| low surface brightness | LSB | 103 | 5 | 1.008469 | 0006006,0006253,etc |
| kolmogorov smirnov | KS | 14 | 5 | 1.000444 | 0006379,0006347,etc |
| two dimensional | 2-D | 39 | 5 | 1.000867 | 0006240,0006324,etc |
| wide field camera | WFC | 61 | 4 | 2.002212 | 0006335,0006325,etc |
| all sky monitor | ASM | 14 | 4 | 1.000463 | 0006335,0006061,etc |
| one dimensional | 1D | 27 | 4 | 2.000658 | 0006351,0006161,etc |
| rosat all sky survey | RASS | 20 | 4 | 1.000946 | 0006148,0006127,etc |
| signal to noise | S/N | 40 | 4 | 2.00086 | 0006287,0006149,etc |
| sunyaev zel'dovich | SZ | 38 | 3 | 2.003676 | 0006453,0006455,etc |
| power density spectrum | PDS | 77 | 3 | 2.006241 | 0006227,0006139,etc |
| high resolution imager | HRI | 45 | 3 | 2.00132 | 0006361,0006072,etc |
| greisen zatsepin kuzmin | GZK | 26 | 3 | 1.000591 | 0006349,0006111,etc |
| diffuse ionized gas | DIG | 90 | 3 | 2.002956 | 0006301,0006026,etc |
| period luminosity color | PLC | 37 | 3 | 2.001035 | 0006236,0006251,etc |
| lyon meudon extragalactic database | LEDA | 6 | 3 | 1.000026 | 0006038,0006296,etc |
| magellanic cloud | MC | 144 | 3 | 2.0081 | 0006251,0006229,etc |
| period luminosity | PL | 60 | 3 | 1.002784 | 0006251,0006228,etc |
| eso slice project | ESP | 7 | 3 | 1.000099 | 0006389,0006153,etc |
| particle mesh | PM | 7 | 3 | 1.000333 | 0006198,0006203,etc |
| three dimensional | 3-D | 40 | 3 | 1.001944 | 0006240,0006118,etc |
| proportional counter array | PCA | 11 | 3 | 1.000636 | 0006245,0006234,etc |
| x ray luminosity function | XLF | 13 | 3 | 2.000265 | 0006109,0006081,etc |
| planetary camera | PC | 82 | 3 | 1.004015 | 0006325,0006230,etc |
| wide field and planetary camera 2 | WFPC2 | 49 | 3 | 1.00238 | 0006230,0006306,etc |
| inverse compton | IC | 25 | 3 | 2.002031 | 0006176,0006391,etc |