II/343 VIKING catalogue data release 2 (Edge+, 2016)
VIKING (VISTA Kilo-degree Infrared Galaxy Survey): Catalogue Data Release 2
Edge A., Sutherland W., VIKING team
<The Messenger, 154, 32 (2013)>
=2013Msngr.154...32E 2013Msngr.154...32E
=2016yCat.2343....0E 2016yCat.2343....0E
ADC_Keywords: Surveys ; Infrared sources ; Photometry, infrared
Mission_Name: ESO
Abstract:
The VIKING survey with VISTA (ESO programme ID 179.A-2004) is a wide
area (eventually 1500 sq.degrees), intermediate-depth (5-sigma
detection limit J=21 on Vega system) near-infrared imaging survey, in
the five broadband filters Z, Y, J, H, Ks. The planned sky coverage is
at high galactic latitudes, and includes two main stripes
70x10°2 each: one in the South Galactic cap near Dec~-30°,
and one near Dec∼0° in the North galactic cap; in addition, there
are two smaller outrigger patches called GAMA09 and CFHLS-W1.
Science goals include z>6.5 quasars, extreme brown dwarfs, and
multiwavelength coverage and identifications for a range of other
imaging surveys, notably VST-KIDS and Herschel-ATLAS.
This second public data release of VIKING data covers all of the
highest quality data taken between the start of the survey (12th of
November 2009) and the end of Period 92 (30th September 2013). This
release supersedes the first release (VIKING and VIKING CAT published
28.06.2013 and 16.12.2013 respectively) as it includes improved CASU
processing (V1.3) that gives better tile grouting and zero point
corrections
This release contains 396 tiles with coverage in all five VIKING
filters, 379 of which have a deep co-add in J, and an additional 81
with at least two filters where the second OB has not been executed
yet or one filter in an OB was poor quality. These 477 fields cover a
total of ∼690 square degrees and the resulting catalogues include a
total of 46,270,162 sources (including low-reliability single-band
detections). The imaging and catalogues (both single-band and
band-merged) total 839.3GB. The coverage in each of the five sub-areas
is not completely contiguous but any inter-tile gaps are relatively
small.
More details can be found in the accompanying documentation:
vikingcatdr2.pdf
Data origin:
Data originate from the ESO Science Archive Facility and went through
the Phase 3 content validation process.
Acknowledging VIKING in publications:
Please use the following statement in any publication using these
data: "This publication has made use of data from the VIKING survey
from VISTA at the ESO Paranal Observatory, programme ID 179.A-2004.
Data processing has been contributed by the VISTA Data Flow System at
CASU, Cambridge and WFAU, Edinburgh"
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
viking2.sam 1220 1000 VIKING catalogue DR2 (2016-10-10)
viking_dr2.pdf 512 677 Viking catalog documentation
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See also:
II/329 : VIKING catalogue data release 1 (Edge+, 2013)
Byte-by-byte Description of file: viking2.sam
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 I12 --- SrcID UID of this merged detection as assigned
by merge algorithm (SOURCEID)
14- 22 F9.5 deg RAdeg Celestial Right Ascension (J2000) (RA2000)
24- 32 F9.5 deg DEdeg Celestial Declination (J2000) (DEC2000)
34- 60 A27 --- Name IAU Name (not unique),
VIKING JHHMMSS.SS+DDMMSS.ss (IAUNAME)
62- 67 I6 --- CUEVENTID UID of curation event giving rise to
this record (CUEVENTID)
69- 80 I12 --- FrameId UID of the set of frames that this merged
source comes from (FRAMESETID)
82- 93 I12 --- PriOrSec Seam code for a unique (=0) or
duplicated (!=0) source (PRIORSEC)
95- 101 F7.4 mag Z-Ypnt ? Point source colour Z-Y (using aperMag3)
(ZMYPNT)
103- 110 F8.4 mag e_Z-Ypnt ? Error on point source colour Z-Y
(ZMYPNTERR)
112- 119 F8.4 mag Y-Jpnt ? Point source colour Y-J (using aperMag3)
(YMJPNT)
121- 128 F8.4 mag e_Y-Jpnt ? Error on point source colour Y-J
(YMJPNTERR)
130- 136 F7.4 mag J-Hpnt ? Point source colour J-H (using aperMag3)
(JMHPNT)
138- 145 F8.4 mag e_J-Hpnt ? Error on point source colour J-H
(JMHPNTERR)
147- 153 F7.4 mag H-Kspnt ? Point source colour H-Ks (using aperMag3)
(HMKSPNT)
155- 162 F8.4 mag e_H-Kspnt ? Error on point source colour H-Ks
(HMKSPNTERR)
164- 170 F7.4 mag Z-Yext ? Extended source colour Z-Y
(using aperMagNoAperCorr3) (ZMYEXT)
172- 179 F8.4 mag e_Z-Yext ? Error on extended source colour Z-Y
(ZMYEXTERR)
181- 188 F8.4 mag Y-Jext ? Extended source colour Y-J
(using aperMagNoAperCorr3) (YMJEXT)
190- 197 F8.4 mag e_Y-Jext ? Error on extended source colour Y-J
(YMJEXTERR)
199- 205 F7.4 mag J-Hext ? Extended source colour J-H
(using aperMagNoAperCorr3) (JMKSEXT)
207- 214 F8.4 mag e_J-Hext ? Error on extended source colour J-H
(JMKSEXTERR)
216- 222 F7.4 mag H-Ksext ? Extended source colour H-Ks
(using aperMagNoAperCorr3) (HMKSEXT)
224- 231 F8.4 mag e_H-Ksext ? Error on extended source colour H-Ks
(HMKSEXTERR)
233- 241 F9.4 --- Mstat Merged N(0,1) stellarness-of-profile
statistic (MERGEDCLASSSTAT)
243- 244 I2 --- Mclass [-9/1] Class flag (MERGEDCLASS) (1)
246- 253 F8.6 --- pStar Probability that the source is a star
(PSTAR)
255- 262 F8.6 --- pGal Probability that the source is a galaxy
(PGALAXY)
264- 271 F8.6 --- pNoise Probability that the source is noise
(PNOISE)
273- 278 F6.4 --- E(B-V) The galactic dust extinction value measured
from the Schlegel maps (EBV)
280- 285 F6.4 mag AZ Galactic extinction correction in Z band
(AZ)
287- 292 F6.4 mag AY Galactic extinction correction in Y band
(AY)
294- 299 F6.4 mag AJ Galactic extinction correction in J band
(AJ)
301- 306 F6.4 mag AH Galactic extinction correction in H band
(AH)
308- 313 F6.4 mag AKs Galactic extinction correction in Ks band
(AKs)
315- 321 F7.4 mag Zpmag ? Extended source Z mag (Petrosian)
(ZPETROMAG)
323- 333 F11.4 mag e_Zpmag ? Error in extended source Zmag (Petrosian)
(ZPETROMAGERR)
335- 341 F7.4 mag Zap3 ? Default point source Z aperture corrected
mag (2.0 arcsec diam) (ZAPERMAG3)
343- 352 F10.4 mag e_Zap3 ? Error in default point source z aperture
corrected mag (2.0 arcsec) (ZAPERMAG3ERR)
354- 360 F7.4 mag Zap4 ? Point source Z aperture corrected mag
(2.8 arcsec aperture diam) (ZAPERMAG4)
362- 371 F10.4 mag e_Zap4 ? Error in point source z aperture
corrected mag (2.8 arcsec aperture)
(ZAPERMAG4ERR)
373- 379 F7.4 mag Zap6 ? Point source Z aperture corrected mag
(5.7 arcsec aperture diam) (ZAPERMAG6)
381- 392 F12.4 mag e_Zap6 ? Error in point source z aperture
corrected mag (5.7 arcsec aperture)
(ZAPERMAG6ERR)
394- 400 F7.4 mag Zapc3 ? Default extended source Z aperture mag
(2.0 arcsec diam) (ZAPERMAGNOAPERCORR3)
402- 408 F7.4 mag Zapc4 ? Extended source Z aperture mag
(2.8 arcsec aperture diameter)
(ZAPERMAGNOAPERCORR4)
410- 416 F7.4 mag Zapc6 ? Extended source Z aperture mag
(5.7 arcsec aperture diameter)
(ZAPERMAGNOAPERCORR6)
418- 424 F7.4 arcsec Zamaj ? Seeing corrected half-light,
semi-major axis in Z band (ZHLCORSMJRADAS)
426- 433 F8.3 pix Zrms ? RMS of axes of ellipse fit in Z (ZGAUSIG)
435- 440 F6.4 --- Zell ? 1-b/a, where a/b=semi-major/minor axes
in Z (ZELL)
442- 446 F5.1 deg ZPA ? Ellipse fit celestial orientation in Z
(ZPA)
448- 449 I2 --- Zerrbits Processing warning/error bitwise flags
in Z (ZERRBITS) (2)
451- 458 F8.4 --- Zavg2 ? Average confidence in 2 arcsec diam
default aperture 3 Z (ZAVERAGECONF)
460- 461 I2 --- Zclass [-2/1] discrete image classification
flag in Z (ZCLASS)
463- 469 F7.3 --- ZclassSt ? N(0,1) stellarness-of-profile statistic
in Z (ZCLASSSTAT)
471- 478 I8 --- Zperrbits Additional WFAU post-processing error bits
in Z (ZPPERRBITS) (2)
480- 485 I6 --- Zseq ? Running number of the Z detection
(ZSEQNUM)
487- 494 F8.4 mag Ypmag ? Extended source Y mag (Petrosian)
(YPETROMAG)
496- 506 F11.4 mag e_Ypmag ? Error in extended source Ymag (Petrosian)
(YPETROMAGERR)
508- 515 F8.4 mag Yap3 ? Default point source Y aperture corrected
mag (2.0 arcsec diam) (YAPERMAG3)
517- 525 F9.4 mag e_Yap3 ? Error in default point source y aperture
corrected mag (2.0 arcsec) (YAPERMAG3ERR)
527- 534 F8.4 mag Yap4 ? Point source Y aperture corrected mag
(2.8 arcsec aperture diam) (YAPERMAG4)
536- 546 F11.4 mag e_Yap4 ? Error in point source y aperture
corrected mag (2.8 arcsec aperture)
(YAPERMAG4ERR)
548- 555 F8.4 mag Yap6 ? Point source Y aperture corrected mag
(5.7 arcsec aperture diam) (YAPERMAG6)
557- 568 F12.4 mag e_Yap6 ? Error in point source y aperture
corrected mag (5.7 arcsec aperture)
(YAPERMAG6ERR)
570- 577 F8.4 mag Yapc3 ? Default extended source Y aperture mag
(2.0 arcsec diam) (YAPERMAGNOAPERCORR3)
579- 586 F8.4 mag Yapc4 ? Extended source Y aperture mag
(2.8 arcsec aperture diameter)
(YAPERMAGNOAPERCORR4)
588- 595 F8.4 mag Yapc6 ? Extended source Y aperture mag
(5.7 arcsec aperture diameter)
(YAPERMAGNOAPERCORR6)
597- 602 F6.3 arcsec Yamaj ? Seeing corrected half-light,
semi-major axis in Y band (YHLCORSMJRADAS)
604- 610 F7.3 pix Yrms ? RMS of axes of ellipse fit in Y (YGAUSIG)
612- 616 F5.3 --- Yell ? 1-b/a, where a/b=semi-major/minor axes
in Y (YELL)
618- 622 F5.1 deg YPA ? Ellipse fit celestial orientation in Y
(YPA)
624- 625 I2 --- Yerrbits [-1/28] processing warning/error bitwise
flags in Y (YERRBITS) (2)
627- 634 F8.4 --- Yavg ? Average confidence in 2 arcsec diam
default aperture 3 Y (YAVERAGECONF)
636- 637 I2 --- Yclass [-2-1] discrete image classification flag
in Y (YCLASS)
639- 646 F8.3 --- YclassSt ? N(0,1) stellarness-of-profile statistic
in Y (YCLASSSTAT)
648- 655 I8 --- Yperrbits Additional WFAU post-processing error bits
in Y (YPPERRBITS) (2)
657- 662 I6 --- Yseq ? Running number of the Y detection
(YSEQNUM)
664- 669 F6.3 arcsec Yxi ? Offset of Y detection from master
position (+east/-west) (YXI)
671- 676 F6.3 arcsec Yeta ? Offset of Y detection from master
position (+north/-south) (YETA)
678- 684 F7.4 mag Jpmag ? Extended source J mag (Petrosian)
(JPETROMAG)
686- 696 F11.4 mag e_Jpmag ? Error in extended source Jmag (Petrosian)
(JPETROMAGERR)
698- 704 F7.4 mag Jap3 ? Default point source J aperture corrected
mag (2.0 arcsec diam) (JAPERMAG3)
706- 715 F10.4 mag e_Jap3 ? Error in default point source j aperture
corrected mag (2.0 arcsec) (JAPERMAG3ERR)
717- 723 F7.4 mag Jap4 ? Point source J aperture corrected mag
(2.8 arcsec aperture diam) (JAPERMAG4)
725- 733 F9.4 mag e_Jap4 ? Error in point source j aperture
corrected mag (2.8 arcsec aperture)
(JAPERMAG4ERR)
735- 741 F7.4 mag Jap6 ? Point source J aperture corrected mag
(5.7 arcsec aperture diam) (JAPERMAG6)
743- 753 F11.4 mag e_Jap6 ? Error in point source j aperture
corrected mag (5.7 arcsec aperture)
(JAPERMAG6ERR)
755- 761 F7.4 mag Japc3 ? Default extended source J aperture mag
(2.0 arcsec diam) (JAPERMAGNOAPERCORR3)
763- 769 F7.4 mag Japc4 ? Extended source J aperture mag
(2.8 arcsec aperture diameter)
(JAPERMAGNOAPERCORR4)
771- 777 F7.4 mag Japc6 ? Extended source J aperture mag
(5.7 arcsec aperture diameter)
(JAPERMAGNOAPERCORR6)
779- 785 F7.4 arcsec Jamaj ? Seeing corrected half-light,
semi-major axis in J band (JHLCORSMJRADAS)
787- 793 F7.3 pix Jrms ? RMS of axes of ellipse fit in J (JGAUSIG)
795- 799 F5.3 --- Jell ? 1-b/a, where a/b=semi-major/minor axes
in J (JELL)
801- 805 F5.1 deg JPA ? Ellipse fit celestial orientation in J
(JPA)
807- 808 I2 --- Jerrbits [-1/28] processing warning/error bitwise
flags in J (JERRBITS) (2)
810- 816 F7.3 --- Javg ? Average confidence in 2 arcsec diam
default aperture 3 J (JAVERAGECONF)
818- 819 I2 --- Jclass [-2/1] discrete image classification flag
in J (JCLASS)
821- 827 F7.3 --- JclassSt ? N(0,1) stellarness-of-profile statistic
in J (JCLASSSTAT)
829- 836 I8 --- Jperrbits Additional WFAU post-processing error bits
in J (JPPERRBITS) (2)
838- 843 I6 --- Jseq ? Running number of the J detection
(JSEQNUM)
845- 850 F6.3 arcsec Jxi ? Offset of J detection from master
position (+east/-west) (JXI)
852- 857 F6.3 arcsec Jeta ? Offset of J detection from master
position (+north/-south) (JETA)
859- 865 F7.4 mag Hpmag ? Extended source H mag (Petrosian)
(HPETROMAG)
867- 877 F11.4 mag e_Hpmag ? Error in extended source Hmag (Petrosian)
(HPETROMAGERR)
879- 885 F7.4 mag Hap3 ? Default point source H aperture corrected
mag (2.0 arcsec diam) (HAPERMAG3)
887- 895 F9.4 mag e_Hap3 ? Error in default point source h aperture
corrected mag (2.0 arcsec) (HAPERMAG3ERR)
897- 903 F7.4 mag Hap4 ? Point source H aperture corrected mag
(2.8 arcsec aperture diam) (HAPERMAG4)
905- 915 F11.4 mag e_Hap4 ? Error in point source h aperture
corrected mag (2.8 arcsec aperture)
(HAPERMAG4ERR)
917- 923 F7.4 mag Hap6 ? Point source H aperture corrected mag
(5.7 arcsec aperture diam) (HAPERMAG6)
925- 935 F11.4 mag e_Hap6 ? Error in point source h aperture
corrected mag (5.7 arcsec aperture)
(HAPERMAG6ERR)
937- 943 F7.4 mag Hapc3 ? Default extended source H aperture mag
(2.0 arcsec diam) (HAPERMAGNOAPERCORR3)
945- 951 F7.4 mag Hapc4 ? Extended source H aperture mag
(2.8 arcsec aperture diameter)
(HAPERMAGNOAPERCORR4)
953- 959 F7.4 mag Hapc6 ? Extended source H aperture mag
(5.7 arcsec aperture diameter)
(HAPERMAGNOAPERCORR6)
961- 967 F7.4 arcsec Hamaj ? Seeing corrected half-light,
semi-major axis in H band (HHLCORSMJRADAS)
969- 975 F7.3 pix Hrms ? RMS of axes of ellipse fit in H (HGAUSIG)
977- 981 F5.3 --- Hell ? 1-b/a, where a/b=semi-major/minor axes
in H (HELL)
983- 987 F5.1 deg HPA ? Ellipse fit celestial orientation in H
(HPA)
989- 990 I2 --- Herrbits [-1/28] processing warning/error bitwise
flags in H (HERRBITS) (2)
992- 998 F7.3 --- Havg ? Average confidence in 2 arcsec diam
default aperture 3 H (HAVERAGECONF)
1000-1001 I2 --- Hclass [-2/1] discrete image classification flag
in H (HCLASS)
1003-1009 F7.3 --- HclassSt ? N(0,1) stellarness-of-profile statistic
in H (HCLASSSTAT)
1011-1018 I8 --- Hperrbits Additional WFAU post-processing error bits
in H (HPPERRBITS) (2)
1020-1025 I6 --- Hseq ? Running number of the H detection
(HSEQNUM)
1027-1032 F6.3 arcsec Hxi ? Offset of H detection from master
position (+east/-west) (HXI)
1034-1039 F6.3 arcsec Heta ? Offset of H detection from master
position (+north/-south) (HETA)
1041-1047 F7.4 mag Kspmag ? Extended source Ksmag (Petrosian)
(KSPETROMAG)
1049-1058 F10.4 mag e_Kspmag ? Error in extended source Ksmag
(Petrosian) (KSPETROMAGERR)
1060-1066 F7.4 mag Ksap3 ? Default point source Ks aperture
corrected mag (2.0 arcsec aperture diam)
(KSAPERMAG3)
1068-1075 F8.4 mag e_Ksap3 ? Error in default point source ks aperture
corrected mag (2.0 arcsec aperture diam)
(KSAPERMAG3ERR)
1077-1083 F7.4 mag Ksap4 ? Point source Ks aperture corrected mag
(2.8 arcsec aperture diam) (KSAPERMAG4)
1085-1093 F9.4 mag e_Ksap4 ? Error in point source ks aperture
corrected mag (2.8 arcsec aperture diam)
(KSAPERMAG4ERR)
1095-1101 F7.4 mag Ksap6 ? Point source Ks aperture corrected mag
(5.7 arcsec aperture diam) (KSAPERMAG6)
1103-1114 F12.4 mag e_Ksap6 ? Error in point source ks aperture
corrected mag (5.7 arcsec aperture diam)
(KSAPERMAG6ERR)
1116-1122 F7.4 mag Ksapc3 ? Default extended source Ks aperture mag
(2.0 arcsec aperture diam)
(KSAPERMAGNOAPERCORR3)
1124-1130 F7.4 mag Ksapc4 ? Extended source Ks aperture mag
(2.8 arcsec aperture diameter)
(KSAPERMAGNOAPERCORR4)
1132-1138 F7.4 mag Ksapc6 ? Extended source Ks aperture mag
(5.7 arcsec aperture diameter)
(KSAPERMAGNOAPERCORR6)
1140-1146 F7.4 arcsec Ksamaj ? Seeing corrected half-light, semi-major
axis in Ks band (KSHLCORSMJRADAS)
1148-1154 F7.3 pix Ksrms ? RMS of axes of ellipse fit in Ks
(KSGAUSIG)
1156-1160 F5.3 --- Ksell ? 1-b/a, where a/b=semi-major/minor axes
in Ks (KSELL)
1162-1166 F5.1 deg KsPA ? Ellipse fit celestial orientation in Ks
(KSPA)
1168-1169 I2 --- Kserrbits Processing warning/error bitwise flags
in Ks (KSERRBITS) (2)
1171-1177 F7.3 --- Ksavg ? Average confidence in 2 arcsec diam
default aperture 3 Ks (KSAVERAGECONF)
1179-1180 I2 --- Ksclass [-2/1] Discrete image classification flag
in Ks (KSCLASS)
1182-1188 F7.3 --- KsclassSt ? N(0,1) stellarness-of-profile statistic
in Ks (KSCLASSSTAT)
1190-1197 I8 --- Ksperrbits Additional WFAU post-processing error bits
in Ks (KSPPERRBITS) (2)
1199-1203 I5 --- Ksseq ? Running number of the Ks detection
(KSSEQNUM)
1205-1210 F6.3 arcsec Ksxi ? Offset of Ks detection from master
position (+east/-west) (KSXI)
1212-1218 F7.4 arcsec Kseta ? Offset of Ks detection from master
position (+north/-south) (KSETA)
1220 I1 --- prim [0/1] Primary source 1; secondary source 0
(PRIMARY_FLAG)
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Note (1): Class flag as follows:
1 = gal
0 = noise
-1 = star
-2 = probStar
-3 = probGal
-9 = saturated
Note (2): We recommend that users should restrict their analysis to objects with
zppErrBits, yppErrBits, etc<255 at all times and zppErrBits=0 if they require
the most reliable subset of the sources. Values of zppErrBits=16 indicate that
the source was deblended, zppErrBits=64 that at least one bad pixel was within
the default aperture and zppErrBits=128 that the source was low confidence
within the default aperture.
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History:
* 11-Oct-2016: this ReadMe document was prepared from the ESO document at
http://www.eso.org/sci/observing/phase3/data_releases/viking_dr2.pdf
(End) Patricia Vannier [CDS] 10-Oct-2016