| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090320418 |
|
| T0 |
10:01:44.347 UTC |
Fermi_GBM |
| ra |
238.0000° |
Fermi_GBM |
| decl |
-46.5000° |
Fermi_GBM |
| pos_error |
9.77e+00° |
Fermi_GBM |
| T90 |
7.936 s |
Fermi_GBM |
| T90_error |
1.296 s |
Fermi_GBM |
| T90_start |
10:01:44.347 UTC |
Fermi_GBM |
| fluence |
1.00e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
3.85e-08 erg/cm² |
Fermi_GBM |
| T100 |
7.936 s |
|
| GBM_located |
True |
|
| mjd |
54910.41787438657 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090320418 |
| trigger_name |
bn090320418 |
| ra |
238.0000° |
| decl |
-46.5000° |
| pos_error |
9.77e+00° |
| datum |
2009-03-20 |
| t_trigger |
10:01:46.011 UTC |
| T90 |
7.936 s |
| T90_error |
1.296 s |
| T90_start |
10:01:44.347 UTC |
| fluence |
1.00e-06 erg/cm² |
| fluence_error |
3.85e-08 erg/cm² |
| flux_1024 |
1.60e+00 erg/cm²/s |
| flux_1024_error |
1.43e-01 erg/cm²/s |
| flux_1024_time |
-1.09e+00 erg/cm²/s |
| flux_64 |
4.17e+00 erg/cm²/s |
| flux_64_error |
7.97e-01 erg/cm²/s |
| GCN 9018 table |
|---|
| GRB_name |
GRB090320A |
| GCN_number |
9018 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
10:01:46 UTC |
| ra |
242.4000° |
| decl |
-51.9000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9018
SUBJECT: GRB 090320A: Fermi GBM detection
DATE: 09/03/23 14:53:00 GMT
FROM: Arne Rau at MPE
Arne Rau (MPE) reports on behalf of the Fermi GBM Team:
"At 10:01:46 UT on 20 March 2009, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 090320A (trigger 259236108 / 090320.418).
The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 242.4, Dec = -51.9 (J2000 degrees, equivalent to
J2000 16h 10m, +/-51d 54'), with a statistical uncertainty of 10.8 degrees
(radius, 1-sigma containment, statistical only; there is additionally
a systematic error which is currently estimated to be 2 to 3 degrees).
The GBM light curve shows a single peak with a duration (T90)
of about 10 s (8-1000 keV). The reliability for T90 is low due to strong
background fluctuations.
The angle from the Fermi LAT boresight is 60 degrees.
Since the source is weak, the time-averaged spectrum is poorly
constrained."
|