| 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 |
N | ||||||||
|---|---|---|---|---|---|---|---|---|
| Name | Schema Table | Database | Description | Type | Length | Unit | Default Value | Unified Content Descriptor |
| n_2mass | allwise_sc | WISE | The number of 2MASS PSC entries found within a 3" radius of the WISE source position. If more than one 2MASS PSC falls within 3" of the WISE position, the closest 2MASS PSC entry is listed. This column is zero if there is no associated 2MASS PSC source. | int | 4 | |||
| n_2mass | wise_allskysc | WISE | The number of 2MASS PSC entries found within a 3" radius of the WISE source position. If more than one 2MASS PSC falls within 3" of the WISE position, the closest 2MASS PSC entry is listed. This column is default if there is no associated 2MASS PSC source |
smallint | 2 | -9999 | ||
| n_2mass | wise_prelimsc | WISE | The number of 2MASS PSC entries found within a 3" radius of the WISE source position If more than one 2MASS PSC falls within 3" of the WISE position, the closest 2MASS PSC entry is listed. This column is default if there is no associated 2MASS PSC source |
smallint | 2 | -9999 | ||
| n_aw | catwise_2020, catwise_prelim | WISE | number of AllWISE matches within 2.75 asec | int | 4 | |||
| n_blank | twomass_xsc | TWOMASS | number of blanked source records. | smallint | 2 | meta.number | ||
| n_ext | twomass_scn | TWOMASS | Number of regular extended sources detected in scan. | int | 4 | meta.number | ||
| n_ext | twomass_sixx2_scn | TWOMASS | number of regular extended sources detected in scan | int | 4 | |||
| n_sub | twomass_xsc | TWOMASS | number of subtracted source records. | smallint | 2 | meta.number | ||
| na | allwise_sc | WISE | Active deblending flag. Indicates if a single detection was split into multiple sources in the process of profile-fitting: 0 - the source is not actively deblended; 1 - the source is actively deblended. | int | 4 | |||
| na | catwise_2020, catwise_prelim | WISE | number of actively deblended components | int | 4 | |||
| na | wise_allskysc | WISE | Active deblending flag. Indicates if a single detection was split into multiple sources in the process of profile-fitting: 0 - the source is not actively deblended; 1 - the source is actively deblended. |
smallint | 2 | -9999 | ||
| na | wise_prelimsc | WISE | Active deblending flag Indicates if a single detection was split into multiple sources in the process of profile-fitting: 0 - the source is not actively deblended; 1 - the source is actively deblended. |
smallint | 2 | -9999 | ||
| name | Filter | VULCANiDR | The name of the filter, eg. "MKO J", "K short" etc. | varchar | 16 | meta.note | ||
| name | Survey | VULCANiDR | The short name for the survey | varchar | 128 | ?? | ||
| nb | allwise_sc | WISE | Number of PSF components used simultaneously in the profile-fitting for this source. This number includes the source itself, so the minimum value of nb is "1". Nb is greater than "1" when the source is fit concurrently with other nearby detections (passive deblending), or when a single source is split into two components during the fitting process (active deblending). | int | 4 | |||
| nb | catwise_2020, catwise_prelim | WISE | number of blend components used in each fit | int | 4 | |||
| nb | wise_allskysc | WISE | Number of PSF components used simultaneously in the profile-fitting for this source. This number includes the source itself, so the minimum value of nb is "1". Nb is greater than "1" when the source is fit concurrently with other nearby detections (passive deblending), or when a single source is split into two components during the fitting process (active deblending). |
smallint | 2 | -9999 | ||
| nb | wise_prelimsc | WISE | Number of PSF components used simultaneously in the profile-fitting for this source This number includes the source itself, so the minimum value of nb is "1". Nb is greater than "1" when the source is fit concurrently with other nearby detections (passive deblending), or when a single source is split into two components during the fitting process (active deblending). |
smallint | 2 | -9999 | ||
| ndet | twomass_psc | TWOMASS | Frame detection statistics. | varchar | 6 | meta.number | ||
| ndet | twomass_sixx2_psc | TWOMASS | number of >3-sig. ap. mag measurements, # possible (jjhhkk) | varchar | 6 | |||
| nDetections | ObjectThin | PS1DR2 | Number of single epoch detections in all filters. | smallint | 2 | -999 | ||
| neighboursSchema | Programme | VULCANiDR | Script file that describes the neighbour tables schema for this programme | varchar | 64 | ?? | ||
| neighbourTable | RequiredNeighbours | VULCANiDR | the name of the neighbour join table | varchar | 256 | meta.id;meta.dataset | ||
| new_matched_transits | gaia_source | GAIADR3 | The number of transits newly incorporated into an existing source in the current cycle | smallint | 2 | meta.number | ||
| nFrames | allSkyNIRSource | VULCANiDR | No. of frames used for this proper motion measurement | smallint | 2 | 0 | meta.number | |
| ng | ObjectThin | PS1DR2 | Number of single epoch detections in g filter. | smallint | 2 | -999 | ||
| ngrp | allwise_sc | WISE | Excess number of positionally associated duplicate resolution groups in which this extractions was included. Values of ngrp>0 indicate that the source was associated with more than one possible group. CAUTION: In the All-Sky Release Catalog and 3-Band Cryo Source Working Database, this column indicated the total number of groups with which a source was associated. In the AllWISE Catalog and Reject Table, ngrp is the total number of groups minus one. | smallint | 2 | |||
| ngrp | wise_allskysc | WISE | Number of positionally associated duplicate resolution groups in which this extractions was included. | smallint | 2 | -9999 | ||
| ni | ObjectThin | PS1DR2 | Number of single epoch detections in i filter. | smallint | 2 | -999 | ||
| night_key | twomass_xsc | TWOMASS | key to night data record in "scan DB". | smallint | 2 | meta.id | ||
| nIters | catwise_2020, catwise_prelim | WISE | number of chi-square-minimization iterations | int | 4 | |||
| nIters_pm | catwise_2020, catwise_prelim | WISE | number of chi-square-minimization iterations | int | 4 | |||
| non_single_star | gaia_source | GAIADR3 | Flag indicating the availability of additional information in the various Non-Single Star tables | smallint | 2 | meta.code.status | ||
| nopt_mchs | twomass_psc | TWOMASS | The number of USNO-A2.0 or Tycho 2 optical sources found within a 5" radius of the TWOMASS position. | smallint | 2 | meta.number | ||
| nPass | RequiredFilters | VULCANiDR | the number of passes that will be made | smallint | 2 | meta.number | ||
| nr | ObjectThin | PS1DR2 | Number of single epoch detections in r filter. | smallint | 2 | -999 | ||
| nStackDetections | ObjectThin | PS1DR2 | Number of stack detections. | smallint | 2 | -999 | ||
| nStackObjectRows | ObjectThin | PS1DR2 | Number of independent StackObjectThin rows associated with this object. | smallint | 2 | -999 | ||
| nSteps | catwise_2020, catwise_prelim | WISE | number of steps in all iterations | int | 4 | |||
| nSteps_pm | catwise_2020, catwise_prelim | WISE | number of steps in all iterations | int | 4 | |||
| nu_eff_used_in_astrometry | gaia_source | GAIADR3 | Effective wavenumber of the source used in the astrometric solution | real | 4 | micron^-1 | em.wavenumber | |
| ny | ObjectThin | PS1DR2 | Number of single epoch detections in y filter. | smallint | 2 | -999 | ||
| nz | ObjectThin | PS1DR2 | Number of single epoch detections in z filter. | smallint | 2 | -999 | ||