| Home | Browser | Access | Login | FreeSQL |
|
Glossary of VULCAN attributes |
|---|
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 |
X | ||||||||
|---|---|---|---|---|---|---|---|---|
| Name | Schema Table | Database | Description | Type | Length | Unit | Default Value | Unified Content Descriptor |
| x | allwise_sc | WISE | Unit sphere position x value | float | 8 | |||
| x_coadd | twomass_xsc | TWOMASS | x (cross-scan) position (coadd coord.). | real | 4 | arcsec | pos.cartesian;instr.det | |
| x_scan | twomass_psc | TWOMASS | Mean cross-scan focal plane position of the source in the Universal scan (U-scan) coordinate system. | real | 4 | arcsec | pos.cartesian;instr.det | |
| xph | twomass_scn | TWOMASS | Special flag indicating whether or not another photometric problem, not obviously cloud related, was found in the scan after comparing its photometry to that of overlapping scans. | smallint | 2 | meta.code | ||
| xph | twomass_sixx2_scn | TWOMASS | downgrade from DB photom. overlap compar. (non-cloud) (0|1) | smallint | 2 | |||
| xPixSize | CurrentAstrometry | VULCANiDR | Angular size of pixels in X | real | 4 | Arcseconds | -0.9999995e9 | pos.angDistance |
| xPos | Detection | PS1DR2 | PSF x center location. | real | 4 | raw pixels | -999 | |
| xPosErr | Detection | PS1DR2 | Error in PSF x center location. | real | 4 | raw pixels | -999 | |
| xscprox | allwise_sc | WISE | 2MASS Extended Source Catalog (XSC) proximity. This column gives the distance between the WISE source position and the position of a nearby 2MASS XSC source, if the separation is less than 1.1 times the Ks isophotal radius size of the XSC source. This identifies WISE sources that are identically the 2MASS XSC source as well as WISE sources that are fragments of large galaxies. This column is "null" if there is no 2MASS XSC source in proximity to the WISE source. If xscprox<2" and is not "null", the WISE source is assumed to be the galaxy detected by 2MASS. The WISE source is measured using an elliptical aperture with a size, shape and orientation that is scaled from that of the 2MASS XSC source. The elliptical aperture parameters and photometry are given in the w?rsemi, w?pa, w?ba, w?gmag and w?gerr columns. | float | 8 | arcsec | ||
| xscprox | wise_allskysc | WISE | 2MASS Extended Source Catalog (XSC) proximity. This column gives the distance between the WISE source position and the position of a nearby 2MASS XSC source, if the separation is less than 1.1 times the Ks isophotal radius size of the XSC source. This identifies WISE sources that are identically the 2MASS XSC source as well as WISE sources that are fragments of large galaxies. This column is default if there is no 2MASS XSC source in proximity to the WISE source. |
real | 4 | arcsec | -0.9999995e9 | |
| xscprox | wise_prelimsc | WISE | Distance between the WISE source position and the position of a nearby 2MASS XSC source, if the separation is less than 1.1 times the Ks isophotal radius size of the XSC source This column is default if there is no 2MASS XSC source in proximity to the WISE source |
real | 4 | arcsec | -0.9999995e9 | |