[vsnet-grb-info 26975] GRB 201217A: Fermi GBM Final Localization

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  29078
SUBJECT: GRB 201217A: Fermi GBM Final Localization
DATE:    20/12/17 22:35:27 GMT
FROM:    Joshua Wood at MSFC/Fermi-GBM  <joshua.r.wood at nasa.gov>

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

At 02:35:03.51 UT on 17 Dec 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 201217A (trigger 629865308 / 201217108).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 273.3, Dec = -65.1 (J2000 degrees, equivalent to J2000 18h 13m, -65d 05'), with a statistical uncertainty of 3.2 degrees.

The angle from the Fermi LAT boresight is 82.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201217108/quicklook/glg_skymap_all_bn201217108.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/bn201217108/quicklook/glg_healpix_all_bn201217108.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201217108/quicklook/glg_lc_medres34_bn201217108.gif