J/ApJS/275/34ivo://CDS.VizieR/J/ApJS/275/34doi:10.26093/cds/vizier/bb-8k-12CDSPiridi S.Kumar R.Pandey D.Pradhan A.C.2026-08-03T07:25:47Z2025-04-11T09:26:21ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frultraviolet-astronomysurveysgalaxiesplanetary-nebulaestellar-associationsgalaxy-classification-systemsWe present the first comprehensive source catalog (UVIT DR1) of ultraviolet (UV) photometry in four far-UV (FUV~1300-1800{AA}) and five near-UV (NUV~2000-3000{AA}) filters of the Ultraviolet Imaging Telescope (UVIT) on board AstroSat. UVIT DR1 includes bright UV sources in 291 fields that UVIT detected during its first 2yr of pointed observation, encompassing an area of 58deg^2^. We used the CCDLAB pipeline to reduce the Level 1 data, SExtractor for source detection, and four photometric procedures to determine the magnitudes of the detected sources. We provided the 3{sigma} and 5{sigma} detection limits for all the filters of UVIT. We describe the details of observation, source extraction methods, and photometry procedures applied to prepare the catalog. In the final UVIT DR1 catalog, we have point sources, extended sources, clumps from nearby galaxies, globular clusters, open clusters, planetary nebulae, and gaseous nebulae. There are 239520 unique sources in the combined UVIT DR1, of which 70488 sources have FUV magnitudes, and 211410 have NUV magnitudes. We crossmatched and compared noncrowded sources of UVIT with the Galaxy Evolution Explorer and Gaia source catalogs. We provide a clean catalog of the unique sources in various UVIT filters that will help further the multiwavelength scientific analysis of the objects.2024ApJS..275...34Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/275/34CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/275/34https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/275/34http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/275/34https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/275/34https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/275/34http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/275/34GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/275/34/uvit_dr1 (UVIT catalog (table 9))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/275/34/uvit_dr1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/275/34/uvit_dr1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/275/34/uvit_dr1?GETtext/xml+votable180.050000true199.0953817.750680.0055555555555555565/3372 4308 6230 7031 8239 8623 8633 10155 11775 6/326 538 546 579 582 597 599 615 626 953 1003 1006 1200-1201 1263 1701 1839 1850 2065-2067 2131 2134 2137 2140 2369 2372 2564 2566 2619 2622-2623 2666 2705 2708-2709 2752 2934 2940 3014-3015 3020-3021 3444 3446 3632 3817-3819 3874 4067 4075-4076 4078 4298 4688 4690 4695 5542 5545 5548 5568 5570 5970 5976 5996 5998 6143 6522-6523 6608-6609 6619 7038 7068-7069 7240-7241 7243-7244 7246 7320-7321 7365 7367 7370-7371 7374 7392 7618 7624 7741 7743 7784 7786 7799 7805 7874-7875 7880-7881 7969-7970 8029 8422 8428 8782-8783 8788 8844 8906 9190 9210-9211 9612-9613 9934-9935 10123 10126 10145 10148-10149 10160 10320-10321 10336-10337 10378-10379 10382 10400-10401 10475 10565 10637 10714-10715 10736 10749 10751 10815 10856 10900-10901 10911 10927 10938 10954 10963 10969 10977 10979-10980 10982 11228-11230 11258-11259 11371 11374 11427 11432-11434 11443-11444 11446 11457 11460 11839 11882 11968 12554-12555 12576-12577 13203 13206-13207 13209 13212 13214 13250 13312 13817 13820 14175 14573 14575 14584 14586 15969 15971 16441 16602-16603 16645 16647 16653 16655-16656 16658 16664 16666 16805 16807 16816 16818 16824 17121 17124 17127 17138 17144 17165 17167 17237 17239 17432-17433 18295 18301 18398 18420 18431 18524-18525 18590-18591 18603 18606-18607 18944-18945 18948 19283 19398 19797 19802 19883 19978 20000 20082-20083 20138 21017 21050-21051 21136 22476 22478-22479 23465 23468 24185 24259 24265 24715 24718 24737 24740 24843 25051 25054 25132-25134 25194-25195 25280 26561 26563 27481 27483-27484 27486 27549 27592 27644 27765-27767 27772-27773 27830 27836 27861 27863 27942 27973 27975 27984 27986 28032 28066-28067 28149 28249 28251 28254 28275 28281 28513 28515-28517 28528 28630-28631 28877 28879 29234 29398 29404 29716 29718 32224 32302-32303 32951 32953 32955 33088-33090 33192 33291 33313 33328-33330 33378 33626-33627 33634-33635 33640-33641 33794-33795 33800-33801 33955-33956 33958 34139 34242-34243 34342-34343 34348-34349 34379 34382 34401 34404 34471 34531 34540 34838-34839 34844-34845 34881 35009 35011 35078-35079 35148 35150 35377-35379 35512 35514 35536 35538 35934-35935 35957 36509 36511 36721 37291 37294 37633 37636 37875 38380 38382 39347 39350 39353 39356 40297 41876 42446-42447 42822 43262-43263 43604 43803 43806 43825 43828 43876-43877 43995 44017 44020 44245 44247 44892 44894 44902 44908 45291 45294 45633 45636 46307 46310 46313 46316 46399 46442 46492 46494 46506-46507 46525 46554-46555 46562-46563 46568 46576-46577 46848-46849 47011 47014 47047 47053 47058 47064 47078 47325 47496https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/275/34?format=asciiUVOpticaldefaultJ/ApJS/275/34/uvit_dr1UVIT catalog (table 9)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTIDTarget ID of imageobs.imagecharPIDTIDField identification number in format PID_TIDmeta.id;obs.fieldcharFilterFilter usedinstr.setup;instr.filtercharUIDSource identification number in format PID_TID_NUMBERmeta.id;meta.maincharRAJ2000Right ascension of source (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination of source (J2000)degpos.eq.dec;meta.mainindexedXimagePhysical x-coordinate of sourcepixpos.cartesian.x;instr.detdoubleYimagePhysical y-coordinate of sourcepixpos.cartesian.y;instr.detdoubleNumberSource number assigned by source-extractormeta.idintISOmagIsophotal apparent magnitudemagphot.mag;em.UVfloate_ISOmagUncertainty in ISOmagmagstat.error;phot.magfloatAUTOmagKron apparent magnitude of sourcemagphot.mag;em.UVfloate_AUTOmagUncertainty in AUTOmagmagstat.error;phot.magfloatSNRSignal-to-noise ratio of sourcestat.snrdoubleKRadiusKron aperture radiusphys.angSizefloatBackgroundLocal background of sourcectinstr.background;pos.lsr;pos.lgfloatAimageSemi-major axis of elliptical aperture in pixelspixphys.sizedoubleBimageSemi-minor axis of elliptical aperture in pixelspixphys.sizedoublePAimagePosition angle of sourcedegpos.posAngdoubleRadiusRadius enclosing half of total flux of objectpixphys.size.radiusfloatAworldSemi-major axis of elliptical aperture in degreesdegphys.angSizedoubleBworldSemi-minor axis of elliptical aperture in degreesdegphys.angSize;srcdoublePAworldPosition angledegpos.posAngdoubleFWHMFWHM of sourcepixphys.angSizedoubleElongElongation, Aimage / Bimagephys.size.axisRatioEllEllipticity, 1 - Bimage / Aimagesrc.ellipticityfloatClass[0/1] Star or galaxy classifiermeta.idfloatmuPeak surface brightness above backgroundmagphot.mag.sbfloatAPERmag3? Apparent magnitude within aperture radius of 3 pixelsmagphot.mag;em.UVfloatnullableAPERmag12? Apparent magnitude within aperture radius of 12 pixelsmagphot.mag;em.UVfloatnullableAPERmag15? Apparent magnitude within aperture radius of 15 pixelsmagphot.mag;em.UVfloatnullablee_APERmag3? Uncertainty in APERmag3magstat.error;phot.magfloatnullablee_APERmag12? Uncertainty in APERmag12magstat.errorfloatnullablee_APERmag15? Uncertainty in APERmag15magstat.errordoublenullableIRAFmag? Apparent magnitude obtained after fitting Gaussian functionmagphot.mag;em.UVfloatnullablecorPSFmag? PSF apparent magnitude after applying aperture and saturation correctionmagphot.mag;em.UVfloatnullablee_IRAFmag? Error in PSF magnitudemagstat.error;phot.magfloatnullableChi? Goodness of PSF-fittingstat.fit.chi2floatnullableSharpness? Sharpness of PSF-fittingstat.fit.paramfloatnullableExpMapExposure value of sourcestat.fit.paramfloatExpTimeExposure time of imagestime.duration;obs.exposuredoublePSFFWHM? PSF FWHM of imagepixphys.angSizefloatnullableRAdegCRight ascension at center of FoV (J2000)degpos.eq.raDEdegCDeclination at center of FoV (J2000)degpos.eq.deccdistDistance of source from center of FoVarcminpos.distancefloatFlagid[0/7] Flag to identify field type (1)meta.code.errorintNepochFlag to identify single and multi-epoch sources (2)meta.codecharNS/G[0/1]? Probable star or galaxy (3)meta.idintnullableStypeSource type (4)src.classcharPIDProposal ID of imagemeta.idchar