GCN Circular 36382

C. de Barra (UCD) and C. Meegan (UAH) report on behalf of the Fermi Gamma-ray Burst Monitor Team:

At 05:28:41.88 UT on 02 May 2024, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 240502A (trigger 736320526/240502228)
which was also detected by INTEGRAL (S.Mereghetti et al. 2024, GCN 36369
Not found
 
 
).

The Fermi GBM Final Position location (Fermi GBM Team 2024, GCN 36368
Not found
 
 
) is consistent with the INTEGRAL position.
The angle from the Fermi LAT boresight is 89.0 degrees

The GBM light curve contains a single emission episode with a duration (T90)
of about 23 s (50-300 keV). The time-averaged spectrum from T0-4.1 to T0+20.5 s
is best fit by is best fit by a Comptonized Epeak function with Epeak = 151.20 +/- 21.40 keV,
and alpha = 1.56 +/- 1.10

The event fluence (10-1000 keV) in this time interval is (1.3 +/- 0.2)E-06 erg/cm^2. 
The 1-sec peak photon flux measured starting from T0+0.38 s in the 10-1000 keV band is 0.9 +/- 0.2 ph/s/cm^2. 

The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog:
https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html
For Fermi GBM data and info, please visit the official Fermi GBM Support Page:
https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/