MGGAMMADET ivo://nasa.heasarc/mggammadet NASA/GSFC HEASARC Macomb, Gehrels 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Compilation Source This database table contains the slightly revised contents of the detailed Tables 2A - 2G from the General Gamma-Ray Source Catalog of Macomb & Gehrels (1999). It lists details of all known gamma-ray observations within the energy range from 50 keV to ~1 TeV for 314 discrete gamma-ray sources that were listed in Tables 2A - 2G of the published version of this catalog, including all 310 sources listed in the published Summary Table 1, together with 4 sources (2CG 054+01, A0620-00, GX 340+0, and H1822-000) that were listed only in Table 2 of the published catalog but were (presumably accidentally) omitted from Table 1. The positions for the sources in the present database were taken from Table 1 of the General Gamma-Ray Source Catalog. Thus, this table is essentially a compilation of gamma-ray observations of discrete sources as known to the authors as of early 1999. There is another HEASARC database table called the Gamma-Ray Source Summary Catalog (Macomb & Gehrels 1999) or MGGAMMACAT that contains the summary information on these sources that was given in Table 1 of the General Gamma-Ray Source Catalog. As noted above, this is a slightly revised version compared to the published Tables 2A - 2G. The known differences between the HEASARC and published versions are discussed in the HEASARC_Version section of the help documentation. This database table was created by the HEASARC in March 2002 based upon machine-readable versions of Tables 2A-2G of the Macomb & Gehrels (1999) General Gamma-Ray Source Catalog that were supplied by the authors. One duplicate entry was removed from this table in June 2019. This is a service provided by NASA HEASARC . 1999ApJS..120..335M https://heasarc.gsfc.nasa.gov/W3Browse/all/mggammadet.html Archive Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=mggammadet& GET text/xml 180 99999 true 192.06 -83.14 1 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=mggammadet GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_mggammadet&Action=More+Options&Action=Parameter+Search&ConeAdd=1 MASTER CATALOG 1 Gamma-ray public mggammadet Gamma-Ray Source Detailed Catalog (Macomb & Gehrels 1999) name Source 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 instrument Instrument char nullable low_energy Low Energy (MeV) MeV phys.energy double nullable high_energy High Energy (MeV) MeV phys.energy double nullable date_range Date Range (Text) time.start;obs char nullable lii Galactic Longitude degree pos.galactic.lon double nullable photon_flux Photon Flux photon/cm^2/s phot.flux;em.gamma double nullable spectral_index Spectral Index spect.index;meta.modelled char nullable ref_energy Reference Energy (MeV) MeV phys.energy;meta.modelled double nullable photon_flux_limit Flag Indicates Photon Flux Is Upper Limit meta.code;phot.flux;em.gamma char nullable photon_flux_band Photon Flux Band instr.bandpass char nullable photon_flux_flag Flag for Photon Flux meta.code;phot.flux char nullable normalization Normalization cm^-2_s^-1_MeV^-1 phot.flux;stat.param char nullable class Browse Object Classification src.class short nullable ref_code Reference Code meta.ref char nullable break_energy Break Energy (MeV) MeV phys.energy;meta.modelled char nullable bii Galactic Latitude degree pos.galactic.lat double nullable photon_flux_error Error in Photon Flux photon/cm^2/s stat.error;phot.flux;em.gamma double nullable flux_data Photon Flux Data (Original Catalog Entry) phot.flux;em.gamma char nullable spectral_index_flag Spectral Index Flag meta.code;spect.index char 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