[vsnet-grb-info 25379] GRB 200402C: Fermi GBM Final Localization

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27479
SUBJECT: GRB 200402C: Fermi GBM Final Localization
DATE:    20/04/02 21:07:24 GMT
FROM:    Peter Veres at UAH  <veresp at gmail.com>

The Fermi GBM team reports the detection of a likely LONG GRB.

At 19:46:23.08 UT on 2 Apr 2020, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 200402C (trigger 607549588 / 200402824). This
trigger was initially classified as a particle event by the flight
software, but is in fact a GRB.

The on-ground calculated location, using the Fermi GBM trigger data, is RA
= 226.4, Dec = -8.1 (J2000 degrees, equivalent to J2000 15h 06m, -08d 06'),
with a statistical uncertainty of 9.0 degrees.

The angle from the Fermi LAT boresight is 83 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200402824/quicklook/glg_skymap_all_bn200402824.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/bn200402824/quicklook/glg_healpix_all_bn200402824.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200402824/quicklook/glg_lc_medres34_bn200402824.gif