GRB081107A

This page lists all entries on GRB081107A in GRBweb

Summary Fermi GBM GCN 8494

Summary table
Variable Value Source
GRB_name_Fermi GRB081107321
T0 7:42:00.923 UTC Fermi_GBM
ra 51.0000° Fermi_GBM
decl 17.1000° Fermi_GBM
pos_error 4.51e+00° Fermi_GBM
T90 1.664 s Fermi_GBM
T90_error 0.234 s Fermi_GBM
T90_start 7:42:00.923 UTC Fermi_GBM
fluence 1.22e-06 erg/cm² Fermi_GBM
fluence_error 3.19e-08 erg/cm² Fermi_GBM
T100 1.664 s
GBM_located True
mjd 54777.320844016205 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB081107321
trigger_name bn081107321
ra 51.0000°
decl 17.1000°
pos_error 4.51e+00°
datum 2008-11-07
t_trigger 7:42:01.115 UTC
T90 1.664 s
T90_error 0.234 s
T90_start 7:42:00.923 UTC
fluence 1.22e-06 erg/cm²
fluence_error 3.19e-08 erg/cm²
flux_1024 9.96e+00 erg/cm²/s
flux_1024_error 1.94e-01 erg/cm²/s
flux_1024_time 2.56e-01 erg/cm²/s
flux_64 1.35e+01 erg/cm²/s
flux_64_error 8.45e-01 erg/cm²/s
GCN 8494 table
GRB_name GRB081107A
GCN_number 8494
Detection_method Fermi GBM Det
t_trigger 7:42:01.110 UTC
ra 47.7000°
decl 17.0000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 8494 SUBJECT: GRB 081107: Fermi GBM detection DATE: 08/11/07 15:51:17 GMT FROM: Andreas von Kienlin at MPE A. von Kienlin (MPE) and E. Bissaldi (MPE) report on behalf of the Fermi GBM Team: "At 07:42:01.11 UT on 07 November 2008, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 081107 (trigger 247736522 / 081107321). The on-ground calculated location, using the GBM trigger data, is RA = 47.7, DEC = +17.0 (J2000 degrees, equivalent to 03h 11m, 17d 00'), with an uncertainty of 4.3 degrees (radius, 1-sigma containment, statistical only; there is additionally a systematic error which is currently estimated to be 2 to 3 degrees). The angle from the Fermi LAT boresight is 52 degrees. The GBM light curve shows one major structured peak with a duration (T90) of about 2.2 s (8-1000 keV). The time-averaged spectrum from T0-0.201 s to T0+1.655 s is best fit by a Band function with Epeak = 65 +/- 3 keV, alpha = 0.25 +/- 0.17, and beta = -2.80 +/- 0.15 (chi squared 542 for 481 d.o.f.). The event fluence (8-1000 keV) in this time interval is (1.64 +/- 0.28)E-06 erg/cm^2. The 1-sec photon flux measured starting from T0-0.073 s in the 8-1000 keV band is 11 +/- 3 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."