TITLE:   GCN CIRCULAR
NUMBER:  32209
SUBJECT: GRB 220617A: Fermi GBM Final Real-time Localization
DATE:    22/06/17 18:41:43 GMT
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 18:31:12 UT on 17 Jun 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220617A (trigger 677183477.902462 / 220617772).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 155.8, Dec = 21.2 (J2000 degrees, equivalent to J2000 10h 23m, 21d 11'), with a statistical uncertainty of 2.7 degrees.

The angle from the Fermi LAT boresight is 41.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220617772/quicklook/glg_skymap_all_bn220617772.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220617772/quicklook/glg_healpix_all_bn220617772.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220617772/quicklook/glg_lc_medres34_bn220617772.gif