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GCN Circular 33058

Subject
GRB 221215B: Fermi GBM Final Real-time Localization
Date
2022-12-15T16:19:53Z (a year 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 LONG GRB

At 16:09:34 UT on 15 Dec 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 221215B (trigger 692813379.070912 / 221215673).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 23.2, Dec = 32.0 (J2000 degrees, equivalent to J2000 01h 32m, 32d 00'), with a statistical uncertainty of 4.1 degrees.

The angle from the Fermi LAT boresight is 35.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221215673/quicklook/glg_skymap_all_bn221215673.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/bn221215673/quicklook/glg_healpix_all_bn221215673.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221215673/quicklook/glg_lc_medres34_bn221215673.gif
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