TITLE: GCN CIRCULAR NUMBER: 36361 SUBJECT: GRB240430A: Fermi GBM Final Localization DATE: 24/05/01 14:58:25 GMT FROM: Cuán de Barra at UCD cuan.debarra@ucdconnect.ie

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

At 19:21:19.72 UT on 30 Apr 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240430A (trigger 736197684 / 240430806).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 201.0, Dec = 1.5 (J2000 degrees, equivalent to J2000 +13h 24m, +01d 32') with a statistical uncertainty of 2.6 degrees.

The angle from the Fermi LAT boresight is 62 degrees.

The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240430806/q...

The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240430806/q...

The GBM light curve can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240430806/qu...

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