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GCN Circular 29115

GRB 201222A: Fermi GBM Final Real-time Localization
2020-12-22T00:22:39Z (3 years ago)
Fermi GBM Team at MSFC/Fermi-GBM <>
The Fermi GBM team reports the detection of a likely SHORT GRB

At 00:12:18 UT on 22 Dec 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 201222A (trigger 630288743.68768 / 201222009).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 215.7, Dec = 13.5 (J2000 degrees, equivalent to J2000 14h 22m, 13d 30'), with a statistical uncertainty of 8.1 degrees.

The angle from the Fermi LAT boresight is 6.0 degrees.

The skymap can be found here:

The HEALPix FITS file, including the estimated localization systematic, can be found here:

The GBM light curve can be found here:
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