GRB230211A

This page lists all entries on GRB230211A in GRBweb

Summary GCN 33316 GCN 33317

Summary table
Variable Value Source
T0 17:36:11 UTC GCN_circulars,Fermi GBM final loc
ra 59.2000° GCN_circulars,Fermi GBM final loc
decl 51.7000° GCN_circulars,Fermi GBM final loc
GBM_located True
mjd 59986.733460648145 GCN_circulars,Fermi GBM final loc
GCN 33316 table
GRB_name GRB230211A
GCN_number 33316
Detection_method Fermi GBM final loc
t_trigger 17:36:11 UTC
ra 59.2000°
decl 51.7000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 33316 SUBJECT: GRB 230211A: Fermi GBM Final Real-time Localization DATE: 23/02/11 17:46:37 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 17:36:11 UT on 11 Feb 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230211A (trigger 697829776.865304 / 230211733). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 59.2, Dec = 51.7 (J2000 degrees, equivalent to J2000 03h 56m, 51d 42'), with a statistical uncertainty of 14.6 degrees. The angle from the Fermi LAT boresight is 77.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230211733/quicklook/glg_skymap_all_bn230211733.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/bn230211733/quicklook/glg_healpix_all_bn230211733.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230211733/quicklook/glg_lc_medres34_bn230211733.gif
GCN 33317 table
GRB_name GRB230211A
GCN_number 33317
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 33317 SUBJECT: 230211A is not a GRB DATE: 23/02/11 20:05:44 GMT FROM: Suraj Poolakkil at UAH S. Poolakkil (UAH) reports on behalf of the Fermi Gamma-ray Burst Monitor Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 697829776/230211733 at 17:36:11.87 UT on 11 February 2023, tentatively classified as GRB 230211A (GCN 33316), is in fact not due to a GRB. This trigger is likely due to LS V +44 17 / RX J0440.9+4431." -- Suraj Poolakkil Fermi GBM Graduate Research Assistant Dept. of Space Science University of Alabama in Huntsville