GRBweb by P. Coppin

This page lists all entries on GRB240624B in GRBweb

Summary Fermi GBM GCN 36749 GCN 36759 GCN 36764 GCN 37067

Summary table
Variable	Value	Source
GRB_name_Fermi	GRB240624805
T0	19:19:45 UTC	GCN_circulars,Fermi GBM final loc
ra	237.4400°	Fermi_GBM
decl	-7.3100°	Fermi_GBM
pos_error	4.29e+00°	Fermi_GBM
T90	92.162 s	Fermi_GBM
T90_error	0.923 s	Fermi_GBM
T90_start	19:19:45.007 UTC	Fermi_GBM
fluence	3.77e-06 erg/cm²	Fermi_GBM
fluence_error	2.99e-08 erg/cm²	Fermi_GBM
T100	92.169 s
GBM_located	True
mjd	60485.80538194445	GCN_circulars,Fermi GBM final loc

Fermi GBM table
GRB_name_Fermi	GRB240624805
trigger_name	bn240624805
ra	237.4400°
decl	-7.3100°
pos_error	4.29e+00°
datum	2024-06-24
t_trigger	19:19:45.263 UTC
T90	92.162 s
T90_error	0.923 s
T90_start	19:19:45.007 UTC
fluence	3.77e-06 erg/cm²
fluence_error	2.99e-08 erg/cm²
flux_1024	6.14e+00 erg/cm²/s
flux_1024_error	2.51e-01 erg/cm²/s
flux_1024_time	7.68e-01 erg/cm²/s
flux_64	7.40e+00 erg/cm²/s
flux_64_error	1.01e+00 erg/cm²/s

GCN 36749 table
GRB_name	GRB240624B
GCN_number	36749
Detection_method	Fermi GBM final loc
t_trigger	19:19:45 UTC
ra	237.4000°
decl	-7.3000°
Circular_text	TITLE: GCN CIRCULAR NUMBER: 36749 SUBJECT: GRB 240624B: Fermi GBM Final Real-time Localization DATE: 24/06/25 02:27:05 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 19:19:45 UT on 24 Jun 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240624B (trigger 740949590.263268 / 240624805). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 237.4, Dec = -7.3 (J2000 degrees, equivalent to J2000 15h 49m, -7d 17'), with a statistical uncertainty of 4.3 degrees. The angle from the Fermi LAT boresight is 58.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240624805/quicklook/glg_skymap_all_bn240624805.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240624805/quicklook/glg_healpix_all_bn240624805.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240624805/quicklook/glg_lc_medres34_bn240624805.gif

GCN 36759 table
GRB_name	GRB240624B
GCN_number	36759
Detection_method	Fermi GBM Det
t_trigger	19:19:46 UTC
Circular_text	TITLE: GCN CIRCULAR NUMBER: 36759 SUBJECT: GRB 240624B: GRBAlpha detection DATE: 24/06/25 15:53:18 GMT FROM: Marianna Dafčíková at Masaryk University <500025@mail.muni.cz> M. Dafcikova, J. Ripa, M. Kolar (Masaryk U.), A. Pal (Konkoly Observatory), N. Werner (Masaryk U.), M. Ohno, H. Takahashi (Hiroshima U.), L. Meszaros, B. Csak (Konkoly Observatory), N. Husarikova, F. Munz , M. Topinka, M. Duriskova, L. Szakszonova, J.-P. Breuer, 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 240624B (Fermi/GBM detection: GCN 36749) was observed by the GRBAlpha 1U CubeSat (Pal et al. 2023, A&A, 677, 40; https://ui.adsabs.harvard.edu/abs/2023A%26A...677A..40P/abstract). The detection was confirmed at the peak time 2024-06-24 19:19:46.0 UTC. The T90 duration measured by GRBAlpha is 8.5 s and the overall significance during T90 reaches 7.8 sigma. The light curve obtained by GRBAlpha is available here: https://grbalpha.konkoly.hu/static/share/GRB240624B_GCN.pdf All GRBAlpha detections are listed at: https://monoceros.physics.muni.cz/hea/GRBAlpha/ GRBAlpha, launched on 2021 March 22, is a demonstration mission for a future CubeSat constellation (Werner et al. Proc. SPIE 2018). The detector of GRBAlpha consists of a 75 x 75 x 5 mm3 CsI 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, the upgrade of the on-board data acquisition software stack is in progress. 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 36764 table
GRB_name	GRB240624B
GCN_number	36764
Detection_method	CALET
Circular_text	TITLE: GCN CIRCULAR NUMBER: 36764 SUBJECT: GRB 240624B: CALET Gamma-Ray Burst Monitor detection DATE: 24/06/26 03:29:21 GMT FROM: Yuta Kawakubo at Aoyama Gakuin University Y. Akaike (Waseda U), A. Yoshida, T. Sakamoto, S. Sugita, Y. Kawakubo (AGU), K. Yamaoka (Nagoya U), S. Nakahira (JAXA), Y. Asaoka (ICRR), S. Torii, K. Kobayashi (Waseda U), Y. Shimizu, T. Tamura (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 240624B (Fermi GBM Final Real-time Localization: Fermi GBM team, GCN Circ. 36749; GRBAlpha detection: Dafcikova et al., GCN Circ. 36759) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 19:19:42.90 UTC on 24 June 2024 (https://cgbm.calet.jp/cgbm_trigger/flight/1403291510/). The burst signal was seen by all CGBM detectors. The burst light curve shows a main pulse around the trigger time, with weak pulses starting around T + 50 sec. The burst emission starts at T+2.4 sec, peaks at T+3.4 sec, and ends at T+100.4 sec. The T90 and T50 durations measured by the SGM data are 93.6 +/- 1.8 sec and 69.4 +/- 11.7 sec (40-1000 keV), respectively. The ground-processed light curve is available at https://cgbm.calet.jp/cgbm_trigger/ground/1403291510/index.html The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at Waseda University.

GCN 37067 table
GRB_name	GRB240624B
GCN_number	37067
Detection_method	Fermi GBM Det
Circular_text	TITLE: GCN CIRCULAR NUMBER: 37067 SUBJECT: GRB 240624B: VZLUSAT-2 detection DATE: 24/08/06 12:19:22 GMT FROM: Andras Pal at Konkoly Observatory A. Pal (Konkoly Observatory), M. Dafcikova, J. Ripa, N. Werner (Masaryk U.), M. Ohno (Hiroshima U.), L. Meszaros, B. Csak (Konkoly Observatory), H. Takahashi (Hiroshima U.), F. Munz , M. Topinka, F. Hroch, N. Husarikova, J.-P. Breuer (Masaryk U.), J. Hudec, J. Kapus, M. Frajt, M. Rezenov (Spacemanic s.r.o), R. Laszlo (Needronix), G. Galgoczi (Wigner Research Center/Eotvos U.), N. Uchida (ISAS/JAXA), T. Enoto (Kyoto U.), Zs. Frei (Eotvos U.), Y. Fukazawa, K. Hirose, H. Matake (Hiroshima U.), S. Hisadomi (Nagoya U.), Y. Ichinohe (Rikkyo U.), L. L. Kiss (Konkoly Observatory), T. Mizuno (Hiroshima U.), K. Nakazawa (Nagoya U.), H. Odaka (Univ of Tokyo), K. Torigoe (Hiroshima U.), P. Svoboda, V. Daniel, J. Dudas, M. Junas, J. Gromes (VZLU), I. Vertat (FEL ZCU) -- the VZLUSAT-2/GRB payload collaboration. The long-duration GRB 240624B (Fermi/GBM detection: GCN 36749; GRBAlpha detection: GCN 36759; CALET/CGBM detection: GCN 36764; Konus/Wind detection trigger at 2024-06-24 19:19:51.634 UTC) was detected by the GRB detectors on board of the VZLUSAT-2 3U CubeSat (https://www.vzlusat2.cz/en/). The data acquisition was performed by the GRB detector units no. 0 and no. 1. The detection was confirmed at the peak time 2024-06-24 19:19:46 (19:19:44) UTC. The T90 duration is 6 s (5 s) and the significance during T90 reaches 5.3 sigma (12 sigma) for detector unit no. 0 (no. 1). The light curve obtained by VZLUSAT-2 is available here: https://vzlusat2.konkoly.hu/static/share/GRB240624B_GCN_VZLUSAT2.pdf All VZLUSAT-2 detections are listed at: https://monoceros.physics.muni.cz/hea/VZLUSAT-2/ The GRB detectors on VZLUSAT-2 are a demonstration payload for a future CubeSat constellation (Werner et al. Proc. SPIE 2018). Two GRB modules of VZLUSAT-2 are placed in a perpendicular manner and each consists of a 75 x 75 x 5 mm3 CsI scintillator read out by a SiPM array, covering the energy range from ~30 keV to ~1000 keV. VZLUSAT-2 was launched on 2022 January 13 from Cape Canaveral.