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