GRB 230731A: Fermi GBM Final Real-time Localization
Abstract
At 23:39:16 UT on 31 Jul 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230731A (trigger 712539561.432998 / 230731986). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 237.3, Dec = -58.9 (J2000 degrees, equivalent to J2000 15h 49m, -58d 53'), with a statistical uncertainty of 8.3 degrees. The angle from the Fermi LAT boresight is 111.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230731986/quicklook/glg_skymap_all_bn230731986.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230731986/quicklook/glg_healpix_all_bn230731986.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230731986/quicklook/glg_lc_medres34_bn230731986.gif
- Publication:
-
GRB Coordinates Network
- Pub Date:
- July 2023
- Bibcode:
- 2023GCN.34305....1F