TITLE:   GCN CIRCULAR
NUMBER:  27609
SUBJECT: GRB 200420: Fermi GBM Final Localization Correction
DATE:    20/04/20 09:15:33 GMT
FROM:    Andreas von Kienlin at MPE  <azk@mpe.mpg.de>

C. Malacaria (NASA-MSFC/USRA) reports on behalf of the Fermi GBM Team:

"
At 02:32:58.60 UT on 20 Apr 2020, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 200420 (trigger 609042783 / 200420106).

The on-ground calculated location, using the Fermi GBM trigger data, is RA =
304.6, Dec = -20.3
(J2000 degrees, equivalent to J2000 20h 18m, -20d 16'), with a statistical
uncertainty of 27.3 degrees.
The angle from the Fermi LAT boresight is 11.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200420106/q
uicklook/glg_skymap_all_bn200420106.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/bn200420106/q
uicklook/glg_healpix_all_bn200420106.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200420106/q
uicklook/glg_lc_medres34_bn200420106.gif
"