Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 26969

GRB 200203A: Fermi GBM Final Real-time Localization
2020-02-03T03:54:21Z (4 years ago)
Fermi GBM Team at MSFC/Fermi-GBM <>
The Fermi GBM team reports the detection of a likely SHORT GRB

At 03:44:03 UT on 3 Feb 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200203A (trigger 602394248.545582 / 200203156).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 273.7, Dec = 3.2 (J2000 degrees, equivalent to J2000 18h 14m, 3d 12'), with a statistical uncertainty of 24.0 degrees.

The angle from the Fermi LAT boresight is 47.0 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:
Looking for U.S. government information and services? Visit