The HEAO A-1 X-Ray Source Catalog VII/80 ivo://CDS.VizieR/VII/80 CDS Wood K.S. Meekins J.F. Yentis D.J. Smathers H.W. McNutt D.P.,Bleach R.D. Byram E.T. Chubb T.A. Friedman H. Meidav M. 2013-03-05T06:23:35Z 1998-03-05T22:13:44Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr x-ray-sources The HEAO A-1 X-Ray Source Catalog is a compilation of data for 842 sources detected with the U. S. Naval Research Laboratory Large Area Sky Survey Experiment flown aboard the HEAO 1 satellite. The data include source identifications, positions, error boxes, mean X-ray intensities, and cross identifications to other source designations. Introduction: The primary objective of the Naval Research Laboratory (NRL) Large Area Sky Survey Experiment (LASS) flown aboard the HEAO 1 satellite was to conduct an all-sky survey for the brightest X-ray sources in the energy range 0.25 to 25 keV. The instrumentation consisted of an array of large proportional counter modules with collimators of varying fields of view and with sufficient sensitivity to detect sources as faint as 0.25 mu.Jy at 5 keV, assuming a Crab-like spectrum (1.1 muJy at 5 keV = 1 UFU for a Crab-like spectrum). Full sky coverage was achieved in the first 6 months of the mission by continuously scanning great circles perpendicular to the Earth-Sun line. The HEAO A-1 catalog results from the 6-month survey and, thus, covers the whole sky. For additional information concerning the NRL LASS instrument, the data analysis procedures, characteristics and limitations of the source data, and a discussion of X-ray source classes, the source publication should be consulted. 1984ApJS...56..507W https://cdsarc.cds.unistra.fr/viz-bin/cat/VII/80 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VII/80 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VII/80 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VII/80 https://vizier.cds.unistra.fr/viz-bin/votable?-source=VII/80 https://vizier.iucaa.in/viz-bin/votable?-source=VII/80 http://vizieridia.saao.ac.za/viz-bin/votable?-source=VII/80 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table VII/80/sources (The data) https://vizier.cds.unistra.fr/viz-bin/conesearch/VII/80/sources? https://vizier.iucaa.in/viz-bin/conesearch/VII/80/sources? http://vizieridia.saao.ac.za/viz-bin/conesearch/VII/80/sources? GET text/xml+votable 180.0 50000 true 1.4427 20.2883 0.005555555555555556 HEAO 6/50 86 206 361 463 492 553 615 777 852 861 893 912 939 1003 1083 1095 1115 1196 1263 1297 1310 1357 1383 1405 1466 1596 1701 1752 1847 1877 1918 1953 2009 2017 2154 2169 2230 2388 2432 2465 2550 2709 2794 2838 3030 3041 3063 3078 3269 3309 3334 3353 3437 3463 3501 3545 3623 3651 3728 3822 3829 3920 3947 3969 3971 3987 4031 4054 4189 4213 4260 4290 4404 4444 4570 4672 4767 4772 4963 5027 5100 5130 5208 5309 5432 5481 5514 5607 5744 5796 5811 6018 6022 6038 6082 6097 6122 6241 6337 6479 6581 6638 6685 6751 6774 6886 6969 7021 7064 7121 7210 7226 7233 7346 7369 7542 7562 7606 7645 7746 7763 7778 7854 7896 7923 8071 8093 8210 8220 8264 8269 8378 8514 8745 8788 8907 8944 8949 8963 9036 9072 9117 9168 9325 9354 9365 9463 9493 9504 9512 9548 9583 9612 9660 9664 9686 9709 9742 9754 9849 10049 10107 10181 10217 10307 10379 10473 10481 10515 10519 10566 10582 10599 10657 10710 10823 10867 10890 10925 10975 11042 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https://cdsarc.cds.unistra.fr/viz-bin/moc/VII/80?format=ascii X-ray default VII/80/sources The data ELAT Ecliptic latitude deg pos.ecliptic.lat float name Source designation (1H) meta.id;meta.main char recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int RA1950 Right ascension 1950 in degrees deg pos.eq.ra;meta.main DE1950 Declination 1950 in degrees deg pos.eq.dec;meta.main GLON Galactic longitude deg pos.galactic.lon GLAT Galactic latitude deg pos.galactic.lat float ELON Ecliptic longitude deg pos.ecliptic.lon RA1 Right ascension_1 (1) deg pos.eq.ra DE1 Declination_1. (1) deg pos.eq.dec RA2 Right ascension_2 (1) deg pos.eq.ra DE2 Declination_2 (1) deg pos.eq.dec RA3 Right ascension_3 (1) deg pos.eq.ra DE3 Declination_3 (1) deg pos.eq.dec RA4 Right ascension_4 (1) deg pos.eq.ra DE4 Declination_4 (1) deg pos.eq.dec area Area of error box deg**2 stat.error;phys.area float flux Flux (2) count.cm**-2.s**-1 phot.flux;em.X-ray float e_flux Flux error (2) count.cm**-2.s**-1 stat.error;phot.flux float name2 Alternate designation (X-ray) (3) meta.id char name3 Alternate designation (X-ray) (3) meta.id char name4 Alternate designation (X-ray) (3) meta.id char name5 Alternate designation (X-ray) (3) meta.id char name6 Alternate designation (X-ray) (3) meta.id char name7 Alternate designation (X-ray) (3) meta.id char name8 Alternate designation (X-ray) (3) meta.id char name9 Alternate desig. (non-X-ray) (3) meta.note char name10 Alternate desig. (non-X-ray) (3) meta.note char name11 Alternate desig. (non-X-ray) (3) meta.note char name12 Alternate desig. (non-X-ray) (3) meta.note char _RA.icrs Right ascension (ICRS) (computed by VizieR, not part of the original data) deg pos.eq.ra nullable indexed _DE.icrs Declination (ICRS) (computed by VizieR, not part of the original data) deg pos.eq.dec nullable indexed