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GCN Circular 35156

Subject
GRB 231122A: Fermi GBM Final Real-time Localization
Date
2023-11-22T12:55:01Z (3 months 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 12:44:22 UT on 22 Nov 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231122A (trigger 722349867.684022 / 231122531).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 108.4, Dec = -5.5 (J2000 degrees, equivalent to J2000 07h 13m, -5d 30'), with a statistical uncertainty of 3.8 degrees.

The angle from the Fermi LAT boresight is 87.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231122531/quicklook/glg_skymap_all_bn231122531.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/bn231122531/quicklook/glg_healpix_all_bn231122531.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231122531/quicklook/glg_lc_medres34_bn231122531.gif


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