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GCN Circular 30647

Subject
GRB 210815A: Fermi GBM Final Real-time Localization
Date
2021-08-15T02:34:12Z (3 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 02:23:49 UT on 15 Aug 2021, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 210815A (trigger 650687034.634966 / 210815100).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 351.8, Dec = -30.2 (J2000 degrees, equivalent to J2000 23h 27m, -30d 11'), with a statistical uncertainty of 2.9 degrees.

The angle from the Fermi LAT boresight is 98.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210815100/quicklook/glg_skymap_all_bn210815100.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/bn210815100/quicklook/glg_healpix_all_bn210815100.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210815100/quicklook/glg_lc_medres34_bn210815100.gif
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