XTE All-Sky Slew Survey Catalog

XTE All-Sky Slew Survey Catalog XTEASSCAT ivo://nasa.heasarc/xteasscat NASA/GSFC HEASARC Revnivtsev, Sazonov, Jahoda, Gilfanov 2026-07-17 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The Rossi X-Ray Timing Explorer (RXTE) All-Sky Survey Slew Catalog contains the results of a serendipitous hard X-ray (3 - 20 keV), nearly all-sky (|b|>10 degrees) survey based on observations by RXTE's Proportional Counter Array (PCA) which were performed during satellite reorientations in the period 1996 - 2002. The survey is 80% (90%) complete to a 4-sigma limiting flux of ~1.8 (2.5)x10-11 erg/s/cm2 in the 3 - 20 keV band. The achieved sensitivity in the 3 - 8 keV and 8 - 20 keV subbands is similar to and an order of magnitude higher than that of the previously record HEAO-1 A1 and HEAO-1 A4 all-sky surveys, respectively. A combined 7 x 103 square degree area of the sky is sampled to flux levels below 10-11 erg/s/cm2 (3 - 20 keV). In total 294 sources are detected and localized to better than ~1 degree; 236 (80%) of these can be confidently associated with a known astrophysical object; 22 of these sources have multiple counterparts (17 have 2 counterparts and 5 have 3 counterparts) with which they have been identified, and as these are listed as separate entries, there are 321 entries in this table. 35 detected sources remain unidentified, although for 12 of these we report a likely soft X-ray counterpart from the ROSAT all-sky survey bright source catalog. Of the reliably identified sources, 63 have a local origin (Milky Way, LMC or SMC), 64 are clusters of galaxies and 100 are active galactic nuclei (AGN). The fact that the unidentified X-ray sources have hard spectra suggests that the majority of them are AGN, including highly obscured ones (hydrogen column density > 1023 cm-2). This dataset enabled the authors to present for the first time a log N - log S diagram for extragalactic sources above 4 x 10-12 erg/s/cm2 at 8 - 20 keV. This database table was created by the HEASARC in May 2004 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/418/927">CDS Catalog J/A+A/418/927</a>. This is a service provided by NASA HEASARC . 2004A&A...418..927R https://heasarc.gsfc.nasa.gov/W3Browse/all/xteasscat.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=xteasscat& GET text/xml 180 99999 true 292.57130574 -79.83980266 1 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=xteasscat GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_xteasscat&Action=More+Options&Action=Parameter+Search&ConeAdd=1 RXTE 1 X-ray public xteasscat XTE All-Sky Slew Survey Catalog name Catalog Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable error_radius Uncertainty Radius of Source Position (arcmin) arcmin stat.error;pos short nullable count_rate_1 Source Count Rate in 3-8keV Energy Band (counts/s/PCU) ct/s/PCU phot.count;em.X-ray double nullable count_rate_1_error 1-Sigma Error of Source Count Rate in 3-8keV energy band (counts/s/PCU) ct/s/PCU stat.error;phot.count;em.X-ray double nullable count_rate_2 Source Count Rate in 8-20 keV Energy Band (counts/s/PCU) ct/s/PCU phot.count;em.X-ray double nullable count_rate_2_error 1-Sigma Error of Source Count Rate in 8-20keV Energy Band (counts/s/PCU) ct/s/PCU double nullable broad_type General Astrophysical Type of the Associated Object src.class char nullable lii Galactic Longitude degree pos.galactic.lon double nullable class Browse Object Classification src.class short nullable photon_index_error 1-Sigma Error of Photon Index stat.error;spect.index double nullable detailed_type More Detailed Classification of Object src.class char nullable remarks Remarks Code (Refer to Documentation) meta.note short nullable bii Galactic Latitude degree pos.galactic.lat double nullable limit_photon_index Flag Indicates Limit on Photon Index meta.code;spect.index char nullable redshift Redshift of Object src.redshift double nullable alt_names Possible Source Identifications meta.id.cross char nullable photon_index Effective Photon Index between Two Broad Energy Channels spect.index double nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable