GRB090610C

This page lists all entries on GRB090610C in GRBweb

Summary Fermi GBM GCN 9509

Summary table
Variable Value Source
GRB_name_Fermi GRB090610883
T0 21:12:04.918 UTC Fermi_GBM
ra 70.3700° Fermi_GBM
decl 30.3000° Fermi_GBM
pos_error 7.24e+00° Fermi_GBM
T90 7.424 s Fermi_GBM
T90_error 1.639 s Fermi_GBM
T90_start 21:12:04.918 UTC Fermi_GBM
fluence 7.64e-07 erg/cm² Fermi_GBM
fluence_error 2.24e-08 erg/cm² Fermi_GBM
T100 7.424 s
GBM_located True
mjd 54992.88339025463 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB090610883
trigger_name bn090610883
ra 70.3700°
decl 30.3000°
pos_error 7.24e+00°
datum 2009-06-10
t_trigger 21:12:07.734 UTC
T90 7.424 s
T90_error 1.639 s
T90_start 21:12:04.918 UTC
fluence 7.64e-07 erg/cm²
fluence_error 2.24e-08 erg/cm²
flux_1024 2.08e+00 erg/cm²/s
flux_1024_error 2.73e-01 erg/cm²/s
flux_1024_time -5.12e-01 erg/cm²/s
flux_64 4.34e+00 erg/cm²/s
flux_64_error 1.32e+00 erg/cm²/s
GCN 9509 table
GRB_name GRB090610C
GCN_number 9509
Detection_method Fermi GBM Det
t_trigger 21:12:07.730 UTC
ra 70.4000°
decl 30.3000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 9509 SUBJECT: GRB 090610C: Fermi GBM detection DATE: 09/06/12 16:29:53 GMT FROM: Adam Goldstein at Fermi-GBM/UAH A. Goldstein (UAH) reports on behalf of the Fermi GBM Team: "At 21:12:07.73 UT on 10 June 2009, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 090610C (trigger 266361129 / 090610883). The on-ground calculated location, using the GBM trigger data, is RA = 70.4, DEC = +30.3 (J2000 degrees, equivalent to 04h 42m, 30d 18'), with an uncertainty of 8.2 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 104 degrees. The GBM light curve consists of a single pulse with a duration (T90) of about 18.1 s (8-1000 keV). The time-averaged spectrum from T0-4.1 s to T0+8.2 s is best fit by a simple power law function with index -1.62 +/- 0.08 (chi squared 341.6 for 362 d.o.f.). The event fluence (8-1000 keV) in this time interval is (8.54 +/- 0.38)E-07 erg/cm^2. The 1-sec peak photon flux measured starting from T0-0.51 s in the 8-1000 keV band is 1.12 +/- 0.11 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."