| Show | Sort | Column | Constraint | Explain (UCD) |
| | | recno | | Record number assigned by the VizieR team. Should Not be used for identification. |
| | | FIRST | | find the FIRST original data |
| | | RXS | (char) | X-ray source ROSAT All Sky Survey designation |
| | | RAJ2000 | "h:m:s" | FIRST source right ascension (J2000) |
| | | DEJ2000 | "d:m:s" | FIRST source declination (J2000) |
| | | dRX | arcsec | Distance between radio and X-ray source |
| | | Name | (char) | Common name for source obtained from NED, truncated to the first 14 characters. |
| | | Type | (char) | Type of the object (Note G1)
|
| | | r_Type | (char) | Reference for classification (Note 2)
|
| | | z | | (n) Redshift |
| | | Fr | mJy | FIRST 1.4 GHz peak flux |
ALL cols | | | |
| | | Fx | 10-15W/m2 | X-ray flux in the 0.1-2.4 keV energy range |
| | | e_Fx | 10-15W/m2 | rms uncertainty on Fx |
| | | Gamma | | (n) Power-law photon index of X-ray source (Note 3)
|
| | | E_Gamma | | (n) Error in Gamma (upper limit) |
| | | e_Gamma | | (n) Error in Gamma (lower limit) |
| | | Emag | mag | (n) E-magnitude of the optical counterpart (from APM) |
| | | EType | | (n) Value for the classification of the optical object in E-band (Note 3)
|
| | | Omag | mag | (n) O-magnitude of the optical counterpart (from APM) |
| | | Otype | | (n) Value for the classification of the optical object in O-band (Note 4)
|
| | | A(E) | mag | (n) Extinction correction (Note 5)
|
| | | dRO | arcsec | (n) Angular distance between radio and optical position |
ALL cols | | | |