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GCN Circular 37273

Subject
GRB 240825A: Fermi GBM Final Real-time Localization
Date
2024-08-25T16:03:37Z (a month ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
Via
email
The Fermi GBM team reports the detection of a likely LONG GRB

At 15:53:00 UT on 25 Aug 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240825A (trigger 746293985.085054 / 240825662).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 341.6, Dec = 5.9 (J2000 degrees, equivalent to J2000 22h 46m, 5d 54'), with a statistical uncertainty of 1.0 degrees.

The angle from the Fermi LAT boresight is 47.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240825662/quicklook/glg_skymap_all_bn240825662.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240825662/quicklook/glg_healpix_all_bn240825662.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240825662/quicklook/glg_lc_medres34_bn240825662.gif


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