TITLE:   GCN CIRCULAR
NUMBER:  29194
SUBJECT: GRB 201229B: Fermi GBM Final Real-time Localization
DATE:    20/12/29 15:30:31 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 LONG GRB

At 15:20:12 UT on 29 Dec 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 201229B (trigger 630948017.705592 / 201229639).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 340.4, Dec = -52.0 (J2000 degrees, equivalent to J2000 22h 41m, -52d 00'), with a statistical uncertainty of 1.3 degrees.

The angle from the Fermi LAT boresight is 19.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201229639/quicklook/glg_skymap_all_bn201229639.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/bn201229639/quicklook/glg_healpix_all_bn201229639.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201229639/quicklook/glg_lc_medres34_bn201229639.gif