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Glossary of VULCAN attributes |
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This Glossary alphabetically lists all attributes used in the VULCANv20260525 database(s) held in the ASNIR. If you would like to have more information about the schema tables please use the VULCANv20260525 Schema Browser (other Browser versions). |
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
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| Name | Schema Table | Database | Description | Type | Length | Unit | Default Value | Unified Content Descriptor |
| e_score | twomass_xsc | TWOMASS | extended score: 1(extended) < e_score < 2(point-like). | real | 4 | meta.code | ||
| ebpminrp_gspphot | gaia_source | GAIADR3 | Reddening E(BP-RP) from GSP-Phot Aeneas best library using BP/RP spectra | real | 4 | mag | phot.color.excess | |
| ebpminrp_gspphot_lower | gaia_source | GAIADR3 | Lower confidence level (16%) of reddening E(BP-RP) from GSP-Phot Aeneas best library using BP/RP spectra | real | 4 | mag | phot.color.excess;stat.min | |
| ebpminrp_gspphot_upper | gaia_source | GAIADR3 | Upper confidence level (84%) of reddening E(BP-RP) from GSP-Phot Aeneas best library using BP/RP spectra | real | 4 | mag | phot.color.excess;stat.max | |
| eBV | allSkyNIRSource | VULCANiDR | The galactic dust extinction value measured from the Schlegel, Finkbeiner & Davis (1998) maps. This uses the correction given in Bonifacio, Monai & Beers (2000). This correction reduces the extinction value in regions of high extinction (E(B-V)>0.1) | real | 4 | -0.9999995e9 | phys.absorption.gal | |
| ecl_lat | gaia_source | GAIADR3 | Ecliptic latitude | float | 8 | degrees | pos.ecliptic.lat | |
| ecl_lon | gaia_source | GAIADR3 | Ecliptic longitude | float | 8 | degrees | pos.ecliptic.lon | |
| elat | allwise_sc | WISE | Ecliptic latitude computed from the non-moving source fit equatorial position. CAUTION: This coordinate should not be used as an astrometric reference. | float | 8 | deg | ||
| elat | catwise_2020, catwise_prelim | WISE | ecliptic latitude | float | 8 | deg | ||
| elat | wise_allskysc | WISE | Ecliptic latitude. CAUTION: This coordinate should not be used as an astrometric reference. | float | 8 | degrees | ||
| elat | wise_prelimsc | WISE | Ecliptic latitude. CAUTION: This coordinate should not be used as an astrometric reference | float | 8 | degrees | ||
| elat_avg | catwise_2020, catwise_prelim | WISE | averaged ecliptic latitude | float | 8 | deg | ||
| elatSig | catwise_2020, catwise_prelim | WISE | one-sigma uncertainty in elat | real | 4 | arcsec | ||
| ellfit_flg | twomass_xsc | TWOMASS | ellipse fitting contamination flag. | smallint | 2 | meta.code | ||
| elon | allwise_sc | WISE | Ecliptic longitude computed from the non-moving source fit equatorial position. CAUTION: This coordinate should not be used as an astrometric reference. | float | 8 | deg | ||
| elon | catwise_2020, catwise_prelim | WISE | ecliptic longitude | float | 8 | deg | ||
| elon | wise_allskysc | WISE | Ecliptic longitude. CAUTION: This coordinate should not be used as an astrometric reference. | float | 8 | degrees | ||
| elon | wise_prelimsc | WISE | Ecliptic longitude. CAUTION: This coordinate should not be used as an astrometric reference | float | 8 | degrees | ||
| elon_avg | catwise_2020, catwise_prelim | WISE | averaged ecliptic longitude | float | 8 | deg | ||
| elonSig | catwise_2020, catwise_prelim | WISE | one-sigma uncertainty in elon | real | 4 | arcsec | ||
| epoch | allSkyNIRSource | VULCANiDR | Epoch of position measurement | float | 8 | Years | time.epoch | |
| epochMean | ObjectThin | PS1DR2 | Modified Julian Date of the mean epoch corresponding to raMean, decMean (equinox J2000). Note that Gaia DR1 data is sometimes included in the mean position; in those cases, the epochMean value is near the Gaia DR1 epoch 2015.5 = MJD 15023. As a result, epochMean is not necessarily near the mean value of the PS1 measurement dates. | float | 8 | days | -999 | |
| err_ang | twomass_psc | TWOMASS | Position angle on the sky of the semi-major axis of the position uncertainty ellipse (East of North) | smallint | 2 | degrees | pos.posAng | |
| err_ang | twomass_sixx2_psc | TWOMASS | angle of error ellipse major axis (E of N) | smallint | 2 | deg | ||
| err_maj | twomass_psc | TWOMASS | Semi-major axis length of the one sigma position uncertainty ellipse | real | 4 | arcsec | phys.angSize;src | |
| err_maj | twomass_sixx2_psc | TWOMASS | major axis of 1-sigma error ellipse | real | 4 | arcsec | ||
| err_min | twomass_psc | TWOMASS | Semi-minor axis length of the one sigma position uncertainty ellipse | real | 4 | arcsec | phys.angSize;src | |
| err_min | twomass_sixx2_psc | TWOMASS | minor axis of 1-sigma error ellipse | real | 4 | arcsec | ||
| expTime | Detection | PS1DR2 | Exposure time of the frame/exposure. Necessary for converting listed fluxes and magnitudes back to measured ADU counts. | real | 4 | seconds | -999 | |
| ext_flg | allwise_sc | WISE | Extended source flag. This is an integer flag, the value of which indicates whether or not the morphology of a source is consistent with the WISE point spread function in any band, or whether the source is associated with or superimposed on a previously known extended object from the 2MASS Extended Source Catalog (XSC). CAUTION: WISE profile-fit (w?mpro) and standard aperture (w?mag) measurements are optimized for point sources and will systematically underestimate the true flux of resolved objects. If a source entry has ext_flg>0, you may wish to examine the large aperture photometry, or the elliptical aperture photometry which are measured using areas that are scaled from 2MASS XSC morphologies. | int | 4 | |||
The values of the ext_flg indicate the following conditions:
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| ext_flg | wise_allskysc | WISE | Extended source flag. This flag indicates whether or not the morphology of a source is consistent with the WISE point spread function in any band or whether the source is associated with or superimposed on a previously known extended object from the 2MASS Extended Source Catalog (XSC): 0 - The source shape is consistent with a point-source; 1 - The source shape is not consistent with a point-source; 2 - The source falls within the extrapolated isophotal footprint of a 2MASS XSC source; 3 - The profile-fit photometry goodness-of-fit, w?rchi2, is >3.0 in one or more bands, and The source falls within the extrapolated isophotal footprint of a 2MASS XSC source; 4 - The source position falls within 5" of a 2MASS XSC source; 5 - The profile-fit photometry goodness-of-fit, w?rchi2, is >3.0 in one or more bands, and the source position falls within 5" of a 2MASS XSC source. CAUTION: WISE profile-fit (w?mpro) and standard aperture (w?mag) measurements are optimized for point sources and will systematically underestimate the true flux of resolved objects. |
tinyint | 1 | |||
| ext_flg | wise_prelimsc | WISE | Extended source flag This flag indicates whether or not the morphology of a source is consistent with the WISE point spread function in any band: 0 - The source shape is consistent with a point-source; 1 - The source shape is not consistent with a point-source |
tinyint | 1 | |||
| ext_key | twomass_psc | TWOMASS | Unique identification number of the record in the XSC that corresponds to this point source. | int | 4 | meta.id | ||
| ext_key | twomass_xsc | TWOMASS | entry counter (key) number (unique within table). | int | 4 | meta.id | ||
| extinctionMapList | Programme | VULCANiDR | A list of 3D extinction maps that should be matched to this survey | varchar | 32 | NONE | meta.id | |
| extNSigma | Detection | PS1DR2 | An extendedness measure based on the deviation between PSF and Kron (1980) magnitudes, normalized by the PSF magnitude uncertainty. | real | 4 | 0 | ||
| extNum | AstrometricInfo | VULCANiDR | the extension number of this frame | tinyint | 1 | meta.number | ||
| extNum | CurrentAstrometry, MultiframeDetector | VULCANiDR | the extension number of this frame | tinyint | 1 | 0 | meta.number | |
| extProgID | RequiredNeighbours | VULCANiDR | the unique programme ID for second table if there are multiple programmes in the neighbour survey | int | 4 | -99999999 | meta.id | |
| extractor | allSkyNIRFrameSetInfo | VULCANiDR | Extractor used, CASU/SEX | varchar | 4 | |||
| extTableID | ExternalSurveyTable, RequiredNeighbours | VULCANiDR | the unique table ID | int | 4 | meta.id;meta.main | ||
| extTableName | ExternalSurveyTable | VULCANiDR | the name of the table | varchar | 256 | meta.id;meta.dataset | ||