GRB240317B

This page lists all entries on GRB240317B in GRBweb

Summary Fermi GBM IPN GCN 35941 GCN 35943 GCN 35948 GCN 35955 GCN 35965

Summary table
Variable Value Source
GRB_name_Fermi GRB240317454
T0 10:54:21.201 UTC Fermi_GBM
ra 272.1792° IPN
decl 39.1833° IPN
pos_error 1.00e+00° IPN
T90 35.072 s Fermi_GBM
T90_error 2.996 s Fermi_GBM
T90_start 10:54:21.201 UTC Fermi_GBM
fluence 2.44e-06 erg/cm² Fermi_GBM
fluence_error 6.25e-08 erg/cm² Fermi_GBM
T100 35.072 s
GBM_located False
mjd 60386.45441204861 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB240317454
trigger_name bn240317454
ra 274.5300°
decl 49.5600°
pos_error 5.66e+00°
datum 2024-03-17
t_trigger 10:54:24.017 UTC
T90 35.072 s
T90_error 2.996 s
T90_start 10:54:21.201 UTC
fluence 2.44e-06 erg/cm²
fluence_error 6.25e-08 erg/cm²
flux_1024 2.31e+00 erg/cm²/s
flux_1024_error 4.08e-01 erg/cm²/s
flux_1024_time 3.01e+00 erg/cm²/s
flux_64 7.03e+00 erg/cm²/s
flux_64_error 2.50e+00 erg/cm²/s
IPN table
GRB_name GRB240317B
ra 272.1792°
decl 39.1833°
pos_error 1.00e+00°
GCN 35941 table
GRB_name GRB240317B
GCN_number 35941
Detection_method Fermi GBM final loc
t_trigger 10:54:24 UTC
ra 274.5000°
decl 49.6000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 35941 SUBJECT: GRB 240317B: Fermi GBM Final Real-time Localization DATE: 24/03/17 11:04:59 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 10:54:24 UT on 17 Mar 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240317B (trigger 732365669.017448 / 240317454). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 274.5, Dec = 49.6 (J2000 degrees, equivalent to J2000 18h 18m, 49d 36'), with a statistical uncertainty of 8.8 degrees. The angle from the Fermi LAT boresight is 96.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240317454/quicklook/glg_skymap_all_bn240317454.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/bn240317454/quicklook/glg_healpix_all_bn240317454.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240317454/quicklook/glg_lc_medres34_bn240317454.gif
GCN 35943 table
GRB_name GRB240317B
GCN_number 35943
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 35943 SUBJECT: Fermi GRB 240317B: Global MASTER-Net observations report DATE: 24/03/17 13:31:09 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko, G.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gress, N.M. Budnev, O.Ershova (Irkutsk State University, API), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich (Blagoveschensk Educational State University) MASTER-Amur robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB 240317B ( Fermi GBM team, GCN 35941) errorbox 465 sec after notice time and 497 sec after trigger time at 2024-03-17 11:02:41 UT, with upper limit up to 17.7 mag. Observations started at twilight. The observations began at zenith distance = 69 deg. The sun altitude is -14.2 deg. MASTER-Tunka robotic telescope located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB 240317B errorbox 5026 sec after notice time and 5058 sec after trigger time at 2024-03-17 12:18:42 UT, with upper limit up to 14.5 mag. Observations started at twilight. The observations began at zenith distance = 78 deg. The sun altitude is -10.9 deg. The galactic latitude b = 25 deg., longitude l = 78 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2400679 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 527 | 2024-03-17 11:02:41 | MASTER-Amur | (18h 08m 33.84s , +60d 12m 29.5s) | C | 60 | 17.0 | 607 | 2024-03-17 11:04:01 | MASTER-Amur | (18h 24m 41.82s , +60d 10m 12.2s) | C | 60 | 17.1 | 5088 | 2024-03-17 12:18:42 | MASTER-Tunka | (18h 40m 58.76s , +51d 03m 11.4s) | C | 60 | 13.3 | 5247 | 2024-03-17 12:21:20 | MASTER-Tunka | (18h 38m 56.08s , +52d 56m 32.7s) | C | 60 | 13.1 | 5326 | 2024-03-17 12:22:39 | MASTER-Tunka | (18h 11m 57.74s , +54d 49m 55.0s) | C | 60 | 13.6 | 5405 | 2024-03-17 12:23:59 | MASTER-Tunka | (18h 25m 29.46s , +54d 49m 03.5s) | C | 60 | 13.1 | 5484 | 2024-03-17 12:25:18 | MASTER-Tunka | (18h 44m 12.61s , +49d 08m 38.9s) | C | 60 | 12.8 | 5723 | 2024-03-17 12:29:16 | MASTER-Tunka | (18h 10m 46.74s , +56d 42m 59.1s) | C | 60 | 13.9 | 5809 | 2024-03-17 12:30:42 | MASTER-Tunka | (18h 25m 14.42s , +56d 44m 15.4s) | C | 60 | 13.9 | 5888 | 2024-03-17 12:32:02 | MASTER-Tunka | (18h 37m 57.53s , +54d 50m 37.3s) | C | 60 | 13.9 | 5967 | 2024-03-17 12:33:21 | MASTER-Tunka | (18h 51m 38.66s , +54d 48m 51.4s) | C | 60 | 13.8 | 6093 | 2024-03-17 12:35:27 | MASTER-Tunka | (17h 32m 14.76s , +47d 49m 22.3s) | C | 60 | 12.0 | 6173 | 2024-03-17 12:36:46 | MASTER-Tunka | (17h 45m 53.62s , +51d 38m 34.6s) | C | 60 | 13.6 | 6252 | 2024-03-17 12:38:05 | MASTER-Tunka | (17h 58m 51.51s , +51d 37m 38.5s) | C | 60 | 13.5 | 6331 | 2024-03-17 12:39:25 | MASTER-Tunka | (18h 08m 20.83s , +53d 30m 31.9s) | C | 60 | 13.5 | 6411 | 2024-03-17 12:40:44 | MASTER-Tunka | (18h 22m 07.75s , +53d 30m 45.1s) | C | 60 | 13.3 | 6490 | 2024-03-17 12:42:03 | MASTER-Tunka | (17h 42m 29.98s , +53d 33m 01.3s) | C | 60 | 13.7 | 6569 | 2024-03-17 12:43:22 | MASTER-Tunka | (17h 56m 03.03s , +53d 31m 31.5s) | C | 60 | 14.2 | 6648 | 2024-03-17 12:44:42 | MASTER-Tunka | (18h 07m 12.93s , +55d 25m 21.8s) | C | 60 | 13.5 | 6727 | 2024-03-17 12:46:01 | MASTER-Tunka | (18h 21m 30.03s , +55d 25m 53.4s) | C | 60 | 13.9 | 6807 | 2024-03-17 12:47:20 | MASTER-Tunka | (18h 10m 40.47s , +51d 38m 42.8s) | C | 60 | 12.5 | 6886 | 2024-03-17 12:48:40 | MASTER-Tunka | (18h 34m 27.86s , +53d 30m 56.9s) | C | 60 | 13.1 | 7045 | 2024-03-17 12:51:19 | MASTER-Tunka | (18h 23m 52.08s , +51d 35m 59.6s) | C | 60 | 12.9 | 7125 | 2024-03-17 12:52:38 | MASTER-Tunka | (17h 45m 52.05s , +51d 36m 29.1s) | C | 60 | 13.2 | 7283 | 2024-03-17 12:55:16 | MASTER-Tunka | (18h 08m 31.13s , +53d 32m 30.1s) | C | 60 | 12.0 | 7362 | 2024-03-17 12:56:36 | MASTER-Tunka | (18h 22m 06.54s , +53d 30m 53.0s) | C | 60 | 12.2 | 7442 | 2024-03-17 12:57:55 | MASTER-Tunka | (17h 42m 28.24s , +53d 30m 30.9s) | C | 60 | 13.5 | 7521 | 2024-03-17 12:59:15 | MASTER-Tunka | (17h 56m 14.41s , +53d 31m 12.9s) | C | 60 | 12.3 | 7600 | 2024-03-17 13:00:34 | MASTER-Tunka | (18h 07m 15.33s , +55d 25m 54.0s) | C | 60 | 13.1 | 7680 | 2024-03-17 13:01:53 | MASTER-Tunka | (18h 21m 35.22s , +55d 24m 10.8s) | C | 60 | 13.4 | 7838 | 2024-03-17 13:04:32 | MASTER-Tunka | (18h 34m 26.84s , +53d 30m 37.4s) | C | 60 | 12.8 | 7997 | 2024-03-17 13:07:11 | MASTER-Tunka | (18h 01m 01.79s , +45d 53m 48.3s) | C | 60 | 13.1 | 8116 | 2024-03-17 13:09:09 | MASTER-Amur | (18h 08m 32.38s , +60d 15m 05.1s) | C | 60 | 17.6 | 8168 | 2024-03-17 13:10:01 | MASTER-Tunka | (17h 38m 59.01s , +45d 54m 53.6s) | C | 60 | 12.7 | 8195 | 2024-03-17 13:10:29 | MASTER-Amur | (18h 24m 43.45s , +60d 15m 58.2s) | C | 60 | 17.7 | 8334 | 2024-03-17 13:12:48 | MASTER-Tunka | (17h 26m 26.99s , +49d 44m 57.1s) | C | 60 | 13.3 | 8414 | 2024-03-17 13:14:07 | MASTER-Tunka | (17h 39m 06.53s , +49d 43m 35.7s) | C | 60 | 13.6 | 8493 | 2024-03-17 13:15:26 | MASTER-Tunka | (18h 23m 15.91s , +45d 53m 39.0s) | C | 60 | 13.4 | 8572 | 2024-03-17 13:16:46 | MASTER-Tunka | (17h 40m 10.09s , +55d 26m 08.0s) | C | 60 | 13.2 | 8651 | 2024-03-17 13:18:05 | MASTER-Tunka | (17h 54m 24.83s , +55d 25m 12.8s) | C | 60 | 13.1 | 8730 | 2024-03-17 13:19:24 | MASTER-Tunka | (17h 46m 22.65s , +44d 01m 00.9s) | C | 60 | 14.5 | 8889 | 2024-03-17 13:22:03 | MASTER-Tunka | (17h 21m 14.66s , +51d 37m 48.6s) | C | 60 | 14.5 | 8968 | 2024-03-17 13:23:22 | MASTER-Tunka | (17h 34m 22.92s , +51d 38m 11.6s) | C | 60 | 13.6 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
GCN 35948 table
GRB_name GRB240317B
GCN_number 35948
Detection_method Swift Other
ra 272.1800°
decl 39.1820°
Circular_text TITLE: GCN CIRCULAR NUMBER: 35948 SUBJECT: GRB 240317B: Swift/BAT-GUANO arcminute localization of a burst DATE: 24/03/18 00:22:44 GMT FROM: Aaron Tohuvavohu at University of Toronto James DeLaunay (PSU), Aaron Tohuvavohu (U Toronto), Samuele Ronchini (PSU), Gayathri Raman (PSU), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report: Swift/BAT did not localize GRB 240317B onboard (T0: 2024-03-17T10:54:24.00 UTC, Fermi/GBM trigger 732365669). The Fermi 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 2022, ApJ, 941, 169), detects the burst in a 16.384 s analysis time bin with a sqrt(TS) of 49.27. An arcminute localization is found with DeltaLLHOut of 385 and a DeltaLLHPeak of 501. See Section 9.1 and Figures 10 and 17 in the NITRATES paper for brief descriptions and interpretations of sqrt(TS), DeltaLLHPeak, and DeltaLLHOut. The BAT position is RA, Dec = 272.18, +39.182 deg which is RA(J2000) = 18h 08m 43.2s Dec(J2000) = +39d 10′ 55.2″ with an estimated uncertainty of 15 arcmin radius, due to star tracker loss-of-lock. Follow-up observations from other instruments are requested. XRT and UVOT will not follow-up until March 18 due to planned observatory downtime. 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 35955 table
GRB_name GRB240317B
GCN_number 35955
Detection_method Fermi GBM Det
t_trigger 10:54:24.020 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 35955 SUBJECT: GRB 240317B: Fermi GBM Observation DATE: 24/03/18 16:26:15 GMT FROM: rachel.hamburg@ijclab.in2p3.fr R. Hamburg (CNRS/IN2P3/IJCLab) and C. Meegan (UAH) report on behalf of the Fermi Gamma-ray Burst Monitor Team: "At 10:54:24.02 UT on 17 March 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240317B (trigger 732365669/240317454), which was also detected by Swift/BAT-GUANO (DeLaunay et al. 2024, GCN 35948). The Fermi GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 89 degrees. The GBM light curve shows one main emission episode with a duration (T90) of about 35 s (50-300 keV). The time-averaged spectrum from T0-6.1 to T0+32.8 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -0.6 +/- 0.3 and the cutoff energy, parameterized as Epeak, is 76 +/- 9 keV. The event fluence (10-1000 keV) in this time interval is (1.9 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+3.0 s in the 10-1000 keV band is 2.3 +/- 0.4 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 35965 table
GRB_name GRB240317B
GCN_number 35965
Detection_method Swift Other
ra 271.9500°
decl 38.4000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 35965 SUBJECT: GRB 240317B: Swift/BAT-GUANO Angular Error Correction DATE: 24/03/19 19:07:34 GMT FROM: Jimmy DeLaunay at Penn State James DeLaunay (PSU), Aaron Tohuvavohu (U Toronto), Samuele Ronchini (PSU), Gayathri Raman (PSU), Jamie A. Kennea (PSU), Tyler Parsotan (NASA GSFC) report: During the detection of GRB 240317B, Swift was in safe point mode and had an unstable pointing. Due to this, the angular error is larger than previously reported (GCN 35948). We have performed an imaging analysis at the time of the GRB and found Cyg X-1 at an angular offset of ~1 deg. We also attempt to approximately correct the best fit position. The updated BAT position and error is, RA, Dec = 271.95, +38.4 deg which is RA(J2000) = 18h 07m 48.0s Dec(J2000) = +38d 24′ 00.0″ with an estimated uncertainty of ~1 deg radius