RASSMASTER ivo://nasa.heasarc/rassmaster NASA/GSFC HEASARC MPE; HEASARC 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Observation This database table contains the list German ROSAT All-Sky Survey observations which were obtained during the ROSAT All-Sky Survey phase (1990 July 30 to 1991 Jan 25) and which have become available to the public. These data were obtained in scanning mode and therefore an individual dataset covers a much larger area of the sky than do pointed moded observations. In addition all these data were obtained with PSPC-C, while all pointed mode observations after the end of the All-Sky Survey were obtained with PSPC-B. For each observation listed in this database table, the instrument used, processing site, and coordinates of the field center are given, as well as the ROSAT observation request number (ROR), actual exposure time, date the observation took place, and more. For details about the ROSAT instruments, consult the ROSAT Mission Description (NASA Research Announcement for ROSAT, Appendix F and its addendum) and the ROSAT GSFC GOF website at <a href="http://heasarc.gsfc.nasa.gov/docs/rosat/rosgof.html">http://heasarc.gsfc.nasa.gov/docs/rosat/rosgof.html</a> for more information. For more information about the ROSAT All Sky Survey, see the ROSAT All Sky Survey page at <a href="http://www.xray.mpe.mpg.de/cgi-bin/rosat/rosat-survey">http://www.xray.mpe.mpg.de/cgi-bin/rosat/rosat-survey</a>. This database table was created at the HEASARC in March 2002, based on information provided by Max-Planck-Institut fuer extraterrestrische Physik at <a href="http://wave.xray.mpe.mpg.de/">http://wave.xray.mpe.mpg.de/</a>. This is a service provided by NASA HEASARC . https://heasarc.gsfc.nasa.gov/W3Browse/all/rassmaster.html Archive Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=rassmaster& GET text/xml 180 99999 true 0 -90 4.5 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=rassmaster GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_rassmaster&Action=More+Options&Action=Parameter+Search&ConeAdd=1 https://heasarc.gsfc.nasa.gov/xamin/vo/sia?table=rassmaster& GET text/xml+votable POS Search Position in the form "ra,dec" where ra and dec are given in decimal degrees in the ICRS coordinate system. Cutout 0 -90 4.5 4.5 ROSAT 4.5 X-ray public rassmaster ROSAT All-Sky Survey Archival Data seq_id Sequence Identifier (e.g. RS123456N00) meta.id char nullable instrument Instrument Used instr.setup char nullable exposure Actual Exposure Time (sec) s time.duration;obs.exposure int nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable title Title of Proposal meta.title;obs char nullable public_date Date Data Made Public mjd time.release int 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 site Processing Site (GSFC or MPE) meta.id;instr.obsty char nullable index_id Index Identification meta.id char nullable end_date Date Observation Ended mjd time.end;obs int nullable bii Galactic Latitude degree pos.galactic.lat double nullable ror ROSAT Observation Request Number meta.id;meta.main int nullable proc_rev Revision Level of the Processing short nullable dist_date Data Distribution Date mjd int nullable fits_type FITS Type/Version meta.version char nullable start_date Date Observation Began mjd time.start;obs int nullable filter Flag Indicates Filter Used? (Y or N) meta.code;instr.filter char nullable qa_number Data Set Identification Number meta.id int nullable lii Galactic Longitude degree pos.galactic.lon double nullable