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GRB 241011A

GCN Circular 37775

Subject

Fermi Gamma-ray Burst Monitor GRB trigger 750372658/241011869 (GRB 241011A) is not a GRB

Date

2024-10-11T21:14:36Z (a year ago)

Edited On

2024-10-13T22:26:10Z (a year ago)

From

Ava Myers at NASA GSFC <ava.myers@nasa.gov>

Edited By

Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of 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 750372658/241011869 (GRB 241011A; GCN 37774) at 20:50:53.89 UT on 11 October 2024, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is likely due to local particles."

GCN Circular 37774

Subject

GRB 241011A: Fermi GBM Final Real-time Localization

Date

2024-10-11T21:01:25Z (a year ago)

From

Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>

Via

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

At 20:50:53 UT on 11 Oct 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 241011A (trigger 750372658.888186 / 241011869).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 68.6, Dec = -29.9 (J2000 degrees, equivalent to J2000 04h 34m, -29d 53'), with a statistical uncertainty of 7.0 degrees.

The angle from the Fermi LAT boresight is 73.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241011869/quicklook/glg_skymap_all_bn241011869.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/bn241011869/quicklook/glg_healpix_all_bn241011869.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241011869/quicklook/glg_lc_medres34_bn241011869.gif