| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB110123804 |
|
| T0 |
19:17:45.030 UTC |
GCN_circulars,Fermi GBM Det |
| ra |
246.9700° |
Fermi_GBM |
| decl |
28.0300° |
Fermi_GBM |
| pos_error |
2.77e+00° |
Fermi_GBM |
| T90 |
17.856 s |
Fermi_GBM |
| T90_error |
0.81 s |
Fermi_GBM |
| T90_start |
19:17:45.749 UTC |
Fermi_GBM |
| fluence |
1.90e-05 erg/cm² |
Fermi_GBM |
| fluence_error |
5.99e-08 erg/cm² |
Fermi_GBM |
| T100 |
18.575 s |
|
| GBM_located |
True |
|
| mjd |
55584.80399340278 |
GCN_circulars,Fermi GBM Det |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB110123804 |
| trigger_name |
bn110123804 |
| ra |
246.9700° |
| decl |
28.0300° |
| pos_error |
2.77e+00° |
| datum |
2011-01-23 |
| t_trigger |
19:17:45.045 UTC |
| T90 |
17.856 s |
| T90_error |
0.81 s |
| T90_start |
19:17:45.749 UTC |
| fluence |
1.90e-05 erg/cm² |
| fluence_error |
5.99e-08 erg/cm² |
| flux_1024 |
8.46e+00 erg/cm²/s |
| flux_1024_error |
2.62e-01 erg/cm²/s |
| flux_1024_time |
8.70e+00 erg/cm²/s |
| flux_64 |
1.12e+01 erg/cm²/s |
| flux_64_error |
1.21e+00 erg/cm²/s |
| GCN 11600 table |
|---|
| GRB_name |
GRB110123A |
| GCN_number |
11600 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
19:17:45.030 UTC |
| ra |
247.0000° |
| decl |
28.0000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 11600
SUBJECT: GRB 110123A: Fermi GBM detection
DATE: 11/01/25 00:31:13 GMT
FROM: Alexander van der Horst at NASA/MSFC
A.J. van der Horst (USRA) and D. Gruber (MPE) report on behalf
of the Fermi GBM Team:
"At 19:17:45.03 UT on 23 January 2011, the Fermi Gamma-Ray Burst
Monitor triggered and located GRB 110123A (trigger 317503067 /
110123804). The on-ground location, using the GBM trigger data, is
RA = 247.0, Dec = +28.0 (J2000 degrees, equivalent to 17h40m, +28d02'),
with an uncertainty of 1.64 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 58 degrees. This GRB was
bright enough to result in a Fermi spacecraft repointing maneuver.
The GBM light curve consists of one main peak with substructure, with
a duration (T90) of 17.9 +/- 0.8 s (50-300 keV). The time-averaged
spectrum from T0-1.8 s to T0+22.8 s is best fit by a Band function with
Epeak = 280 +/- 15 keV, alpha = -0.64 +/- 0.03, and beta = -1.96 +/- 0.05.
The event fluence (10-1000 keV) in this time interval is
(2.61 +/- 0.03)E-5 erg/cm^2. The 1-sec peak photon flux
measured starting from T0+8.4 s in the 10-1000 keV band is
8.3 +/- 0.2 ph/s/cm^2.
The temporal and spectral analysis results presented above are
preliminary; final results will be published in the GBM GRB Catalog."
|