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GCN Circular 37633

Subject
GRB 240930A: Fermi GBM Final Real-time Localization
Date
2024-09-30T04:18:32Z (4 days 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 04:07:53 UT on 30 Sep 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240930A (trigger 749362078.832228 / 240930172).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 190.7, Dec = -81.9 (J2000 degrees, equivalent to J2000 12h 42m, -81d 54'), with a statistical uncertainty of 1.0 degrees.

The angle from the Fermi LAT boresight is 90.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240930172/quicklook/glg_skymap_all_bn240930172.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/bn240930172/quicklook/glg_healpix_all_bn240930172.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240930172/quicklook/glg_lc_medres34_bn240930172.gif


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