| Show | Sort | Column | Constraint | Explain (UCD) |
| | | recno | | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD) |
| | | RX | (char) | Name of the X-ray source (meta.id;meta.main) (ID_MAIN) |
| | | OC | (char) | [+] + for proposed optical counterpart (meta.code) (CODE_MISC) |
| | | NOpt | | Running number of objects visible in the error circle ([ZEH2003] RX JHHMM.m+DDMM NN>) (meta.id) (ID_NUMBER) |
| | | n_NOpt | (char) | [P] (meta.note) (NOTE) |
| | | RA2000 | "h:m:s" | (n)(i) Right ascension (2000.0) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN) |
| | | DE2000 | "d:m:s" | (n)(i) Declination (2000.0) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| | | oRA | arcsec | X-ray position - optical position in right ascension (pos.eq.ra;arith.diff) (POS_EQ_RA_OFF) |
| | | oDE | arcsec | X-ray position - optical position in declination (pos.eq.dec;arith.diff) (POS_EQ_DEC_OFF) |
| | | rXO | arcsec | Distance between X-ray and optical position (pos.angDistance) (POS_ANG_DIST_GENERAL) |
| | | l_Bmag | (char) | Limit flag on Bmag (Note 1)
(meta.code.error) (CODE_LIMIT) |
| | | Bmag | mag | (n) Optical magnitude B (no entry means no B magnitude available) (phot.mag;em.opt.B) (PHOT_PHG_B) |
| | | n_Bmag | (char) | [uep:] Note on Bmag (Note 2)
(meta.note) (NOTE) |
| | | B-R | mag | (n) B-R colour index from USNA-A 2.0 Catalog (I/252) (phot.color;em.opt.B;em.opt.R) (PHOT_PHG_B-R) |
| | | Class | (char) | Classification from objective prism spectrum (Note 3)
(src.class) (CLASS_OBJECT) |
| | | Note | (char) | Note when no position (meta.note) (NOTE) |
ALL cols | | | |