GRB 210619A
GCN Circular 30257
Subject
GRB 210619A: Fermi GBM Final Real-time Localization
Date
2021-06-19T12:56:07Z (4 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely SHORT GRB
At 12:45:43 UT on 19 Jun 2021, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 210619A (trigger 645799548.729736 / 210619532).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 73.9, Dec = 12.5 (J2000 degrees, equivalent to J2000 04h 55m, 12d 30'), with a statistical uncertainty of 1.6 degrees.
The angle from the Fermi LAT boresight is 93.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210619532/quicklook/glg_skymap_all_bn210619532.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210619532/quicklook/glg_healpix_all_bn210619532.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210619532/quicklook/glg_lc_medres34_bn210619532.gif
GCN Circular 30258
Subject
GRB 210619A: BALROG localization (Fermi Trigger 645799548 / GRB 210619532)
Date
2021-06-19T13:06:01Z (4 years ago)
From
Jochen Greiner at MPE,Garching <jcg@mpe.mpg.de>
F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
645799548 at 12:45:43 on 19 June 2021 were automatically fitted for spectrum
and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427;
Berlato et al. 2019, ApJ 873, 60).
The best-fit position (1 sigma statistical errors) is:
RA(2000.0) = 69.9+/-1.8 deg
Decl.(2000.0) = 8.8+/-1.7 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210619532/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210619532/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210619532/json