| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090711850 |
|
| T0 |
20:23:22.151 UTC |
Fermi_GBM |
| ra |
139.6100° |
Fermi_GBM |
| decl |
-64.7400° |
Fermi_GBM |
| pos_error |
2.62e+00° |
Fermi_GBM |
| T90 |
51.969 s |
Fermi_GBM |
| T90_error |
2.56 s |
Fermi_GBM |
| T90_start |
20:23:22.151 UTC |
Fermi_GBM |
| fluence |
5.79e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
1.31e-07 erg/cm² |
Fermi_GBM |
| T100 |
51.969 s |
|
| GBM_located |
True |
|
| mjd |
55023.84956193287 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090711850 |
| trigger_name |
bn090711850 |
| ra |
139.6100° |
| decl |
-64.7400° |
| pos_error |
2.62e+00° |
| datum |
2009-07-11 |
| t_trigger |
20:23:22.919 UTC |
| T90 |
51.969 s |
| T90_error |
2.56 s |
| T90_start |
20:23:22.151 UTC |
| fluence |
5.79e-06 erg/cm² |
| fluence_error |
1.31e-07 erg/cm² |
| flux_1024 |
3.60e+00 erg/cm²/s |
| flux_1024_error |
2.11e-01 erg/cm²/s |
| flux_1024_time |
3.84e-01 erg/cm²/s |
| flux_64 |
5.84e+00 erg/cm²/s |
| flux_64_error |
1.03e+00 erg/cm²/s |
| GCN 9713 table |
|---|
| GRB_name |
GRB090711A |
| GCN_number |
9713 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
20:23:22.920 UTC |
| ra |
139.6000° |
| decl |
-64.7000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9713
SUBJECT: GRB 090711: Fermi GBM detection
DATE: 09/07/27 14:10:00 GMT
FROM: Bill Paciesas at UAH
Colleen A. Wilson-Hodge (NASA/MSFC)
reports on behalf of the Fermi GBM Team:
"At 20:23:22.92 UT on 11 July 2009, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 090711 (trigger 269036604 / 090711850).
The on-ground calculated location, using the GBM trigger
data, is RA = 139.6, DEC = -64.7 (J2000 degrees,
equivalent to 09 h 18 m, -64 d 42 '), with an uncertainty
of 1 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 13 degrees.
The GBM light curve consists of multiple peaks
with a duration of at least 100 s (8-1000 keV). The GBM detectors
were turned off for SAA entry about 83 seconds after the
trigger. The time-averaged spectrum from T0-20.992 s to T0+82.433 s is
adequately fit by a power law function with an exponential
high energy cutoff. The power law index is 1.3 +/- 0.1 and
the cutoff energy, parameterized as Epeak, is 210 +/- 70 keV
The event fluence (8-1000 keV) in this time interval is
(1.17 +/- 0.16 )E-05 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+1.536 s in the 8-1000 keV band
is 4.2 +/- 0.6 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|