| 1 | signal to noise | S/N | 44 | 8 | 1.001146 | 0204339,0204101,etc |
| 2 | proportional counter array | PCA | 44 | 7 | 2.000843 | 0204300,0204368,etc |
| 3 | low surface brightness | LSB | 45 | 6 | 2.000466 | 0204136,0204343,etc |
| 4 | two dimensional | 2D | 173 | 6 | 2.001842 | 0204154,0204149,etc |
| 5 | sunyaev zel'dovich | SZ | 88 | 5 | 1.001376 | 0204100,0204017,etc |
| 6 | the red giant branch | TRGB | 117 | 5 | 2.003005 | 0204528,0204192,etc |
| 7 | star formation history | SFH | 54 | 5 | 2.001352 | 0204399,0204316,etc |
| 8 | space telescope imaging spectrograph | STIS | 75 | 5 | 2.001105 | 0204498,0204304,etc |
| 9 | inverse compton | IC | 85 | 5 | 2.003349 | 0204141,0204406,etc |
| 10 | charge transfer efficiency | CTE | 17 | 5 | 1.000275 | 0204234,0204057,etc |
| 11 | advanced ccd imaging spectrometer | ACIS | 91 | 4 | 2.001957 | 0204147,0204252,etc |
| 12 | full width half maximum | FWHM | 78 | 4 | 1.003925 | 0204464,0204212,etc |
| 13 | kolmogorov smirnov | KS | 101 | 4 | 2.004249 | 0204171,0204185,etc |
| 14 | max planck institute for astronomy | MPIA | 4 | 4 | 1.000106 | 0204162,0204065,etc |
| 15 | all sky monitor | ASM | 31 | 4 | 1.001119 | 0204132,0204267,etc |
| 16 | low energy transmission grating | LETG | 35 | 4 | 2.001458 | 0204159,0204237,etc |
| 17 | herbig haro | HH | 365 | 4 | 2.004811 | 0204417,0204434,etc |
| 18 | hubble deep field north | HDFN | 14 | 4 | 2.000444 | 0204315,0204198,etc |
| 19 | faint object spectrograph | FOS | 40 | 4 | 2.00065 | 0204408,0204304,etc |
| 20 | planetary camera | PC | 126 | 4 | 2.000606 | 0204184,0204182,etc |
| 21 | one dimensional | 1D | 46 | 4 | 2.000676 | 0204149,0204158,etc |
| 22 | blue compact dwarf | BCD | 136 | 3 | 1.004704 | 0204528,0204301,etc |
| 23 | long wavelength spectrometer | LWS | 90 | 3 | 1.002593 | 0204241,0204432,etc |
| 24 | high resolution imager | HRI | 45 | 3 | 2.003356 | 0204489,0204128,etc |
| 25 | dwarf irregular | dI | 19 | 3 | 1.00205 | 0204343,0204301,etc |
| 26 | submillimeter common user bolometer array | SCUBA | 47 | 3 | 2.000371 | 0204060,0204140,etc |
| 27 | astrophysical research consortium | ARC | 7 | 3 | 1.00024 | 0204065,0204383,etc |
| 28 | intra cluster medium | ICM | 132 | 3 | 2.004117 | 0204389,0204161,etc |
| 29 | institute of space and astronautical science | ISAS | 9 | 3 | 1.000197 | 0204011,0204009,etc |
| 30 | nasa/ipac extra galactic database | NED | 3 | 3 | 1.000066 | 0204011,0204009,etc |
| 31 | dwarf spheroidal | dSph | 126 | 3 | 2.002747 | 0204042,0204109,etc |
| 32 | charge transfer inefficiency | CTI | 30 | 3 | 1.009747 | 0204242,0204252,etc |
| 33 | local thermodynamical equilibrium | LTE | 13 | 3 | 2.000474 | 0204309,0204401,etc |