GCN Circular 28261
Subject
GRB 200818A: Fermi GBM Final Localization
Date
2020-08-19T01:10:59Z (5 years ago)
From
Rachel Hamburg at UAH <rkh0007@uah.edu>
The Fermi GBM team reports the detection of a likely long GRB.
At 23:57:18.34 UT on 18 August 2020, the Fermi Gamma-ray Burst Monitor
(GBM) triggered and located GRB 200818A (trigger 619487843 / 200818889).
The on-ground calculated location, using the Fermi GBM trigger data, is RA
= 207.6, Dec = +22.1(J2000 degrees, equivalent to J2000 +13h 50m, +22d
07'), with a statistical uncertainty of 12 degrees.
The angle from the Fermi LAT boresight is 67 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200818889/quicklook/glg_skymap_all_bn200818889.png
The HEALPix FITS file, including the estimated localization systematic, can
be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200818889/quicklook/glg_healpix_all_bn200818889.fit