| kolmogorov smirnov | KS | 17 | 7 | 1.000349 | 0002170,0002265,etc |
| proportional counter array | PCA | 44 | 7 | 1.001633 | 0002074,0002181,etc |
| photodissociation region | PDR | 70 | 6 | 2.002617 | 0002357,0002282,etc |
| friedmann robertson walker | FRW | 23 | 5 | 1.00047 | 0002281,0002156,etc |
| sunyaev zel'dovich | SZ | 247 | 5 | 2.007513 | 0002271,0002044,etc |
| short wavelength spectrometer | SWS | 77 | 5 | 2.001846 | 0002421,0002273,etc |
| signal to noise | S/N | 29 | 5 | 2.000295 | 0002062,0002195,etc |
| high resolution imager | HRI | 35 | 5 | 1.000263 | 0002005,0002033,etc |
| wolf rayet | WR | 219 | 4 | 2.006895 | 0002233,0002411,etc |
| inverse compton | IC | 46 | 4 | 1.003366 | 0002375,0002411,etc |
| semi analytic model | SAM | 30 | 4 | 1.001273 | 0002170,0002454,etc |
| interactive analysis | IA | 8 | 4 | 1.00058 | 0002008,0002195,etc |
| burst and transient source experiment | BATSE | 39 | 4 | 1.002673 | 0002181,0002327,etc |
| all sky monitor | ASM | 33 | 4 | 2.001056 | 0002168,0002327,etc |
| gigahertz peaked spectrum | GPS | 169 | 3 | 2.003411 | 0002129,0002130,etc |
| space telescope imaging spectrograph | STIS | 21 | 3 | 2.00146 | 0002438,0002108,etc |
| cosmic infrared background | CIB | 15 | 3 | 1.002258 | 0002436,0002283,etc |
| black hole candidate | BHC | 17 | 3 | 1.000548 | 0002084,0002219,etc |
| proportional counter unit | PCU | 17 | 3 | 1.000188 | 0002084,0002265,etc |
| relative spectral response function | RSRF | 6 | 3 | 1.000055 | 0002008,0002195,etc |
| near infrared camera and multi object spectrometer | NICMOS | 56 | 3 | 2.000353 | 0002445,0002078,etc |
| full width half maximum | FWHM | 10 | 3 | 1.000128 | 0002256,0002490,etc |
| agenzia spaziale italiana | ASI | 6 | 3 | 1.000431 | 0002348,0002346,etc |
| consiglio nazionale delle ricerche | CNR | 7 | 3 | 1.000834 | 0002348,0002346,etc |
| nasa extragalactic database | NED | 5 | 3 | 1.000196 | 0002101,0002297,etc |
| automatic plate measuring | APM | 65 | 3 | 2.003553 | 0002138,0002459,etc |
| greisen zatsepin kuzmin | GZK | 33 | 3 | 1.000421 | 0002155,0002006,etc |
| low surface brightness | LSB | 103 | 3 | 2.009422 | 0002191,0002080,etc |
| globular cluster system | GCS | 81 | 3 | 2.001226 | 0002088,0002087,etc |
| large velocity gradient | LVG | 3 | 3 | 1.00002 | 0002478,0002484,etc |
| unidentified infrared band | UIB | 18 | 3 | 2.001258 | 0002195,0002209,etc |
| synchrotron self compton | SSC | 87 | 3 | 2.003056 | 0002134,0002215,etc |
| low mass x ray binaries | LMXB | 37 | 3 | 2.001606 | 0002114,0002220,etc |
| tully fisher | TF | 43 | 3 | 1.004257 | 0002420,0002226,etc |