| 1 | advanced ccd imaging spectrometer | ACIS | 97 | 10 | 1.003917 | 0202083,0202277,etc |
| 2 | reflection grating spectrometer | RGS | 15 | 7 | 1.000178 | 0202077,0202375,etc |
| 3 | european photon imaging camera | EPIC | 30 | 7 | 1.000654 | 0202077,0202398,etc |
| 4 | 2 micron all sky survey | 2MASS | 42 | 7 | 1.001205 | 0202182,0202216,etc |
| 5 | synchrotron self compton | SSC | 34 | 6 | 1.000926 | 0202068,0202280,etc |
| 6 | space telescope imaging spectrograph | STIS | 57 | 5 | 2.000975 | 0202170,0202289,etc |
| 7 | signal to noise | S/N | 26 | 5 | 2.000999 | 0202429,0202379,etc |
| 8 | good time interval | GTI | 14 | 5 | 1.001182 | 0202480,0202154,etc |
| 9 | kolmogorov smirnov | KS | 18 | 5 | 1.000372 | 0202423,0202431,etc |
| 10 | hopkins ultraviolet telescope | HUT | 16 | 4 | 2.000349 | 0202162,0202293,etc |
| 11 | medium energy grating | MEG | 29 | 4 | 2.001391 | 0202083,0202333,etc |
| 12 | press schechter | PS | 41 | 4 | 1.001137 | 0202117,0202201,etc |
| 13 | tully fisher | TF | 84 | 4 | 1.005136 | 0202267,0202057,etc |
| 14 | inverse compton | IC | 30 | 4 | 2.001048 | 0202279,0202116,etc |
| 15 | wide field and planetary camera 2 | WFPC2 | 39 | 3 | 2.000583 | 0202047,0202268,etc |
| 16 | wolf rayet | WR | 106 | 3 | 2.005233 | 0202047,0202203,etc |
| 17 | science analysis software | SAS | 4 | 3 | 1.000122 | 0202077,0202093,etc |
| 18 | max planck institute for astronomy | MPIA | 3 | 3 | 1.000166 | 0202408,0202251,etc |
| 19 | smooth particle hydrodynamics | SPH | 116 | 3 | 2.003437 | 0202485,0202112,etc |
| 20 | low luminosity agn | LLAGN | 23 | 3 | 1.003777 | 0202511,0202044,etc |
| 21 | short wavelength spectrometer | SWS | 37 | 3 | 2.001889 | 0202171,0202506,etc |
| 22 | high energy grating | HEG | 22 | 3 | 2.001374 | 0202083,0202333,etc |
| 23 | black hole candidate | BHC | 10 | 3 | 1.00107 | 0202295,0202154,etc |
| 24 | narrow field instruments | NFI | 7 | 3 | 1.000354 | 0202295,0202154,etc |
| 25 | chandra x ray center | CXC | 4 | 3 | 1.000373 | 0202202,0202139,etc |
| 26 | wide field camera | WFI | 20 | 3 | 1.001604 | 0202494,0202268,etc |
| 27 | rosat all sky survey | RASS | 13 | 3 | 2.00046 | 0202117,0202394,etc |
| 28 | non equilibrium ionization | NEI | 9 | 3 | 1.000316 | 0202484,0202065,etc |
| 29 | low surface brightness | LSB | 99 | 3 | 1.00874 | 0202307,0202057,etc |
| 30 | burst and transient source experiment | BATSE | 30 | 3 | 2.001191 | 0202209,0202100,etc |
| 31 | turn off | TO | 74 | 3 | 1.00368 | 0202419,0202501,etc |
| 32 | particle mesh | PM | 34 | 3 | 1.001145 | 0202090,0202358,etc |
| 33 | faint object spectrograph | FOS | 17 | 3 | 2.000096 | 0202134,0202252,etc |
| 34 | ultra luminous infrared galaxy | ULIRG | 52 | 3 | 2.003696 | 0202352,0202412,etc |
| 35 | astrophysical research consortium | ARC | 3 | 3 | 1.00015 | 0202251,0202235,etc |
| 36 | hubble deep field north | HDF-N | 29 | 3 | 2.001336 | 0202044,0202359,etc |