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This page lists all entries on GRB231101A in GRBweb

Summary Fermi GBM GCN 34924 GCN 34929

Summary table
Variable	Value	Source
GRB_name_Fermi	GRB231101099
T0	2:23:13.728 UTC	Fermi_GBM
ra	137.0600°	Fermi_GBM
decl	13.2600°	Fermi_GBM
pos_error	9.63e+00°	Fermi_GBM
T90	9.216 s	Fermi_GBM
T90_error	3.482 s	Fermi_GBM
T90_start	2:23:13.728 UTC	Fermi_GBM
fluence	4.27e-07 erg/cm²	Fermi_GBM
fluence_error	4.22e-08 erg/cm²	Fermi_GBM
T100	9.216 s
GBM_located	True
mjd	60249.09946444444	Fermi_GBM

Fermi GBM table
GRB_name_Fermi	GRB231101099
trigger_name	bn231101099
ra	137.0600°
decl	13.2600°
pos_error	9.63e+00°
datum	2023-11-01
t_trigger	2:23:16.800 UTC
T90	9.216 s
T90_error	3.482 s
T90_start	2:23:13.728 UTC
fluence	4.27e-07 erg/cm²
fluence_error	4.22e-08 erg/cm²
flux_1024	1.32e+00 erg/cm²/s
flux_1024_error	2.08e-01 erg/cm²/s
flux_1024_time	-1.09e+00 erg/cm²/s
flux_64	3.00e+00 erg/cm²/s
flux_64_error	1.46e+00 erg/cm²/s

GCN 34924 table
GRB_name	GRB231101A
GCN_number	34924
Detection_method	Fermi GBM final loc
t_trigger	2:23:16 UTC
ra	137.1000°
decl	13.3000°
Circular_text	TITLE: GCN CIRCULAR NUMBER: 34924 SUBJECT: GRB 231101A: Fermi GBM Final Real-time Localization DATE: 23/11/01 02:33:51 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 02:23:16 UT on 1 Nov 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231101A (trigger 720498201.799648 / 231101099). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 137.1, Dec = 13.3 (J2000 degrees, equivalent to J2000 09h 08m, 13d 18'), with a statistical uncertainty of 13.2 degrees. The angle from the Fermi LAT boresight is 86.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231101099/quicklook/glg_skymap_all_bn231101099.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/bn231101099/quicklook/glg_healpix_all_bn231101099.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231101099/quicklook/glg_lc_medres34_bn231101099.gif

GCN 34929 table
GRB_name	GRB231101A
GCN_number	34929
Detection_method	Fermi GBM Other
Circular_text	TITLE: GCN CIRCULAR NUMBER: 34929 SUBJECT: GRB 231101A: Glowbug gamma-ray detection DATE: 23/11/02 15:13:39 GMT FROM: C.C. Cheung at Naval Research Lab C.C. Cheung, M. Kerr, J. E. Grove, R. Woolf (NRL), A. Goldstein (USRA), C.A. Wilson-Hodge (MSFC), and M.S. Briggs (UAH) report: The Glowbug gamma-ray telescope [1,2], operating on the International Space Station, reports the detection of GRB 231101A, which was also detected by Fermi/GBM (GCN 34924). Using an adaptive window with a resolution of 32-ms, the burst onset is determined to be 2023-11-01 02:23:14.776 with a duration of about 4 s and a total significance of about 6.4 sigma. The light curve comprises a single peak. Using a standard power-law function with an exponential high-energy cutoff [3] to model the emission over this duration results in a photon index dN/dE~E^x of x=-0.8 and a cutoff energy ("Epeak") of 1023 keV. The modeled 10-10000 keV fluence is 4.1e-07 erg/cm^2. The analysis results presented here are preliminary and use a response function that lacks a detailed characterization of the surrounding passive structure of the ISS. Glowbug is a NASA-funded technology demonstrator for sensitive, low-cost gamma-ray transient telescopes developed, built, and operated by the U.S. Naval Research Laboratory (NRL) with support from the University of Alabama in Huntsville, USRA, and NASA MSFC. It was launched on 2023 March 15 aboard the Department of Defense Space Test Program’s STP-H9 to the ISS. The detector comprises 12 large-area (15 cm x 15 cm) CsI:Tl panels covering the surface of a half cube, and two hexagonal (5-cm diameter, 10-cm length) CLLB scintillators, giving it a large field of view (instantaneous FoV ~2/3 sky) over a wide energy band of 50 keV to >2 MeV. [1] Grove, J.E. et al. 2020, Proc. Yamada Conf. LXXI, arXiv:2009.11959 [2] Woolf, R.S. et al. 2022, Proc. SPIE, 12181, id. 121811O [3] Goldstein, A. et al. 2020, ApJ 895, 40, arXiv :1909.03006 Distribution Statement A: Approved for public release. Distribution is unlimited.