NUMASTER ivo://nasa.heasarc/numaster NASA/GSFC HEASARC Caltech; HEASARC 2026-04-10 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Observation The Nuclear Spectroscopic Telescope Array (NuSTAR) mission, launched on 2012 June 13, is the first focusing high-energy X-ray telescope in orbit. NuSTAR operates in the band from 3 to 79 keV, extending the sensitivity of focusing instruments far beyond the ~10 keV high-energy cutoff achieved by all previous X-ray satellites. The inherently low background associated with concentrating the X-ray light enables NuSTAR to probe the hard X-ray sky with a more than 100-fold improvement in sensitivity over the collimated or coded mask instruments that have operated in this bandpass. The observatory was placed into a 600-km altitude, 6 degree inclination circular orbit, and consists of two co-aligned grazing-incidence X-ray telescopes pointed at celestial targets by a three-axis stabilized spacecraft. NuSTAR has completed its two-year primary science mission, and, with an expected orbit lifetime of more than 10 years, the opportunity for proposing observations as part of the General Observer (GO) program is now available, with observations beginning in 2015. Using its unprecedented combination of sensitivity and spatial and spectral resolution, NuSTAR offers opportunities for a broad range of science investigations, ranging from probing cosmic ray origins to studying the extreme physics around compact objects to mapping micro-flares on the surface of the Sun. NuSTAR also responds to targets of opportunity including supernovae and gamma-ray bursts. This table contains a list of (a) unobserved targets that are planned or have been accepted for observation by NuSTAR in the future and (b) NuSTAR observations which have been processed and successfully validated by the NuSTAR Science Operation Center. The data from these observations may or may not be public and the user should check the value of the public_date parameter to determine the status of a specified data set. Only those ObsIDs which have a public_date in the past will have data publicly available. Observations with a public_date parameter value which is either blank or a date in the future have been ingested into the HEASARC archive but will remain encrypted until their public date. Entries with the status field set to 'accepted' are targets approved for scheduling, and the planned exposure time given in the exposure_a (and exposure_b) parameter will have a negative value for those targets. This database table is based on information supplied by the NuSTAR Project at Caltech. It is automatically updated on a regular basis. This is a service provided by NASA HEASARC . https://heasarc.gsfc.nasa.gov/W3Browse/all/numaster.html Archive Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=numaster& GET text/xml 180 99999 true 3.7918 -87.1594 0.2 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=numaster GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_numaster&Action=More+Options&Action=Parameter+Search&ConeAdd=1 https://heasarc.gsfc.nasa.gov/xamin/vo/sia?table=numaster& 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. degrees real SIZE Size of search region in the RA and Dec. directions. degrees real FORMAT Requested format of images. string CFRAME Coordinate frame: ICRS, FK5, FK4, GAL, ECL string EQUINOX Equinox used in FK4 or FK5 frames. real Cutout 360.0 180.0 360.0 180.0 5000 10000000 500 3.7918 -87.1594 0.2 0.2 https://heasarc.gsfc.nasa.gov/xamin/vo/sia?table=numaster& 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 3.7918 -87.1594 0.2 0.2 NUSTAR 0.2 X-ray public numaster NuSTAR Master Catalog bii Galactic Latitude (Pointing Position) degree pos.galactic.lat double nullable cycle Proposal Cycle Number obs.proposal.cycle short nullable exposure_a FPMA Effective Exposure on Source (s) s time.duration;obs.exposure double nullable ontime_a FPMA On-Source Time (s) s time.duration;obs.exposure double nullable "time" Start Time of the Observation mjd time.start;obs double nullable dec Declination (Pointing Position) degree pos.eq.dec;meta.main double nullable instrument_mode FPM Mode (CPMODE or Normal) instr.setup char nullable comments General Information about Observation meta.note char nullable obs_type Type of Observation (e.g., TOO) meta.code;obs char nullable public_date Date That Data Was or Will Be Made Available to the Public mjd time.release int nullable title Proposal Title meta.title;obs.proposal char nullable subject_category Proposal Category src.class char nullable name Designation of the Pointed Source meta.id;meta.main char nullable priority Proposal Priority meta.code char nullable processing_date Date of Processing (TT) mjd time.processing double nullable solar_activity Solar Activity (e.g., Flare, CME) meta.note char nullable obsid Unique Observation/Sequence Number meta.id;obs char nullable copi_lname Proposal Co-PI Last Name meta.id.PI char nullable caldb_version CALDB Version Used in the Pipeline meta.version;instr.calib char nullable copi_fname Proposal Co-PI First Name meta.id.PI char nullable "__x_ra_dec" System unit vector column double nullable category_code Proposal Category Code meta.code;src.class short nullable ontime_b FPMB On-Source Time (s) s time.duration;obs.exposure double nullable prnb Proposal Number meta.number;obs.proposal int nullable pi_lname Last Name of the Principal Investigator of the Proposal meta.id.PI char nullable software_version Software Version Used in the Pipeline meta.version;meta.software char nullable "__y_ra_dec" System unit vector column double nullable slew_mode Slew Mode (EIGEN or POWER) obs.param char nullable status Observation Status (accepted, scheduled, observed, processed, archived) meta.code.status;obs char nullable lii Galactic Longitude (Pointing Position) degree pos.galactic.lon double nullable ra Right Ascension (Pointing Position) degree pos.eq.ra;meta.main double nullable "__row" System index column char nullable data_gap Missing Time within Observation s obs.param int nullable end_time Stop Time of the Observation mjd time.end;obs double nullable nupsdout Metrology Out of Limit Time s obs.param int nullable roll_angle Roll Angle (degrees) degree instr.param;pos.posAng double nullable spacecraft_mode Spacecraft Mode (INERTIAL or STELLAR) obs.param char nullable country Country of Proposal Principal Investigator or Collaboration meta.code;obs.observer char nullable pi_fname First Name of the Principal Investigator of the Proposal meta.id.PI char nullable observation_mode Observation Mode instr.setup char nullable abstract Proposal Abstract meta.abstract char nullable exposure_b FPMB Effective Exposure on Source (s) s time.duration;obs.exposure double nullable "__z_ra_dec" System unit vector column double nullable coordinated Coordinated Observation Observatories meta.note;instr.obsty char nullable issue_flag Boolean Flag Indicates Known Issue within Observation meta.code.qual short nullable