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Details - VIRAC2 source catalogue

Title VIRAC2 source catalogue
Version 1
Data Provider/P.I. Dante Minniti
Data Collection VVVX
Data Release DR3
Submission Date 2024-09-24
Publication Date 2024-12-17
Description Source catalogue including positions, proper motions and mean photometry covering ~560 square degrees of the southern Galactic disc and bulge in the Z, Y, J, H, and Ks bandpasses, using data obtained between 30th January 2010 to 1st September 2019.
Please refer to the full data release description for further information.
Telescope ESO-VISTA
Instrument VIRCAM
Technique of Observation IMAGE,JITTER
Start of Observations 55,226.223 (2010-01-30T18:21:48)
End of Observations 58,727.107 (2019-09-01T16:34:46)
Filter Set/bands Z Y J H Ks
Sky Solid Angle 591.177
Number of Records 545346533
Number of Columns 87
Reference
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/68
Position Name Description Data Type Data Size UCD Physical Unit
1 sourceid unique source identified INT64 1 meta.id;meta.main
2 astfit_epochs number of epochs used for astrometric solution INT16 1 meta.number;time.epoch
3 astfit_params number of astrometric solution parameters INT16 1 meta.number
4 duplicate flag indicating a likely duplicate entry INT16 1 meta.code
5 ref_epoch astrometric reference epoch DOUBLE 1 time.epoch yr
6 ra right ascension DOUBLE 1 pos.eq.ra;meta.main deg
7 ra_error uncertainty on right ascension DOUBLE 1 stat.error;pos.eq.ra mas
8 de declination DOUBLE 1 pos.eq.dec;meta.main deg
9 de_error uncertainty on declination DOUBLE 1 stat.error;pos.eq.dec mas
10 parallax trigonometric parallax DOUBLE 1 pos.parallax.trig mas
11 parallax_error uncertainty on trigonometric parallax DOUBLE 1 stat.error;pos.parallax.trig mas
12 pmra proper motion in right ascension DOUBLE 1 pos.pm;pos.eq.ra mas/yr
13 pmra_error uncertainty on proper motion in right ascension DOUBLE 1 stat.error;pos.pm;pos.eq.ra mas/yr
14 pmde proper motion in declination DOUBLE 1 pos.pm;pos.eq.dec mas/yr
15 pmde_error uncertainty on proper motion in declination DOUBLE 1 stat.error;pos.pm;pos.eq.dec mas/yr
16 ra_de_corr correlation between ra and dec FLOAT 1 stat.correlation
17 ra_parallax_corr correlation between ra and parallax FLOAT 1 stat.correlation
18 ra_pmra_corr correlation between ra and proper motion in ra FLOAT 1 stat.correlation
19 ra_pmde_corr correlation between ra and proper motion in dec FLOAT 1 stat.correlation
20 de_parallax_corr correlation between dec and parallax FLOAT 1 stat.correlation
21 de_pmra_corr correlation between dec and proper motion in ra FLOAT 1 stat.correlation
22 de_pmde_corr correlation between dec and proper motion in dec FLOAT 1 stat.correlation
23 parallax_pmra_corr correlation between parallax and proper motion in ra FLOAT 1 stat.correlation
24 parallax_pmde_corr correlation between parallax and proper motion in dec FLOAT 1 stat.correlation
25 pmra_pmde_corr correlation between proper motion in ra and proper motion in dec FLOAT 1 stat.correlation
26 chisq chi squared of astrometric fit FLOAT 1 stat.fit.chi2
27 uwe unit weight error of astrometric fit FLOAT 1 stat.fit.goodness
28 phot_z_mean_mag mean Z band magnitude FLOAT 1 phot.mag;stat.mean;em.opt.I mag
29 phot_z_std_mag standard deviation of Z band magnitude FLOAT 1 stat.stdev;phot.mag;em.opt.I mag
30 phot_z_n_epochs number of Z band epochs contributing to statistics INT16 1 meta.number
31 z_n_obs approximate number of Z band observations INT16 1 meta.number
32 z_n_det number of Z band detections INT16 1 meta.number
33 z_n_amb number of Z band detections shared with another source INT16 1 meta.number
34 phot_y_mean_mag mean Y band magnitude FLOAT 1 phot.mag;stat.mean;em.IR.NIR mag
35 phot_y_std_mag standard deviation of Y band magnitude FLOAT 1 stat.stdev;phot.mag;em.IR.NIR mag
36 phot_y_n_epochs number of Y band epochs contributing to statistics INT16 1 meta.number
37 y_n_obs approximate number of Y band observations INT16 1 meta.number
38 y_n_det number of Y band detections INT16 1 meta.number
39 y_n_amb number of Y band detections shared with another source INT16 1 meta.number
40 phot_j_mean_mag mean J band magnitude FLOAT 1 phot.mag;stat.mean;em.IR.J mag
41 phot_j_std_mag standard deviation of J band magnitude FLOAT 1 stat.stdev;phot.mag;em.IR.J mag
42 phot_j_n_epochs number of J band epochs contributing to statistics INT16 1 meta.number
43 j_n_obs approximate number of J band observations INT16 1 meta.number
44 j_n_det number of J band detections INT16 1 meta.number
45 j_n_amb number of J band detections shared with another source INT16 1 meta.number
46 phot_h_mean_mag mean H band magnitude FLOAT 1 phot.mag;stat.mean;em.IR.H mag
47 phot_h_std_mag standard deviation of H band magnitude FLOAT 1 stat.stdev;phot.mag;em.IR.H mag
48 phot_h_n_epochs number of H band epochs contributing to statistics INT16 1 meta.number
49 h_n_obs approximate number of H band observations INT16 1 meta.number
50 h_n_det number of H band detections INT16 1 meta.number
51 h_n_amb number of H band detections shared with another source INT16 1 meta.number
52 phot_ks_mean_mag mean Ks band magnitude FLOAT 1 phot.mag;stat.mean;em.IR.K mag
53 phot_ks_std_mag standard deviation of Ks band magnitude FLOAT 1 stat.stdev;phot.mag;em.IR.K mag
54 phot_ks_n_epochs number of Ks band epochs contributing to statistics INT16 1 meta.number
55 ks_n_obs approximate number of Ks band observations INT16 1 meta.number
56 ks_n_det number of Ks band detections INT16 1 meta.number
57 ks_n_amb number of Ks band detections shared with another source INT16 1 meta.number
58 ks_first_epoch epoch of first Ks band detection DOUBLE 1 time.epoch;stat.min d
59 ks_last_epoch epoch of last Ks band detection DOUBLE 1 time.epoch;stat.max d
60 ks_skew skewness of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K
61 ks_p0 0th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
62 ks_p1 1st percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
63 ks_p2 2nd percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
64 ks_p4 4th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
65 ks_p5 5th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
66 ks_p8 8th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
67 ks_p16 16th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
68 ks_p25 25th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
69 ks_p32 32nd percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
70 ks_p50 50th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
71 ks_p68 68th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
72 ks_p75 75th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
73 ks_p84 84th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
74 ks_p92 92nd percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
75 ks_p95 95th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
76 ks_p96 96th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
77 ks_p98 98th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
78 ks_p99 99th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
79 ks_p100 100th percentile of Ks band magnitudes FLOAT 1 stat.value;phot.mag;em.IR.K mag
80 ks_mad median absolute deviation from the median Ks band magnitude FLOAT 1 stat.value;phot.mag;em.IR.K mag
81 ks_med_err median uncertainty of Ks band magnitudes FLOAT 1 stat.median;stat.error;phot.mag;em.IR.K mag
82 ks_Stetson_I Stetson I index for Ks band magnitudes DOUBLE 1 src.var.index
83 ks_Stetson_J Stetson J index for Ks band magnitudes DOUBLE 1 src.var.index
84 ks_Stetson_K Stetson K index for Ks band magnitudes DOUBLE 1 src.var.index
85 ks_Stetson_group_count number of observation groups used for Stetson indices INT32 1 meta.number
86 ks_eta von Neumann eta index DOUBLE 1 src.var.index
87 ks_eta_f modified von Neumann eta index DOUBLE 1 src.var.index