Description
Convenience table with object where no matching UCAC4 id could be assigned
Columns
| Name | Type | UCD | Unit | Description |
|---|---|---|---|---|
| source_id | long |
meta.id meta.main |
Source identification number. The number is constructed as follows: process_id x 10000000 + source number in the image. |
|
| process_id | int | meta.id |
Process identification number |
|
| scan_id | int | meta.id |
Scan identification number |
|
| exposure_id | int | meta.id |
Exposure identification number |
|
| plate_id | int | meta.id |
Plate identification number |
|
| archive_id | int | meta.id |
Archive identification number |
|
| annular_bin | short | meta.code |
Annular bin (1-9) where the source belongs (bin 1 is in the center, bin 9 is at the edge) |
|
| dist_center | double | pos.distance | pix |
Distance of the source from plate center |
| dist_edge | double | pos.distance | pix |
Distance of the source from plate edge |
| sextractor_flags | short | meta.code |
Flags given by SExtractor |
|
| raj2000 | double | pos.eq.ra | deg |
Right ascension of the source (equinox J2000) |
| dej2000 | double | pos.eq.dec | deg |
Declination of the source (equinox J2000) |
| x_sphere | double | pos.cartesian.x |
Source x-coordinate on the unit sphere |
|
| y_sphere | double | pos.cartesian.y |
Source y-coordinate on the unit sphere |
|
| z_sphere | double | pos.cartesian.z |
Source z-coordinate on the unit sphere |
|
| healpix256 | int | pos.healpix |
Source HEALPix number (nside=256, nested ordering) |
|
| raj2000_wcs | double | pos.eq.ra | deg |
Right ascension of the source based on WCS solution of the plate |
| dej2000_wcs | double | pos.eq.dec | deg |
Declination of the source based on WCS solution of the plate |
| raj2000_sub | double | pos.eq.ra | deg |
Right ascension of the source based on improved astrometric solution in a sub-field |
| dej2000_sub | double | pos.eq.dec | deg |
Declination of the source based on improved astrometric solution in a sub-field |
| raerr_sub | float |
stat.error pos.eq.ra |
arcsec |
Error for raj2000_sub |
| decerr_sub | float |
stat.error pos.eq.dec |
arcsec |
Error for dej2000_sub |
| astrom_sub_grid | short | meta.number |
Grid level for the finest sub-field where improved astrometric solution was applied to the source coordinates. Grid level is expressed as the number of divisions of an image in one axis. Possible values: 2, 4, 8, 16, 32. |
|
| astrom_sub_id | int | meta.id |
Hierarchical sub-field number, corresponding to the sub-field where improved astrometric solution was applied to the source coordinates. See the astrom_sub table for details. |
|
| nn_dist | float | pos.angDistance | arcsec |
Distance to the nearest neighbor among extracted sources |
| zenith_angle | float | pos.az.zd |
Zenith angle of the source |
|
| airmass | float | obs.airMass |
Path length for light rays from a celestial source to pass through the atmosphere |
|
| natmag | float |
phot.mag em.opt |
mag |
Calibrated magnitude of the source in the plate natural photometric system |
| natmagerr | float |
stat.error phot.mag em.opt |
mag |
Estimated error on the calibrated magnitude of the source in the plate natural photometric system |
| bmag | float |
phot.mag em.opt.B |
mag |
Calibrated B magnitude of the source |
| bmagerr | float |
stat.error phot.mag em.opt.B |
mag |
Estimated error on the calibrated B magnitude of the source |
| vmag | float |
phot.mag em.opt.V |
mag |
Calibrated V magnitude of the source |
| vmagerr | float |
stat.error phot.mag em.opt.V |
mag |
Estimated error on the calibrated V magnitude of the source |
| natmag_plate | float |
phot.mag em.opt |
mag |
Magnitude of the source in the plate natural photometric system, obtained through photometric calibration for the whole plate |
| natmagerr_plate | float |
stat.error phot.mag em.opt |
mag |
Error of the magnitude of the source in the plate natural photometric system, obtained through photometric calibration for the whole plate |
| phot_plate_flags | short | meta.code |
Flag of photometric calibration: 0 - source is within the magnitude range of calibration stars; 1 - source is brighter than the brightest calibration star in the image; 2 - source is fainter than the plate faint limit |
|
| natmag_correction | float |
phot.mag em.opt arith.diff |
mag |
Correction applied to the source magnitude in the plate natural photometric system, obtained through improved photometric calibration in sub-fields |
| natmag_sub | float |
phot.mag em.opt |
mag |
Magnitude of the source in the plate natural photometric system, obtained through improved photometric calibration in sub-fields |
| natmagerr_sub | float |
stat.error phot.mag em.opt |
mag |
Error of the magnitude of the source in the plate natural photometric system, obtained through improved photometric calibration in sub-fields |
| natmag_residual | float |
phot.mag em.opt arith.diff |
mag |
Residual of the source magnitude in the plate natural photometric system, after improved photometric calibration in sub-fields |
| phot_sub_grid | short | meta.number |
Grid level for the finest sub-field where improved photometric calibration was applied to the source. Grid level is expressed as the number of divisions of an image in one axis. Possible values: 2, 4, 8, 16, 32. |
|
| phot_sub_id | int | meta.id |
Hierarchical sub-field number, corresponding to the finest sub-field where improved photometric calibration was applied to the source. See the phot_sub table for details. |
|
| phot_sub_flags | short | meta.code |
Flag of improved photometric calibration in the sub-field: 0 - source is within the magnitude range of calibration stars; 1 - source is brighter than the brightest calibration star in the sub-field; 2 - source is fainter than the faintest calibration star in the sub-field |
|
| phot_calib_flags | short | meta.code |
Flag for photometric calibration stars: 0 - source is not a calibration star; 1 - source is a valid calibration star; 2 - source was found to be an outlier of the photometric calibration curve |
|
| color_term | float | stat.fit.param |
Color term of the plate, characterizing color response of the emulsion and filter used |
|
| color_bv | float |
phot.color em.opt.B em.opt.V |
mag |
B-V color index of the source, based on the UCAC4 or Tycho-2 catalogue |
| cat_natmag | float |
phot.mag em.opt |
mag |
Magnitude of the source in the plate natural photometric system, B+color_term×(B-V), based on the UCAC4 or Tycho-2 catalogue |
| match_radius | float | pos.angDistance | arcsec |
Radius in the sky plane that was used to cross-match extracted sources with external catalogues |
| tycho2_id | char | meta.id.cross |
Tycho 2 identifier |
|
| tycho2_id_pad | char | meta.id.cross |
Tycho 2 identifier padded |
|
| tycho2_ra | double | pos.eq.ra | deg |
Right ascension from the Tycho-2 catalogue |
| tycho2_dec | double | pos.eq.dec | deg |
Declination from the Tycho-2 catalogue |
| tycho2_btmag | float |
phot.mag em.opt.B |
mag |
BT magnitude from the Tycho-2 catalogue |
| tycho2_vtmag | float |
phot.mag em.opt.V |
mag |
VT magnitude from the Tycho-2 catalogue |
| tycho2_btmagerr | float |
stat.error phot.mag em.opt.BT |
mag |
Estimated error on the calibrated magnitude vs BT mag Tycho-2 catalogue |
| tycho2_vtmagerr | float |
stat.error phot.mag em.opt.VT |
mag |
Estimated error on the calibrated magnitude vs VT magTycho-2 catalogue |
| tycho2_hip | int | meta.id.cross |
Identification of the matched HIPPARCOS catalogue object |
|
| tycho2_dist | float | pos.angDistance | arcsec |
Distance between the source and the Tycho-2 catalogue object |
| tycho2_dist2 | float | pos.angDistance | arcsec |
Distance between the source and second nearest object of the Tycho-2 catalogue |
| tycho2_nn_dist | float | pos.angDistance | arcsec |
Angular distance between the matched object and its nearest neighbor in the Tycho-2 catalogue |
| ucac4_id | char | meta.id.cross |
Identification of the matched UCAC4 catalogue object |
|
| ucac4_ra | double | pos.eq.ra | deg |
Right ascension from the UCAC4 catalogue |
| ucac4_dec | double | pos.eq.dec | deg |
Declination from the UCAC4 catalogue |
| ucac4_bmag | float |
phot.mag em.opt.B |
mag |
B magnitude from the UCAC4 catalogue |
| ucac4_vmag | float |
phot.mag em.opt.V |
mag |
V magnitude from the UCAC4 catalogue |
| ucac4_bmagerr | float |
stat.error phot.mag em.opt.B |
mag |
Estimated error on the calibrated magnitude vs B mag UCAC4 catalogue |
| ucac4_vmagerr | float |
stat.error phot.mag em.opt.V |
mag |
Estimated error on the calibrated V magnitude vs UCAC4 catalogue |
| ucac4_dist | float | pos.angDistance | arcsec |
Distance between the source and the UCAC4 catalogue object |
| ucac4_dist2 | float | pos.angDistance | arcsec |
Distance between the source and the second nearest neighbour object in the UCAC4 catalogue |
| ucac4_nn_dist | float | pos.angDistance | arcsec |
Angular distance between the matched object and its nearest neighbor in the UCAC4 catalogue |
| apass_ra | double | pos.eq.ra | deg |
Right ascension from the APASS catalogue |
| apass_dec | double | pos.eq.dec | deg |
Declination from the APASS catalogue |
| apass_bmag | float |
phot.mag em.opt.B |
mag |
B magnitude from the APASS catalogue |
| apass_vmag | float |
phot.mag em.opt.V |
mag |
V magnitude from the APASS catalogue |
| apass_bmagerr | float |
stat.error phot.mag em.opt.B |
mag |
Estimated error on the calibrated magnitude vs B mag APASS catalogue |
| apass_vmagerr | float |
stat.error phot.mag em.opt.V |
mag |
Estimated error on the calibrated magnitude vs V mag APASS catalogue |
| apass_dist | float | pos.angDistance | arcsec |
Distance between the source and the APASS catalogue object |
| apass_dist2 | float | pos.angDistance | arcsec |
Distance between the source and the second nearest neighbour object in the APASS catalogue |
| apass_nn_dist | float | pos.angDistance | arcsec |
Angular distance between the matched object and its nearest neighbor in the APASS DR9 catalogue |
| timestamp_insert | char | time.creation | Time[yyyy-mm-dd hh:mm:ss] |
Timestamp of insert |
| timestamp_update | char | time.creation | Time[yyyy-mm-dd hh:mm:ss] |
Timestamp of last update |
| pos | char | meta.number | (radians,radians) |
GIS index for (ra,dec) |