a total of 7,661,651 spectra, including 4.33 million A, F, G and K type stars catalog.

The PAN-STARRS1 (PS1)

Publish Time: 2016-12-20

DOI: 10.12149/102004

The Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) is a system for wide-field astronomical imaging developed and operated by the Institute for Astronomy at the University of Hawaii. Pan-STARRS1 (PS1) is the first part of Pan-STARRS and is the basis for Data Release 1 (DR1). The PS1 survey used a 1.8m telescope and its 1.4 Gigapixel camera (GPC1) to image the sky in five broadband filters (g, r, i, z, y). PS1 took approximately 370000 exposures from 2010 to 2015. Data for this catalog has been retrieved from the Mikulski Archive for Space Telescopes (MAST) at STScI.

Lijiang 2.4m Telescope Data

Publish Time: 2016-06-30

DOI: 10.12149/100044

CSTR: 11379.11.100044

The Lijiang 2.4m optical telescope of Yunnan Observatory was installed at Lijiang Observatory in the northwest of the Yunnan Province in 2007. Lijiang 2.4m Telescope Data contains raw observational data since september 2010.

The 1m New Vacuum Solar Telescope Data - Level 1.5

Publish Time: 2016-06-30

DOI: 10.12149/100042

CSTR: 11379.11.100042

The 1m New Vacuum Solar Telescope hosted by the Fuxian Solar Observatory, is situated on the shores of Fuxian Lake, at latitude 24 34 48N, longitude 102 57 01E. The station is a subsidiary of Yunnan Observatories. The 1m New Vacuum Solar Telescope Data - Level 1.5 provides processed level 1.5 data.

HSOS Solar Multi-Channel Telescope Data

Publish Time: 2016-06-30

DOI: 10.12149/100040

CSTR: 11379.11.100040

HSOS Solar Multi-Channel Telescope located at Huairou Solar Observing Station is a unique video magnetograph in the world that can simultaneously measure the solar 2-dimension magnetic field and velocity field with different spectral lines. The HSOS Solar Multi-Channel Telescope Data contains observation data since 1997.

HSOS Solar Broad Band Spectrometer Data

Publish Time: 2016-06-30

DOI: 10.12149/100039

CSTR: 11379.11.100039

The Solar Broadband Radio Spectrometer (SBRS) located in Huairou Solar Observing Station mainly records the characteristics of the dynamic spectrum of radio radiation in the sun's atmosphere changing over time. The HSOS Solar Broad Band Spectrometer Data contains observation data since 1994.

The South Galactic Cap u-band Sky Survey Data

Publish Time: 2016-02-20

DOI: 10.12149/100032

CSTR: 11379.11.100032

The South Galactic Cap u-band Sky Survey (SCUSS) is a deep u-band imaging survey in the south Galactic cap using the 2.3 m Bok telescope. The survey observations were completed at the end of 2013, covering an area of about 5000 square degrees. We release the data in the region with an area of about 4000 deg2 that is mostly covered by the Sloan digital sky survey. The data products contain calibrated single-epoch images, stacked images, photometric catalogs, and a catalog of star proper motions derived by Peng et al. The median seeing and magnitude limit (5σ) are about 2.0” and 23.2 mag, respectively. There are about 8 million objects having measurements of absolute proper motions. All the data and related documentations can be accessed through the SCUSS data release website http://batc.bao.ac.cn/Uband/data.html and the National Astronomical Data Center website https://nadc.china-vo.org.

Beijing-Arizona Sky Survey Early Data Release

Publish Time: 2015-12-30

DOI: 10.12149/100018

CSTR: 11379.11.100018

The Beijing-Arizona Sky Survey (BASS) is a wide-field two-band photometric survey of the northern Galactic Cap using the 90Prime imager on the 2.3 m Bok telescope at Kitt Peak. It is a four-year collaboration between the National Astronomical Observatory of China and Steward Observatory, the University of Arizona, serving as one of the three imaging surveys to provide photometric input catalogs for target selection of the Dark Energy Spectroscopic Instrument (DESI) project. This is the early data release of BASS obtained by Bok telescope from January to July in 2015, contains single-epoch images, single-epoch catalogs and co-added catalogs.

LAMOST Data Release 3

Publish Time: 2015-12-15

DOI: 10.12149/100005

CSTR: 11379.11.100005

LAMOST Data Release 3 (DR3) includes spectra from the LAMOST pilot and three years regular survey from October 24, 2011 to May 30, 2015, observing 2667 plates and obtaining 4,664,048 star spectra with a signal-to-noise ratio greater than 10. DR3 releases a total of 5,755,126 spectra, including 3.17 million A, F, G and K type stars catalog.

SDSS DR12

Publish Time: 2015-07-31

DOI: 10.12149/102018

Data Release 12 (DR12) is the final release of the Sloan Digital Sky Survey III. DR12 contains all data taken by all phases of the SDSS through 14 July 2014. SDSS-III took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near- infrared high-resolution spectrograph, and a novel optical interferometer. All of the data from SDSS-III are now made public. Relative to our previous public release (DR10), DR12 adds one million new spectra of galaxies and quasars from the Baryon Oscillation Spectroscopic Survey (BOSS) over an additional 3000 deg^2 of sky, more than triples the number of H-band spectra of stars as part of the Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE), and includes repeated accurate radial velocity measurements of 5500 stars from the Multi-object APO Radial Velocity Exoplanet Large-area Survey (MARVELS). The APOGEE outputs now include the measured abundances of 15 different elements for each star. In total, SDSS-III added 5200 deg^2 of ugriz imaging; 155,520 spectra of 138,099 stars as part of the Sloan Exploration of Galactic Understanding and Evolution 2 (SEGUE-2) survey; 2,497,484 BOSS spectra of 1,372,737 galaxies, 294,512 quasars, and 247,216 stars over 9376 deg^2; 618,080 APOGEE spectra of 156,593 stars; and 197,040 MARVELS spectra of 5513 stars. Since its first light in 1998, SDSS has imaged over 1/3 of the Celestial sphere in five bands and obtained over five million astronomical spectra.

LAMOST Data Release 2

Publish Time: 2014-12-30

DOI: 10.12149/100003

CSTR: 11379.11.100003

LAMOST Data Release 2 (DR2) includes spectra from the LAMOST pilot and two years regular survey from October 24, 2011 to June 5, 2014, observing 1934 plates and obtaining 3,274,369 star spectra with a signal-to-noise ratio greater than 10. DR2 releases a total of 4,132,782 spectra, including 2.2 million A, F, G and K type stars catalog.

multi-channel near infrared solar spectrometer

Publish Time: 2014-07-30

DOI: 10.12149/100301

CSTR: 11379.11.100301

The Multi-channel near infrared solar spectrometer (miss),which was built in the 1970 s, after the 80 s and 90 s, in 2015 (the latest upgrade) in this century, now developed into five wavebands (Hα 6563 Å、 Ca II 8498Å、 8542Å、 8662Å and He I 10830Å) high space-time high spectral resolution of two-dimensional spectral information and high space-time resolution Hα monochrome image data.

Nanshan 25m Radio Telescope Data

Publish Time: 2014-06-06

DOI: 10.12149/100303

CSTR: 11379.11.100303

Nanshan 25m radio telescope is a modified Cassegrain antenna, which was built andput into use in 1993. It is a member of the European VeryLong Baseline Interference Network, the International DynamicGeodetic Network, the Russian Low-Frequency VLBI Network, andthe East Asian VLBI Network. It mainly conducts surveys andmonitoring of pulsars, active galactic nuclei (AGN), molecularlines, and IDV sources and supports galactic plane magnetic fieldsurveys and Jupiter studies. The data set of NSRT includes pulsars, molecular lines and intra-day vairibility observations. Since January 2010, nanshan 25m radio telescope has made observations of nearly 300 pulsars using an 18-cm refrigerating receiver and DFB system. DFB data was generated in 2010, and the raw data of DFB is about 20TB per year. The data release system was releazed in 2014.

LAMOST Data Release 1

Publish Time: 2013-08-26

DOI: 10.12149/100001

CSTR: 11379.11.100001

LAMOST Data Release 1 (DR1) includes spectra from the LAMOST pilot and first-year regular survey from October 24, 2011 to June 15, 2013. The LAMOST pilot survey began on October 24, 2011 and ended on June 24, 2012, observing 401 plates and obtaining 547,868 star spectra with a signal-to-noise ratio greater than 10 and 373,481 A, F, G and K type stars catalog. The LAMOST first-year regular survey conducted from September 28, 2012 to June 15, 2013, observing 689 plates and obtaining 1,173,928 star spectra with a signal-to-noise ratio greater than 10 and a atalog of 711,923 A, F, G and K type stars. DR1 releases a total of 2.2 million spectra, including 1.08 million A, F, G and K type stars catalog.

Ganyu Fine Structure Telescope Data

Publish Time: 2012-10-30

The Gan Yu Fine Structure Telescope, with a 26cm aperture, is specifically designed for observing the solar chromosphere at a wavelength of 656.3 nanometers. It enables rapid imaging of the active regions of the Sun, making it a valuable tool for studying the triggering and energy release of solar flares, as well as the fine processes of dark filament eruptions and chromospheric surges. The recorded data spans from 2008 to June 2021, during which a total of 24 C class solar flares were observed, including 12 major flares of M class or higher .

Wide-field Infrared Survey Explorer （WISE）All Sky Data Release

Publish Time: 2012-04-02

NASA's Wide-field Infrared Survey Explorer (WISE; Wright et al. 2010) mapped the sky at 3.4, 4.6, 12, and 22 μm (W1, W2, W3, W4) in 2010 with an angular resolution of 6.1", 6.4", 6.5", & 12.0" in the four bands. WISE achieved 5σ point source sensitivities better than 0.08, 0.11, 1 and 6 mJy in unconfused regions on the ecliptic in the four bands. Sensitivity improves toward the ecliptic poles due to denser coverage and lower zodiacal background. The All-Sky Release includes all data taken during the WISE full cryogenic mission phase, 7 January 2010 to 6 August 2010, that were processed with improved calibrations and reduction algorithms. Release data products include an Atlas of 18,240 match-filtered, calibrated and coadded image sets, a Source Catalog containing positional and photometric information for over 563 million objects detected on the WISE images, and an Explanatory Supplement that is a guide to the format, content, characteristics and cautionary notes for the WISE All-Sky Release products. The WISE All-Sky Data Release products supersede those from the April 2011 Preliminary Data Release. All-Sky Release ancillary products include a Reject Table containing 284 million detections that were not selected for inclusion in the Source Catalog because they are low signal-to-noise ratio or spurious detections of image artifacts, an archive of over 1.5 million Single-exposure Image sets and a database of over 9.4 billion source extractions from those images, and moving object tracklets identified as part of the NEOWISE program (Mainzer et al. 2011). Here we only provide catalog data.

PMO 13.7m data

Publish Time: 2011-09-01

DOI: 10.12149/100413

CSTR: 11379.11.100413

There are three types of observed data produced by the 13.7-meter millimeter-wave radio telescope. The first type is observed in the single-point observation mode according to the requirements of the observer. Each spectral line contains one Fits file, and one record in the database table corresponds to the header information of one file.A total of 3.06 million spectral lines have been observed since 2003.The second method is to use OTF observation mode to observe data as required by the observer. and two fits cube files are generated after averaging the scan results of the same area mapped every day, with one record in the database corresponding to the header information of that two file. The scan area ranges from 10′ × 10′ to 30′ × 30′, and more than 5,900 areas have been observed since 2011.The third is Milky Way Imaging Scroll Painting (MWISP), The Purple Mountain Observatory (PMO) of the Chinese Academy of Sciences has organized MWISP project since November 2011. The 13.7m millimeter wave telescope of the Qinghai Station of PMO has been used to simultaneously observe the three molecular spectral lines of CO(J=1-0) and its isotopes 13CO/C18O(J=1-0) near the galactic plane of the North sky. The first phase of the survey, which has lasted for 10 years, has been completed at the end of April 2021, covering a total of 2,400 square degrees 0°≤ l≤ 240°,|b|≤ 5°, and establishing the Millimeter Wave Radio Astronomy Database. After the discussion of the MWISP survey working group, it was decided to continue the second phase of the MWISP survey and extend the survey area to |b|<10°. This survey will help to expand scientific objectives and provide a wider range of molecular gas distribution data for multi-band astronomical research. The second phase of the survey has begun on September 1, 2021 and is expected to last the next ten years.

The Third US Naval Observatory CCD Astrograph Catalog (UCAC3)

Publish Time: 2010-04-25

The third US Naval Observatory (USNO) CCD Astrograph Catalog, UCAC3 was released at the IAU General Assembly on 2009 August 10. It is the first all-sky release in this series and contains just over 100 million objects, about 95 million of them with proper motions, covering about R = 8 to 16 magnitudes. Current epoch positions are obtained from the observations with the 20 cm aperture USNO Astrograph’s “red lens”, equipped with a 4k by 4k CCD. Proper motions are derived by combining these observations with over 140 ground- and space-based catalogs, including Hipparcos/Tycho and the AC2000.2, as well as unpublished measures of over 5000 plates from other astrographs. For most of the faint stars in the Southern Hemisphere the Yale/San Juan first epoch plates from the SPM program (YSJ1) form the basis for proper motions. These data are supplemented by all-sky Schmidt plate survey astrometry and photometry obtained from the SuperCOSMOS project, as well as 2MASS near-IR photometry. Major differences of UCAC3 data as compared to UCAC2 include a completely new raw data eduction with improved control over systematic errors in positions, significantly improved photometry, slightly deeper limiting magnitude, coverage of the north pole region, greater completeness by inclusion of double stars and weak detections. This of course leads to a catalog which is not as “clean” as UCAC2 and problem areas are outlined for the user in UCAC3 publishing paper in Zacharias et al 2010. The positional accuracy of stars in UCAC3 is about 15 to 100 mas per coordinate, depending on magnitude, while the errors in proper motions range from 1 to 10 mas/yr depending on magnitude and observing history, with a significant improvement over UCAC2 achieved due to the re-reduced SPM data and inclusion of more astrograph plate data unavailable at the time of UCAC2.

The First Release of the CSTAR

Publish Time: 2010-03-30

DOI: 10.12149/100038

CSTR: 11379.11.100038

The Chinese Small Telescope ARray (CSTAR) is deployed at Dome A in 2008 January by the twenty-fourth Chinese expedition team. CSTAR consists four 14.5cm optical telescopes, each with a different filter (g, r, i and open) and has a 4.5x4.5 sq. degree FOV. In 2008, CSTAR 1 performed almost flawlessly, acquiring more than 0.3 million i-band images for a total integration time of 1728 hr during 158 days of observations. CSTAR has a fixed pointing centered on the south celestial pole, all the sources were monitored continuously for several months. This first release contains 21845 light curve derived from its observation data in 2008.

The Second US Naval Observatory CCD Astrograph Catalog (UCAC2)

Publish Time: 2006-10-13

The second US Naval Observatory (USNO) CCD Astrograph Catalog, UCAC2 was released in 2003 July. Positions and proper motions for 48,330,571 sources mostly stars) are available on 3 CDs, supplemented with Two Micron All Sky Survey photometry for 99.5% of the sources. The catalog covers the sky area from -90° to +40° declination, going up to +52° in some areas; this completely supersedes the UCAC1 released in 2001. Current epoch positions are obtained from observations with the USNO 8 inch (0.2 m) Twin Astrograph equipped with a 4K CCD camera. The precision of the positions are 15–70 mas, depending on magnitude, with estimated systematic errors of 10 mas or below. Proper motions are derived by using over 140 ground- and spacebased catalogs, including Hipparcos/Tycho and the AC2000.2, as well as yet unpublished remeasures of the AGK2 plates and scans from the NPM and SPM plates. Proper-motion errors are about 1–3 mas/yr for stars to 12th magnitude, and about 4–7 mas yr1 for fainter stars to 16th magnitude.

First U.S. Naval Observatory CCD Astrograph Catalog(UCAC1)

Publish Time: 2004-11-30

The USNO CCD Astrograph (UCA) started an astrometric survey in 1998 February at Cerro Tololo, Chile. This Ðrst, preliminary catalog (UCAC1) includes data taken up to 1999 November with about 80% of the Southern Hemisphere covered. Observing continues, and full sky coverage is expected by mid-2003 after moving the instrument to a Northern Hemisphere site in early 2001. The survey is performed in a single bandpass (579-642 nm), a twofold overlap pattern of Ðelds, and with a long and a short exposure on each field. Stars in the magnitude range 10-14 have positional precisions of <=20 mas. At the limiting magnitude of RB 16 mag, the positional precision is 70 mas. The UCAC aims at a density (stars per square degree) larger than that of the Guide Star Catalog (GSC) with a positional accuracy similar to Tycho. The UCAC program is a major step toward a high-precision densiÐcation of the optical reference frame in the post Hipparcos era, and the first stage, the UCAC1 contains over 27million stars. Preliminary proper motions are included, which were derived from Tycho-2, Hipparcos, and ground-based transit circle and photographic surveys for the bright stars (V <=12.5 mag) and the USNO A2.0 for the fainter stars. The accuracy of the proper motions varies widely, from 1 to over 15 mas yr~1.