GRB230614B

This page lists all entries on GRB230614B in GRBweb

Summary Fermi GBM GCN 33958 GCN 33960 GCN 33967

Summary table
Variable Value Source
GRB_name_Fermi GRB230614385
T0 9:15:01 UTC GCN_circulars,Fermi GBM final loc
ra 110.9100° Fermi_GBM
decl -61.8800° Fermi_GBM
pos_error 2.56e+00° Fermi_GBM
T90 14.909 s Fermi_GBM
T90_error 0.602 s Fermi_GBM
T90_start 9:15:01.630 UTC Fermi_GBM
fluence 5.71e-06 erg/cm² Fermi_GBM
fluence_error 2.02e-08 erg/cm² Fermi_GBM
T100 15.539 s
GBM_located True
mjd 60109.38542824074 GCN_circulars,Fermi GBM final loc
Fermi GBM table
GRB_name_Fermi GRB230614385
trigger_name bn230614385
ra 110.9100°
decl -61.8800°
pos_error 2.56e+00°
datum 2023-06-14
t_trigger 9:15:01.627 UTC
T90 14.909 s
T90_error 0.602 s
T90_start 9:15:01.630 UTC
fluence 5.71e-06 erg/cm²
fluence_error 2.02e-08 erg/cm²
flux_1024 1.03e+01 erg/cm²/s
flux_1024_error 3.02e-01 erg/cm²/s
flux_1024_time 1.47e+00 erg/cm²/s
flux_64 1.29e+01 erg/cm²/s
flux_64_error 1.37e+00 erg/cm²/s
GCN 33958 table
GRB_name GRB230614B
GCN_number 33958
Detection_method Fermi GBM final loc
t_trigger 9:15:01 UTC
ra 110.9000°
decl -61.9000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 33958 SUBJECT: GRB 230614B: Fermi GBM Final Real-time Localization DATE: 23/06/14 09:25:31 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 09:15:01 UT on 14 Jun 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230614B (trigger 708426906.627188 / 230614385). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 110.9, Dec = -61.9 (J2000 degrees, equivalent to J2000 07h 23m, -61d 53'), with a statistical uncertainty of 1.0 degrees. The angle from the Fermi LAT boresight is 15.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230614385/quicklook/glg_skymap_all_bn230614385.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230614385/quicklook/glg_healpix_all_bn230614385.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230614385/quicklook/glg_lc_medres34_bn230614385.gif
GCN 33960 table
GRB_name GRB230614B
GCN_number 33960
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 33960 SUBJECT: GRB 230614B: Swift/BAT-GUANO detection outside the coded FOV DATE: 23/06/14 16:17:40 GMT FROM: Jimmy DeLaunay at University of Alabama James DeLaunay (U Alabama), Samuele Ronchini (PSU), Gayathri Raman (PSU), Jamie A. Kennea (PSU), Aaron Tohuvavohu (U Toronto) report: Swift/BAT did not localize GRB 230614B onboard (T0: 2023-06-14T09:15:01 UTC, Fermi/GBM trig 708426906, GCN 33958) 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 with a sqrt(TS) of 16.18 in a 4.096 s analysis time bin. NITRATES results are consistent with a burst coming from outside the FOV, with DeltaLLHOut of 1. The Fermi/GBM localization is consistent with being outside the BAT FOV (GCN 33958). See Section 9.1 and Figures 10 and 17 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 33967 table
GRB_name GRB230614B
GCN_number 33967
Detection_method Fermi GBM Det
t_trigger 9:15:01.630 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 33967 SUBJECT: GRB 230614B: Fermi GBM Observation DATE: 23/06/15 14:01:13 GMT FROM: R. Hamburg at CNRS/IJCLab R. Hamburg (CNRS/IJCLab) and C. Meegan (UAH) report on behalf of the Fermi GBM Team: "At 09:15:01.63 UT on 14 June 2023, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 230614B (trigger 708426906 / 230614385), which was also detected by Swift/BAT-GUANO (DeLaunay et al. 2023, GCN 33960). The Fermi GBM Final Real-time Localization was reported in GCN 33958. The angle from the Fermi LAT boresight at the GBM trigger time is 15 degrees. The GBM light curve consists of two main pulses with a duration (T90) of about 15 s (50-300 keV). The time-averaged spectrum from T0-2.43 s to T0+18.05 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -1.18 +/- 0.05 and the cutoff energy, parameterized as Epeak, is 115 +/- 6 keV. The event fluence (10-1000 keV) in this time interval is (5.94 +/- 0.16)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+1.47 s in the 10-1000 keV band is 10.3 +/- 0.3 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/"