[vsnet-grb-info 25378] GRB 200402B: Fermi GBM Final Localization

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27478
SUBJECT: GRB 200402B: Fermi GBM Final Localization
DATE:    20/04/02 17:36:11 GMT
FROM:    Peter Veres at UAH  <veresp at gmail.com>

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

At 16:30:29.65 UT on 2 Apr 2020, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 200402B (trigger 607537834 / 200402688). 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
= 190.1, Dec = -6.6 (J2000 degrees, equivalent to J2000 12h 40m, -06d 36'),
with a statistical uncertainty of 6.5 degrees.

The angle from the Fermi LAT boresight is 88 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200402688/quicklook/glg_skymap_all_bn200402688.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/bn200402688/quicklook/glg_healpix_all_bn200402688.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200402688/quicklook/glg_lc_medres34_bn200402688.gif