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Details - VVV/VIRAC: proper motion catalog

Title VVV/VIRAC: proper motion catalog
Version 1
Data Provider/P.I. Dante Minniti
Data Collection VVV
Data Release DR4.1
Submission Date 2019-06-12
Publication Date 2019-06-13
Obsolete Date 2024-12-18
Description The VVV Infrared Astrometric Catalog (VIRAC) collects the proper motion measurements based on the VVV survey data. It provides ZYJHKs bandmerged magnitudes for each star. For the multi-epoch observations in the Ks band the magnitude is a mean value. Typical precision of the pm measurements are of 0.67 mas/yr for bright stars (11<Ks<14).
Please refer to the full data release description for further information.
Telescope ESO-VISTA
Instrument VIRCAM
Technique of Observation IMAGE,JITTER
Start of Observations 55,228.136 (2010-02-01T15:16:45)
End of Observations 57,291.072 (2015-09-26T13:44:36)
Filter Set/bands Ks Z Y J H
Sky Solid Angle 560
Number of Records 312587642
Number of Columns 45
Reference 2018MNRAS.474.1826S
Acknowledgment Policy Please include the following acknowledgment in any published material that makes use of this data product: Based on data obtained from the ESO Science Archive Facility with DOI: https://doi.org/10.18727/archive/67
Position Name Description Data Type Data Size UCD Physical Unit
1 sourceid unique source identifier INT32 1 meta.id;meta.main
2 ra RA from astrometric fit at epoch 2012.0 DOUBLE 1 pos.eq.ra;meta.main deg
3 de Dec from astrometric fit at epoch 2012.0 DOUBLE 1 pos.eq.dec;meta.main deg
4 mag Ks band magnitude FLOAT 1 phot.mag;em.IR.K mag
5 emag Error on Ks band magnitude FLOAT 1 stat.error;phot.mag;em.IR.K mag
6 ell Mean Ks band ellipticity FLOAT 1 src.ellipticity
7 pm Total proper motion DOUBLE 1 pos.pm mas/yr
8 epm Error on total proper motion DOUBLE 1 stat.error;pos.pm mas/yr
9 rapm Proper motion in RAcosDec DOUBLE 1 pos.pm;pos.eq.ra mas/yr
10 erapm Error on proper motion in RAcosDec DOUBLE 1 stat.error;pos.pm;pos.eq.ra mas/yr
11 depm Proper motion in Dec DOUBLE 1 pos.pm;pos.eq.dec mas/yr
12 edepm Error on proper motion in Dec DOUBLE 1 stat.error;pos.pm;pos.eq.dec mas/yr
13 epochs Total number of epochs INT32 1 meta.number;time.epoch
14 dets Number of pawprint sets/epoch groups INT32 1 meta.number
15 stellardets Number of stellar pawprint sets INT32 1 meta.number
16 pawprintdets Number of pawprint sets detected INT32 1 meta.number
17 n_epmf_0 Number of '0' pm error flags INT32 1 meta.number
18 n_epmf_1 Number of '1' pm error flags INT32 1 meta.number
19 n_epmf_2 Number of '2' pm error flags INT32 1 meta.number
20 n_epmf_3 Number of '3' pm error flags INT32 1 meta.number
21 reliable Reliability flag: '1' is reliable INT32 1 meta.code.class
22 Zmag VVV DR4 Z band magnitude. FLOAT 1 phot.mag;em.opt.I mag
23 eZmag Error on VVV DR4 Z band magnitude. FLOAT 1 stat.error;phot.mag;em.opt.I mag
24 Zell Ellipticity of Z band detection. FLOAT 1 src.ellipticity;em.opt.I
25 Zclass Z band morphological classification INT32 1 src.morph.param;em.opt.I
26 Zsep Distance to Z band detection FLOAT 1 pos.angDistance;em.opt.I arcsec
27 Ymag VVV DR4 Y band magnitude. FLOAT 1 phot.mag;em.IR.NIR mag
28 eYmag Error on VVV DR4 Y band magnitude. FLOAT 1 stat.error;phot.mag;em.IR.NIR mag
29 Yell Ellipticity of Y band detection. FLOAT 1 src.ellipticity;em.IR.NIR
30 Yclass Y band morphological classification INT32 1 src.morph.param;em.IR.NIR
31 Ysep Distance to Y band detection FLOAT 1 pos.angDistance;em.IR.NIR arcsec
32 Jmag VVV DR4 J band magnitude. FLOAT 1 phot.mag;em.IR.J mag
33 eJmag Error on VVV DR4 J band magnitude. FLOAT 1 stat.error;phot.mag;em.IR.J mag
34 Jell Ellipticity of J band detection. FLOAT 1 src.ellipticity;em.IR.J
35 Jclass J band morphological classification INT32 1 src.morph.param;em.IR.J
36 Jsep Distance to J band detection FLOAT 1 pos.angDistance;em.IR.J arcsec
37 Hmag VVV DR4 H band magnitude. FLOAT 1 phot.mag;em.IR.H mag
38 eHmag Error on VVV DR4 H band magnitude. FLOAT 1 stat.error;phot.mag;em.IR.H mag
39 Hell Ellipticity of H band detection. FLOAT 1 src.ellipticity;em.IR.H
40 Hclass H band morphological classification INT32 1 src.morph.param;em.IR.H
41 Hsep Distance to H band detection FLOAT 1 pos.angDistance;em.IR.H arcsec
42 Zdetflag Z detection flag, 1=not detected, 2=not observed INT16 1 meta.code.qual
43 Ydetflag Y detection flag, 1=not detected, 2=not observed INT16 1 meta.code.qual
44 Jdetflag J detection flag, 1=not detected, 2=not observed INT16 1 meta.code.qual
45 Hdetflag H detection flag, 1=not detected, 2=not observed INT16 1 meta.code.qual