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GCN Circular 33877

Subject
GRB 230525A: Fermi GBM Final Localization
Date
2023-05-25T14:54:44Z (9 months ago)
From
Cori Fletcher at USRA <cfletcher@usra.edu>
The Fermi GBM team reports the detection of a likely SHORT GRB

"At 10:46:08 UT on 25 May 2023, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 230525A (trigger 706704373/230525449).

The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 45.27, Dec = 69.35 (J2000 degrees, equivalent to J2000 3h 1m, +69d 20'),
with a statistical uncertainty of 6.75 degrees.

The angle from the Fermi LAT boresight is 19 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230525449/quicklook/glg_skymap_all_bn230525449.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/bn230525449/quicklook/glg_healpix_all_bn230525449.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230525449/quicklook/glg_lc_medres34_bn230525449.gif"


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