Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 25642

Subject
GRB 190904A: Fermi GBM Final Real-time Localization
Date
2019-09-04T04:21:19Z (5 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 LONG GRB

At 04:11:00 UT on 4 Sep 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190904A (trigger 589263065.737252 / 190904174).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 35.9, Dec = -25.0 (J2000 degrees, equivalent to J2000 02h 23m, -25d 00'), with a statistical uncertainty of 12.7 degrees.

The angle from the Fermi LAT boresight is 98.0 degrees.

The skymap can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190904174/quicklook/glg_skymap_all_bn190904174.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190904174/quicklook/glg_healpix_all_bn190904174.fit

The GBM light curve can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190904174/quicklook/glg_lc_medres34_bn190904174.gif
Looking for U.S. government information and services? Visit USA.gov