TITLE:   GCN CIRCULAR
NUMBER:  33887
SUBJECT: GRB 230529A: Fermi GBM Final Real-time Localization
DATE:    23/05/29 08:05:21 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 07:54:45 UT on 29 May 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230529A (trigger 707039690.316368 / 230529330).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 346.8, Dec = -50.0 (J2000 degrees, equivalent to J2000 23h 07m, -50d 00'), with a statistical uncertainty of 12.7 degrees.

The angle from the Fermi LAT boresight is 42.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230529330/quicklook/glg_skymap_all_bn230529330.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230529330/quicklook/glg_healpix_all_bn230529330.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230529330/quicklook/glg_lc_medres34_bn230529330.gif