GRB221029A

This page lists all entries on GRB221029A in GRBweb

Summary Fermi GBM GCN 32890 GCN 32891 GCN 32900 GCN 32903 GCN 32908

Summary table
Variable Value Source
GRB_name_Fermi GRB221029045
T0 1:05:27.310 UTC GCN_circulars,Fermi GBM Det
ra 53.2500° Fermi_GBM
decl 44.8800° Fermi_GBM
pos_error 4.45e+00° Fermi_GBM
T90 27.648 s Fermi_GBM
T90_error 0.362 s Fermi_GBM
T90_start 1:05:27.569 UTC Fermi_GBM
fluence 2.56e-05 erg/cm² Fermi_GBM
fluence_error 2.84e-08 erg/cm² Fermi_GBM
T100 27.907 s
GBM_located True
mjd 59881.045454976855 GCN_circulars,Fermi GBM Det
Fermi GBM table
GRB_name_Fermi GRB221029045
trigger_name bn221029045
ra 53.2500°
decl 44.8800°
pos_error 4.45e+00°
datum 2022-10-29
t_trigger 1:05:27.313 UTC
T90 27.648 s
T90_error 0.362 s
T90_start 1:05:27.569 UTC
fluence 2.56e-05 erg/cm²
fluence_error 2.84e-08 erg/cm²
flux_1024 3.55e+01 erg/cm²/s
flux_1024_error 4.71e-01 erg/cm²/s
flux_1024_time 3.20e-01 erg/cm²/s
flux_64 4.68e+01 erg/cm²/s
flux_64_error 2.07e+00 erg/cm²/s
GCN 32890 table
GRB_name GRB221029A
GCN_number 32890
Detection_method Fermi GBM Det
t_trigger 1:05:27.800 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 32890 SUBJECT: GRB 221029A: Detection by GRBAlpha DATE: 22/10/29 21:48:23 GMT FROM: Jakub Ripa at Masaryk University <245487@mail.muni.cz> J. Ripa (Masaryk U.), A. Pal (Konkoly Observatory), N. Werner (Masaryk U.), M. Ohno, H. Takahashi (Hiroshima U.), L. Meszaros, B. Csak (Konkoly Observatory), M. Dafcikova, F. Munz, N. Husarikova, J.-P. Breuer, M. Topinka, F. Hroch (Masaryk U.), T. Urbanec, M. Kasal, A. Povalac (Brno U. of Technology), J. Hudec, J. Kapus, M. Frajt (Spacemanic s.r.o), R. Laszlo, M. Koleda (Needronix s.r.o), M. Smelko, P. Hanak, P. Lipovsky (Technical U. of Kosice), G. Galgoczi (Wigner Research Center/Eotvos U.), Y. Uchida, H. Poon, H. Matake (Hiroshima U.), N. Uchida (ISAS/JAXA), T. Bozoki (Eotvos U.), G. Dalya (Eotvos U.), T. Enoto (Kyoto U.), Zs. Frei (Eotvos U.), G. Friss (Eotvos U.), Y. Fukazawa, K. Hirose (Hiroshima U.), S. Hisadomi (Nagoya U.), Y. Ichinohe (Rikkyo U.), K. Kapas (Eotvos U.), L. L. Kiss (Konkoly Observatory), T. Mizuno (Hiroshima U.), K. Nakazawa (Nagoya U.), H. Odaka (Univ of Tokyo), J. Takatsy (Eotvos U.), K. Torigoe (Hiroshima U.), N. Kogiso, M. Yoneyama (Osaka Metropolitan U.), M. Moritaki (U. Tokyo), T. Kano (U. Michigan) -- the GRBAlpha collaboration. The long-duration GRB 221029A (Fermi-GBM detection trigger 688698332/221029045; INTEGRAL/SPI-ACS detection peak at about 2022-10-29 01:05:28) was detected by the GRBAlpha 1U CubeSat (Pal et al. Proc. SPIE 2020). The 9.8 sigma detection was confirmed at the peak time 2022-10-29 01:05:27.8 UTC. The GRB has the T90 duration of 36 s. The light curve obtained by GRBAlpha is available here: https://grbalpha.konkoly.hu/static/share/GRB221029A_GCN_GRBAlpha.pdf GRBAlpha, launched on 2021 March 22, is a demonstration mission for a future CubeSat constellation (Werner et al. Proc. SPIE 2018). Its detector consists of a 75 x 75 x 5 mm^3 CsI(Tl) scintillator read out by a SiPM array, covering the energy range from ~50 keV to ~1000 keV. To increase the duty cycle and the downlink rate, we are continuously upgrading the on-board data acquisition software stack. The ground segment is also supported by the radio amateur community and it takes advantage of the SatNOGS network for increased data downlink volume.
GCN 32891 table
GRB_name GRB221029A
GCN_number 32891
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 32891 SUBJECT: GRB 221029A: Swift/BAT-GUANO detection outside the coded FOV DATE: 22/10/29 22:42:43 GMT FROM: Aaron Tohuvavohu at U Toronto James DeLaunay (UAlabama), Aaron Tohuvavohu (U Toronto), Gayathri Raman (PSU), Jamie A. Kennea (PSU), Tyler Parsotan (GSFC/UMBC) report: Swift/BAT did not localize GRB 221029A onboard (T0: 2022-10-29T01:05:27 UTC, GECAM trig 49, Fermi/GBM trig 688698332, GRBAlpha GCN 32890). The GECAM notice, distributed in near real-time, triggered the Swift Mission Operations Center operated Gamma-ray Urgent Archiver for Novel Opportunities (GUANO; Tohuvavohu et al. 2020, ApJ, 900, 1). Upon trigger by this notice, GUANO sent a command to the Swift Burst Alert Telescope (BAT) to save 200 seconds of BAT event-mode data from [-50,+150] seconds around the time of the burst. All the requested event mode data was delivered to the ground. The BAT likelihood search, NITRATES (DeLaunay + Tohuvavohu, arXiv:2111.01769), detects the burst with a sqrt(TS) of 51.6 in a 2.048 s analysis time bin. NITRATES results indicate a burst coming from outside the FOV, with DeltaLLHOut of -60. The NITRATES best fit sky location is consistent with the Fermi/GBM localization. See Section 9.1 and Figure 20 in the NITRATES paper for brief descriptions and interpretation of sqrt(TS), DeltaLLHPeak, and DeltaLLHOut. GUANO is a fully autonomous, extremely low latency, spacecraft commanding pipeline designed for targeted recovery of BAT event mode data around the times of compelling astrophysical events to enable more sensitive GRB searches. A live reporting of Swift/BAT event data recovered by GUANO can be found at: https://www.swift.psu.edu/guano/
GCN 32900 table
GRB_name GRB221029A
GCN_number 32900
Detection_method Fermi GBM Other
ra 53.3000°
decl -44.9000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 32900 SUBJECT: GRB 221029A: Fermi GBM Final Localization DATE: 22/10/31 13:42:50 GMT FROM: Joe Mangan at UCD The Fermi GBM team reports the detection of a likely Long GRB. "At 01:05:27.31 UT on 29 October 2022, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB221029A (trigger 688698332 / 221029045). The on-ground calculated location, using the GBM trigger data, is RA = 53.3, DEC = -44.9 (J2000 degrees, equivalent to 3h 33m, -44d 54'), with a statistical uncertainty of 1 degrees (radius, 1-sigma containment, statistical only; there is additionally a systematic error which we have characterized as a core-plus-tail model, with 90% of GRBs having a 3.7 deg error and a small tail suffering a larger than 10 deg systematic error. [Connaughton et al. 2015, ApJS, 216, 32] ). The angle from the Fermi LAT boresight at the GBM trigger time is 72 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221029045/quicklook/glg_skymap_all_bn221029045.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/bn221029045/quicklook/glg_healpix_all_bn221029045.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221029045/quicklook/glg_lc_medres34_bn221029045.gif
GCN 32903 table
GRB_name GRB221029A
GCN_number 32903
Detection_method Fermi GBM Det
t_trigger 1:05:27.310 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 32903 SUBJECT: GRB 221029A: Fermi GBM observation DATE: 22/11/01 13:34:55 GMT FROM: Joe Mangan at UCD J. Mangan (UCD), R. Dunwoody (UCD) and C. Meegan (UAH), report on behalf of the Fermi GBM Team: At 01:05:27.31 UT on 29 October 2022, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 221029A (trigger 688698332 / 21029045). The Fermi GBM Final Real-time Localization is reported in GCN 32900. The GBM light curve consists of three emission episodes with a duration (T90) of about 27.7 s (50-300 keV). The time-averaged spectrum from T0+0.003 s to T0+28.416 s is best fit by a Band function with Epeak = 130.7 +/- 6.3 keV, alpha = -1.12 +/- 0.03, and beta = -2.15 +/- 0.04 The event fluence (10-1000 keV) in this time interval is (2.69 +/- 0.04)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0+0.32 s in the 10-1000 keV band is 35.5 +/- 0.5 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog: https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/
GCN 32908 table
GRB_name GRB221029A
GCN_number 32908
Detection_method CALET
Circular_text TITLE: GCN CIRCULAR NUMBER: 32908 SUBJECT: GRB 221029A: CALET Gamma-Ray Burst Monitor detection DATE: 22/11/04 04:08:43 GMT FROM: Yuta Kawakubo at Louisiana State U./CALET S. Ricciarini (U of Florence), 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, T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC), M. L. Cherry (LSU), P. S. Marrocchesi (U of Siena), and the CALET collaboration: The long GRB 221029A (Detection by GRBAlpha: Ripa et al., GCN Circ. 32890; Swift/BAT-GUANO detection: DeLaunay et al., GCN Circ. 32891; Fermi GBM Final Localization: Fermi GBM team, GCN Circ. 32900; Fermi GBM observation: Mangan et al., GCN Circ. 32903) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 01:05:26.60 UTC on 29 October 2022 (http://cgbm.calet.jp/cgbm_trigger/flight/1351040741/index.html). The burst signal was seen by all CGBM detectors. No real-time CGBM GCN notice was distributed about this trigger because the real-time communication from the ISS was off (loss of signal). The burst light curve shows a multi-peaked structure that starts at T+0.2 sec, peaks at T+1.6 sec, and ends at T+32.4 sec. The T90 and T50 durations measured by the SGM data are 27.6 +/- 0.8 sec and 12.7 +/- 1.4 sec (40-1000 keV), respectively. The ground-processed light curve is available at http://cgbm.calet.jp/cgbm_trigger/ground/1351040741/ The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at Waseda University.