GRB090412A

This page lists all entries on GRB090412A in GRBweb

Summary Fermi GBM GCN 9132

Summary table
Variable Value Source
GRB_name_Fermi GRB090412061
T0 1:28:04.421 UTC Fermi_GBM
ra 1.3000° Fermi_GBM
decl -51.9000° Fermi_GBM
pos_error 8.35e+00° Fermi_GBM
T90 0.896 s Fermi_GBM
T90_error 0.264 s Fermi_GBM
T90_start 1:28:04.421 UTC Fermi_GBM
fluence 1.25e-07 erg/cm² Fermi_GBM
fluence_error 1.36e-08 erg/cm² Fermi_GBM
T100 0.896 s
GBM_located True
mjd 54933.06116228009 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB090412061
trigger_name bn090412061
ra 1.3000°
decl -51.9000°
pos_error 8.35e+00°
datum 2009-04-12
t_trigger 1:28:05.253 UTC
T90 0.896 s
T90_error 0.264 s
T90_start 1:28:04.421 UTC
fluence 1.25e-07 erg/cm²
fluence_error 1.36e-08 erg/cm²
flux_1024 8.67e-01 erg/cm²/s
flux_1024_error 1.96e-01 erg/cm²/s
flux_1024_time -9.60e-01 erg/cm²/s
flux_64 4.12e+00 erg/cm²/s
flux_64_error 1.20e+00 erg/cm²/s
GCN 9132 table
GRB_name GRB090412A
GCN_number 9132
Detection_method Fermi GBM Det
t_trigger 1:28:05.250 UTC
ra 0.3000°
decl -49.8000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 9132 SUBJECT: GRB 090412: Fermi GBM detection DATE: 09/04/16 17:49:35 GMT FROM: Rob Preece at UAH Rob Preece (UAH) reports on behalf of the Fermi GBM Team: "At 01:28:05.25 UT on 12 April 2009, the Fermi Gamma-Ray Burst Monitor triggered and located a weak GRB 090412 (trigger 261192487 / 090412061). The on-ground calculated location, using the GBM trigger data, is RA = 0.3, DEC = -49.8 (J2000 degrees, equivalent to 00 h 01 m, -48 d 48 '), with an uncertainty of 9.6 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 71 degrees. The GBM light curve consists of a weak pulse with a duration (T90) of about 0.5 s (8-1000 keV). Since the source is very weak, it is not possible to perform any spectral analysis."