| 1 | synchrotron self compton | SSC | 81 | 7 | 1.002195 | 9901324,9901106,etc |
| 2 | proportional counter array | PCA | 60 | 6 | 2.002106 | 9901125,9901161,etc |
| 3 | high resolution imager | HRI | 90 | 6 | 1.001446 | 9901348,9901132,etc |
| 4 | all sky monitor | ASM | 24 | 5 | 1.002492 | 9901125,9901404,etc |
| 5 | two dimensional | 2D | 34 | 4 | 2.001552 | 9901108,9901279,etc |
| 6 | friedmann robertson walker | FRW | 26 | 4 | 2.001441 | 9901040,9901212,etc |
| 7 | space telescope imaging spectrograph | STIS | 33 | 4 | 2.001433 | 9901320,9901280,etc |
| 8 | signal to noise | S/N | 14 | 4 | 1.000182 | 9901263,9901101,etc |
| 9 | power density spectra | PDS | 11 | 4 | 1.000582 | 9901050,9901162,etc |
| 10 | inverse compton | IC | 137 | 3 | 1.003085 | 9901018,9901061,etc |
| 11 | point source catalog | PSC | 19 | 3 | 2.000991 | 9901419,9901126,etc |
| 12 | colour magnitude diagram | CMD | 103 | 3 | 2.001158 | 9901245,9901252,etc |
| 13 | kelvin helmholtz | KH | 53 | 3 | 2.002223 | 9901166,9901379,etc |
| 14 | versatile advection code | VAC | 27 | 3 | 2.000959 | 9901166,9901380,etc |
| 15 | wide field cameras | WFC | 22 | 3 | 2.001527 | 9901413,9901233,etc |
| 16 | photon dominated region | PDR | 31 | 3 | 2.000387 | 9901134,9901133,etc |
| 17 | high magnification event | HME | 100 | 3 | 2.003732 | 9901341,9901336,etc |
| 18 | kolmogorov smirnov | KS | 25 | 3 | 2.001362 | 9901341,9901214,etc |
| 19 | lyon meudon extragalactic database | LEDA | 33 | 3 | 1.002107 | 9901412,9901214,etc |