EXOLOG ivo://nasa.heasarc/exolog NASA/GSFC HEASARC HEASARC 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Observation This database table contains the EXOSAT observation log. This is a complete list of all EXOSAT observations, observing modes, and principal investigators. The log can be used to find out which targets were observed by EXOSAT, who observed them, and the current state of the data analysis. The HEASARC revised this database table in August, 2005, in an effort to modernize its parameter names and add Galactic coordinates. This is a service provided by NASA HEASARC . https://heasarc.gsfc.nasa.gov/W3Browse/all/exolog.html Archive Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=exolog& GET text/xml 180 99999 true 10.0865123898699 -79.1941334932379 1 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=exolog GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_exolog&Action=More+Options&Action=Parameter+Search&ConeAdd=1 EXOSAT 1 X-ray public exolog EXOSAT Observation Log name Target Designation meta.id char nullable sequence_number Observation Sequence Number meta.id;meta.main short nullable ra Right Ascension of EXOSAT Pointing degree pos.eq.ra;meta.main double nullable dec Declination of EXOSAT Pointing degree pos.eq.dec;meta.main double nullable instrument Instrument Designation: LE1, LE2, ME or GSPC char nullable "time" Observation Start Time mjd time.start;obs double nullable end_time Observation End Time mjd time.end;obs 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 fot_end FOT End Timestamp char nullable fot_start FOT Start Timestamp char nullable observer_code Observer Code short nullable fot_time_2 FOT Time 2 mjd double nullable xenon_integration_time Xenon Integration Time (ME) s float nullable multiple_fot_flag Flag Indicates Data in Multiple FOTs short nullable proposal_type Proposal Type Based on Object Class char nullable channel_compression Number of Channels Combined by OBC short nullable target_number Target Number char nullable channel_selection ME PHA Channel Selection char nullable proposal_code Proposal Code char nullable fot_name FOT Name char nullable observer Principal Investigator for the Observation char nullable intensity_sample_interva Intensity Sample Interval (s) s float nullable fot_time_1 FOT Time 1 mjd double nullable lii Galactic Longitude of EXOSAT Pointing degree pos.galactic.lon double nullable argon_integration_time Argon Integration Time (ME) s float nullable fot_time_3 FOT Time 3 mjd double nullable footnotes Footnotes char nullable bii Galactic Latitude of EXOSAT Pointing degree pos.galactic.lat double nullable obc_modes On-Board Computer Mode Info char nullable payload_status Instrument Mode Information char nullable