GRB 260213A
GCN Circular 43767
Subject
GRB 260213A: GECAM-B observation of a short burst
Date
2026-02-17T08:42:41Z (a month ago)
From
Xinghao Luo at IHEP <2952704891@qq.com>
Via
Web form
Xing-Hao Luo, Chen-Wei Wang, Shao-Lin Xiong (IHEP) report on behalf of GECAM team:
GECAM-B was triggered on-ground by GRB 260213A, at 2026-02-13T08:23:49.800 UTC (denoted as T0), which is also detected by Fermi/GBM (Fermi GBM team, GCN #43722).
According to the GECAM-B light curves in about 70-6000 keV, this burst mainly consists of a single pulse with a duration (T90) of 1.5 +/-0.7 s.
The GECAM-B light curve can be found here:
https://www.bursthub.cn//admin/static/gecambgrb260213A.png
The 'Amati' relation diagram of GRB 260213A is shown at:
https://www.bursthub.cn//admin/static/gecambgrb260213A_amati.png
Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) mission originally consists of two micro-satellites (GECAM-A and GECAM-B) launched in Dec. 2020. As the third member of GECAM constellation, GECAM-C was launched onboard SATech-01 experimental satellite in July 2022. GECAM mission is funded by the Chinese Academy of Sciences (CAS).
GCN Circular 43722
Subject
GRB 260213A: Fermi GBM Final Localization
Date
2026-02-13T14:20:26Z (a month ago)
From
Elisabetta Bissaldi at Politecnico and INFN Bari <elisabetta.bissaldi@ba.infn.it>
Via
Web form
The Fermi GBM team reports the detection of a likely SHORT GRB
"At 08:23:49.89 UT on 13 February 2026, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 260213A (trigger 792663834/260213350).
The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 244.99, Dec = -18.22 (J2000 degrees, equivalent to J2000 16h 19m, -18d 13'),
with a statistical uncertainty of 11.02 degrees.
The angle from the Fermi LAT boresight is 67 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260213350/quicklook/glg_skymap_all_bn260213350.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260213350/quicklook/glg_healpix_all_bn260213350.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260213350/quicklook/glg_lc_medres34_bn260213350.gif"