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GCN Circular 31434

Subject
GRB 220111A: Fermi GBM Final Real-time Localization
Date
2022-01-11T19:32:17Z (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 LONG GRB

At 19:21:49 UT on 11 Jan 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220111A (trigger 663621714.433092 / 220111807).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 149.1, Dec = 0.5 (J2000 degrees, equivalent to J2000 09h 56m, 0d 30'), with a statistical uncertainty of 1.6 degrees.

The angle from the Fermi LAT boresight is 70.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220111807/quicklook/glg_skymap_all_bn220111807.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/bn220111807/quicklook/glg_healpix_all_bn220111807.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220111807/quicklook/glg_lc_medres34_bn220111807.gif
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