[vsnet-grb-info 25532] GRB 200423A: Fermi GBM Final Real-time Localization

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27632
SUBJECT: GRB 200423A: Fermi GBM Final Real-time Localization
DATE:    20/04/23 14:04:33 GMT
FROM:    Fermi GBM Team at MSFC/Fermi-GBM  <do_not_reply at GIOC.nsstc.nasa.gov>

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

At 13:54:11 UT on 23 Apr 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200423A (trigger 609342856.372534 / 200423579).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 325.0, Dec = 66.8 (J2000 degrees, equivalent to J2000 21h 40m, 66d 47'), with a statistical uncertainty of 11.2 degrees.

The angle from the Fermi LAT boresight is 55.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200423579/quicklook/glg_skymap_all_bn200423579.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/bn200423579/quicklook/glg_healpix_all_bn200423579.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200423579/quicklook/glg_lc_medres34_bn200423579.gif