[vsnet-grb-info 26457] GRB 201004A: Fermi GBM Final Localization

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28557
SUBJECT: GRB 201004A: Fermi GBM Final Localization
DATE:    20/10/04 13:23:10 GMT
FROM:    Andreas von Kienlin at MPE  <azk at mpe.mpg.de>

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

At 08:45:57.61 UT on 4 Oct 2020, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 201004A (trigger 623493962/ 201004365). This
trigger was initially classified as Distant Particles event by the flight
software, but is in fact a GRB.

The on-ground calculated location, using the Fermi GBM trigger data, is RA =
30.1, Dec = 61.2(J2000 degrees, equivalent to J2000 2 h 00 m, 61 d 12'),
with a statistical uncertainty of 4.3 degrees.

The angle from the Fermi LAT boresight is 142 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201004365/q
uicklook/glg_skymap_all_bn201004365.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/bn201004365/q
uicklook/glg_healpix_all_bn201004365.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201004365/q
uicklook/glg_lc_medres34_bn201004365.gif