//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 32399 SUBJECT: GRB 220715A: Fermi GBM Final Real-time Localization DATE: 22/07/15 08:59:57 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 08:49:40 UT on 15 Jul 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220715A (trigger 679567785.342096 / 220715368). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 171.2, Dec = -31.1 (J2000 degrees, equivalent to J2000 11h 24m, -31d 06'), with a statistical uncertainty of 7.5 degrees. The angle from the Fermi LAT boresight is 108.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220715368/quicklook/glg_skymap_all_bn220715368.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220715368/quicklook/glg_healpix_all_bn220715368.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220715368/quicklook/glg_lc_medres34_bn220715368.gif //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 32401 SUBJECT: GRB 220715A: AGILE/MCAL detection DATE: 22/07/15 15:24:26 GMT FROM: Alessandro Ursi at INAF/IAPS A. Ursi (INAF/IAPS), F. Longo (Univ. Trieste and INFN Trieste), F. Verrecchia, C. Pittori (SSDC, and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A. Argan, M. Cardillo, C. Casentini, Y. Evangelista, L. Foffano, E. Menegoni, G. Piano (INAF/IAPS), F. Lucarelli (SSDC, and INAF/OAR), A. Bulgarelli, V. Fioretti, F. Fuschino, N. Parmiggiani (INAF/OAS-Bologna), M. Marisaldi (INAF/OAS-Bologna, and Bergen University), M. Pilia, A. Trois (INAF/OA-Cagliari), I. Donnarumma (ASI), A. Giuliani (INAF/IASF-Mi), report on behalf of the AGILE Team: The AGILE Mini-CALorimeter (MCAL) detected the GRB 220715A at T0 = 2022-07-15 08:49:40.23 +/- 0.01 s (UTC), reported by Fermi GBM (GCN #32399). The event lasted about 0.40 s and released a total number of 300 counts in the MCAL detector (in the 0.4-100 MeV energy range), above an average background rate of 480 Hz. The MCAL light curve can be found at http://www.agilescienceapp.it/notices/079170_GRB_MCAL_584959780.229917.png . The time-integrated spectrum of the burst, from T0-0.10 s to T0+0.30 s, can be fitted in the energy range 0.4-10 MeV with a power-law with ph.ind. = -2.06 (-0.367,+0.49), resulting in a reduced chi-squared of 0.86 (24 d.o.f.) and a fluence of 6.20e-07 erg/cm^2 (90% confidence level), in the same energy range. At the T0, the event was 65 deg off-axis. The AGILE-MCAL detector is a CsI detector with a 4 pi FoV, sensitive in the energy range 0.4-100 MeV. Additional analysis of AGILE data is in progress. Automatic MCAL GRB alert Notices can be found at: https://gcn.gsfc.nasa.gov/agile_mcal.html. //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 32417 SUBJECT: GRB 220715A: CALET Gamma-Ray Burst Monitor detection DATE: 22/07/19 14:41:00 GMT FROM: Yuta Kawakubo at Louisiana State U./CALET T. Tamura (Kanagawa U), A. Yoshida, T. Sakamoto, S. Sugita (AGU), Y. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN), Y. Asaoka (ICRR), S. Torii, Y. Akaike, K. Kobayashi (Waseda U), Y. Shimizu (Kanagawa U), N. Cannady (GSFC/UMBC), M. L. Cherry (LSU), S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena), and the CALET collaboration: The long GRB 220715A (Fermi GBM Final Real-time Localization: Fermi GBM team, GCN Circ. 32399; AGILE/MCAL detection: Ursi et al., GCN Circ 32401) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 08:49:37.333 UTC on 15 July 2022 (http://cgbm.calet.jp/cgbm_trigger/flight/1341910167/index.html). The burst signal was seen by only SGM detector. The burst light curve shows a weak signal which starts at T+0.8 sec, peaks at T+3.8 sec, and ends at T+12.7 sec. The T90 and T50 durations measured by the SGM data are 10.0 +/- 2.0 sec and 6.0 +/- 2.0 sec (40-1000 keV), respectively. The ground processed light curve is available at http://cgbm.calet.jp/cgbm_trigger/ground/1341910167/ The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at the Waseda University.