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GCN Circular 32525

Subject
GRB 220907A: Fermi GBM Final Real-time Localization
Date
2022-09-07T14:15:57Z (2 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely SHORT GRB

At 14:05:26 UT on 7 Sep 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220907A (trigger 684252331.480966 / 220907587).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 269.6, Dec = -18.7 (J2000 degrees, equivalent to J2000 17h 58m, -18d 41'), with a statistical uncertainty of 6.9 degrees.

The angle from the Fermi LAT boresight is 75.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220907587/quicklook/glg_skymap_all_bn220907587.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220907587/quicklook/glg_healpix_all_bn220907587.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220907587/quicklook/glg_lc_medres34_bn220907587.gif
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