ii/348 vista variable in the via lactea survey dr2 (minniti+, 2017)
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vista variables in the via lactea survey (vvv).
catalogue data realese 2 (vvv cat).
minniti d., lucas p., vvv team
<astron. astrophys., 537, a107 (2002)>
=2017ycat.2348....0m
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adc_keywords: surveys ; infrared sources ; photometry, infrared
mission_name: eso
keywords: galaxy: bulge - galaxy: disk - galaxy: stellar content -
stars: abundances - infrared: stars - surveys
abstract:
the vvv survey data delivered in this part of eso data release 2 (dr2)
are based on the vista/vircam images that were acquired up to
september 30, 2011, and processed by the cambridge astronomical survey
unit (casu). this "vvv_cat" data release contains the single-epoch
band-merged (z, y, j, h, ks) catalogues associated with the vvv tile
images that have already been released in the part of dr2 identified
as batch 2 of the "vvv' collection in the eso archive.
vvv_cat contains 348 tile catalogues.
description:
the j, h and ks images for each tile were obtained contemporaneously
within a single ob, so that the time interval between images in
different filters does not exceed 20 minutes. the z and y images for
each tile were grouped together in another ob, separate in time from
the jhks obs.
acknowledging vvv in publications:
please use the following statement in any publication using these
data: "based on data products from observations made with eso
telescopes at the la silla paranal observatory under programme id
179.b-2002"
file summary:
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filename lrecl records explanations
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readme 80 . this file
vvv2.sam 711 1000 vvv catalog dr2 (2015-08-19)
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see also:
ii/337 : vista variables in the via lactea survey dr1 (saito+, 2012)
byte-by-byte description of file: vvv2.sam
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bytes format units label explanations
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1- 12 i12 --- srcid uid of this merged detection (sourceid)
14- 23 f10.6 deg raj2000 celestial right ascension (j2000) (ra2000)
25- 34 f10.6 deg dej2000 celestial declination (j2000) (dec2000)
36- 59 a24 --- iauname unique identifier in iau naming convention,
vvv jhhmmss.ss+ddmmss.ss (iauname)
61- 72 i12 --- framesetid uid of the set of frames that this merged
source comes from (framesetid)
74- 83 f10.6 deg glon galactic longitude (l)
85- 94 f10.6 deg glat galactic latitude (b)
96-104 f9.6 deg lambda sdss system spherical co-ordinate 1 (lambda)
106-116 f11.6 deg eta sdss system spherical co-ordinate 2 (eta)
118-129 i12 --- priorsec seam code for a unique (=0) or
duplicated (!=0) source (priorsec) (1)
131-136 f6.2 --- mclassstat ? merged n(0,1) stellarness-of-profile
statistic (mergedclassstat)
138-139 i2 --- mclass [-3-1] class flag,
1|0|-1|-2|-3|-9=gal|noise|star|probstar|
probgal|saturated (mergedclass)
141-147 f7.3 mag z-y ? point source colour z-y (using apermag3)
(zmypnt)
149-156 f8.3 mag e_z-y ? error on point source colour z-y
(zmypnterr)
158-164 f7.3 mag j-h ? point source colour j-h (using apermag3)
(jmhpnt)
166-173 f8.3 mag e_j-h ? error on point source colour j-h
(jmhpnterr)
175-181 f7.3 mag h-ks ? point source colour h-ks
(using apermag3) (hmkspnt)
183-190 f8.3 mag e_h-ks ? error on point source colour h-ks
(hmkspnterr)
192-197 f6.3 mag zmag1 ? extended source z aperture corrected mag
1.0 arcsec diam (zapermag1)
199-204 f6.3 mag e_zmag1 ? default source z mag (1.0 arcsec aperture
diameter) (zapermag1err)
206-211 f6.3 mag zmag3 ? default source z aperture corrected mag 2.0
arcsec diam (zapermag3)
213-222 f10.3 mag e_zmag3 ? error ind default source z mag 2.0 arcsec
diam (zapermag3err)
224-229 f6.3 mag zmag4 ? extended source z aperture corrected mag
2.8 arcsec diam (zapermag4)
231-240 f10.3 mag e_zmag4 ? error in extended source z mag
(2.8arcsec aperture diameter) (zapermag4err)
242-248 f7.3 pix zgausig ? rms of axes of ellipse fit in z
250-254 f5.1 deg zpa ? ellipse fit celestial orientation in z
256-258 f3.1 --- zell ? 1-b/a; where a/b=semi-major/minor axes in
z (zell)
260-267 i8 --- zperrbits additional wfau post-processing error bits
in z (zpperrbits) (2)
269-271 i3 --- zaveconf ? average confidence in 2 arcsec diameter
default aperture 3 (aper3) z (zaverageconf)
273-279 i7 --- zseqnum ? running number of the z detection (zseqnum)
281-284 f4.2 arcsec zxi ? offset of z detection from master position
(+east/-west) (zxi)
286-289 f4.2 arcsec zeta ? offset of z detection from master position
(+north/-south) (zeta)
291-297 f7.3 mag ymag1 ? extended source y aperture corrected mag
0.7 arcsec aperture diameter (yapermag1)
299-304 f6.3 mag e_ymag1 ? error in extended source y mag 0.7 arcsec
(yapermag1err)
306-312 f7.3 mag ymag3 ? default source y aperture corrected mag 2.0
arcsec aperture diameter (yapermag3)
314-321 f8.3 mag e_ymag3 ? error in default source y mag 2.0 arcsec
aperture diameter (yapermag3err)
323-329 f7.3 mag ymag4 ? extended source y aperture corrected mag
2.8 arcsec diameter (yapermag4)
331-341 f11.3 mag e_ymag4 ? error in extended source y mag 2.8 arcsec
(yapermag4err)
343-349 f7.3 pix ygausig ? rms of axes of ellipse fit in y
351-355 f5.1 deg ypa ? ellipse fit celestial orientation in y
357-359 f3.1 --- yell ? 1-b/a; where a/b=semi-major/minor axes in y
(yell)
361-368 i8 --- yperrbits additional wfau post-processing error bits
in y (ypperrbits) (2)
370-372 i3 --- yaveconf ? average confidence in 2 arcsec diameter
default aperture (aper 3) y (yaverageconf)
374-380 i7 --- yseqnum ? running number of the y detection (yseqnum)
382-386 f5.2 arcsec yxi ? offset of y detection from master position
(+east/-west) (yxi)
388-392 f5.2 arcsec yeta ? offset of y detection from master position
(+north/-south) (yeta)
394-400 f7.3 mag jmag1 ? extended source j aperture corrected mag
0.7 arcsec diameter (japermag1)
402-408 f7.3 mag e_jmag1 ? error in extended source j mag 0.7 arcsec
aperture diameter (japermag1err)
410-416 f7.3 mag jmag3 ? default source j aperture corrected mag 2.0
arcsec diameter (japermag3)
418-426 f9.3 mag e_jmag3 ? error in default source j mag 2.0 arcsec
diameter (japermag3err)
428-434 f7.3 mag jmag4 ? extended source j aperture corrected mag
2.8 arcsec diameter (japermag4)
436-446 f11.3 mag e_jmag4 ? error in extended source j mag 2.8 arcsec
aperture diameter (japermag4err)
448-454 f7.3 pix jgausig ? rms of axes of ellipse fit in j
456-460 f5.1 deg jpa ? ellipse fit celestial orientation in j
462-464 f3.1 --- jell ? 1-b/a; where a/b=semi-major/minor axes in
j (jell)
466-473 i8 --- jperrbits additional wfau post-processing error bits
in j (jpperrbits)
475-477 i3 --- javeconf ? average confidence in 2 arcsec diameter
default aperture (aper3) j (javerageconf)
479-485 i7 --- jseqnum ? running number of the j detection (jseqnum)
487-491 f5.2 arcsec jxi ? offset of j detection from master position
(+east/-west) (jxi)
493-497 f5.2 arcsec jeta ? offset of j detection from master position
(+north/-south) (jeta)
499-505 f7.3 mag hmag1 ? extended source h aperture corrected mag
1.0 arcsec diam (hapermag1)
507-514 f8.3 mag e_hmag1 ? error in extended source h mag 0.7 arcsec
aperture diameter (hapermag1err)
516-522 f7.3 mag hmag3 ? default source h aperture corrected mag 2.0
arcsec diameter (hapermag3)
524-531 f8.3 mag e_hmag3 ? error in default source h mag 2.0 arcsec
diameter (hapermag3err)
533-539 f7.3 mag hmag4 ? extended source h aperture corrected mag
2.8 arcsec diameter (hapermag4)
541-551 f11.3 mag e_hmag4 ? error in extended source h mag 2.8 arcsec
aperture diameter (hapermag4err)
553-559 f7.3 pix hgausig ? rms of axes of ellipse fit in h
561-565 f5.1 deg hpa ? ellipse fit celestial orientation in h
567-569 f3.1 --- hell ? 1-b/a; where a/b=semi-major/minor axes in h
(hell)
571-578 i8 --- hperrbits additional wfau post-processing error bits
in h (hpperrbits)
580-582 i3 --- haveconf ? average confidence in 2 arcsec diameter
default aperture (aper3) h (haverageconf)
584-590 i7 --- hseqnum ? running number of the h detection (hseqnum)
592-596 f5.2 arcsec hxi ? offset of h detection from master position
(+east/-west) (hxi)
598-602 f5.2 arcsec heta ? offset of h detection from master position
(+north/-south) (heta)
604-610 f7.3 mag ksmag1 ? extended source ks aperture corrected mag
1.0 arcsec diameter (ksapermag1)
612-619 f8.3 mag e_ksmag1 ? error in extended source ks mag 0.7 arcsec
aperture diameter (ksapermag1err)
621-627 f7.3 mag ksmag3 ? default source ks aperture corrected mag
2.0 arcsec diameter (ksapermag3)
629-636 f8.3 mag e_ksmag3 ? error ind default source ks mag 2.0 arcsec
diameter (ksapermag3err)
638-644 f7.3 mag ksmag4 ? extended source ks aperture corrected mag
2.8 arcsec diameter (ksapermag4)
646-656 f11.3 mag e_ksmag4 ? error in extended source ks mag 2.8 arcsec
aperture diameter (ksapermag4err)
658-664 f7.3 pix ksgausig ? rms of axes of ellipse fit in ks (ksgausig)
666-670 f5.1 deg kspa ? ellipse fit celestial orientation in ks
(kspa)
672-674 f3.1 --- ksell ? 1-b/a; where a/b=semi-major/minor axes in
ks (ksell)
676-683 i8 --- ksperrbits additional wfau post-processing error bits
in ks (kspperrbits)
685-687 i3 --- kaveconf ? average confidence in 2 arcsec diameter
default aperture (aper3) ks (ksaverageconf)
689-695 i7 --- ksseqnum ? running number of the ks detection
(ksseqnum)
697-701 f5.2 arcsec ksxi ? offset of ks detection from master position
(+east/-west) (ksxi)
703-707 f5.2 arcsec kseta ? offset of ks detection from master position
(+north/-south) (kseta)
709-711 i3 --- flgvar [0/1]? classification of variability in this
band (varflag)
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note (1): primary sources have priorsec=0 or pri0rsec=framesetid
note (2): we recommend that users should restrict their analysis to objects
with zperrbits, yperrbits, etc<255 at all times and zperrbits=0 if they
require the most reliable subset of the sources. values of zperrbits=16
indicate that the source was deblended, zperrbits=64 that at least one bad
pixel was within the default aperture and zperrbits=128 that the source was
low confidence within the default aperture."
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history:
* 26-apr-2017: this readme document was processed from the documents at
http://eso.org/rm/publicaccess#/datareleases
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(end) francois-xavier pineau, patricia vannier [cds] 13-apr-2017