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GCN Circular 33778

Subject
GRB 230512A: Fermi GBM Final Localization
Date
2023-05-12T11:59:08Z (9 months ago)
From
R. Hamburg at CNRS/IJCLab <rachel.k.hamburg@gmail.com>
The Fermi GBM team reports the detection of a Short Bright GRB.

At 06:27:45 UT on 12 May 2023, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 230512A (trigger 705565670/230512269).

The on-ground calculated location, using the Fermi GBM trigger data, is RA
= 277.62, Dec = +53.87 (J2000 degrees, equivalent to J2000 18h 30m, +53d
53'), with a statistical uncertainty of 1 degree.

The angle from the Fermi LAT boresight is 26 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230512269/quicklook/glg_skymap_all_bn230512269.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/bn230512269/quicklook/glg_healpix_all_bn230512269.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230512269/quicklook/glg_lc_medres34_bn230512269.gif

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