GRB 241111A
GCN Circular 38178
Subject
Fermi Gamma-ray Burst Monitor trigger 752995908/241111230 (GRB 241111A) is not a GRB
Date
2024-11-12T16:43:36Z (10 months ago)
From
Ava Myers at NASA GSFC <ava.myers@nasa.gov>
Via
Web form
A. Myers (NPP/GSFC) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:
"The Fermi Gamma-ray Burst Monitor (GBM) trigger 752995908/241111230 (GRB 241111A, GCN 38159) at 05:31:43.08 UT on 11 November 2024, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is likely due to local particles."
GCN Circular 38159
Subject
GRB 241111A: Fermi GBM Final Real-time Localization
Date
2024-11-11T05:42:32Z (10 months ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
Via
email
The Fermi GBM team reports the detection of a likely LONG GRB
At 05:31:43 UT on 11 Nov 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 241111A (trigger 752995908.077622 / 241111230).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 127.1, Dec = -69.3 (J2000 degrees, equivalent to J2000 08h 28m, -69d 17'), with a statistical uncertainty of 1.0 degrees.
The angle from the Fermi LAT boresight is 1.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241111230/quicklook/glg_skymap_all_bn241111230.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241111230/quicklook/glg_healpix_all_bn241111230.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241111230/quicklook/glg_lc_medres34_bn241111230.gif