| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090319622 |
|
| T0 |
14:55:22.678 UTC |
Fermi_GBM |
| ra |
283.3000° |
Fermi_GBM |
| decl |
-8.9000° |
Fermi_GBM |
| pos_error |
3.61e+00° |
Fermi_GBM |
| T90 |
54.785 s |
Fermi_GBM |
| T90_error |
2.202 s |
Fermi_GBM |
| T90_start |
14:55:22.678 UTC |
Fermi_GBM |
| fluence |
6.03e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
6.50e-08 erg/cm² |
Fermi_GBM |
| T100 |
54.785 s |
|
| GBM_located |
True |
|
| mjd |
54909.62179025463 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090319622 |
| trigger_name |
bn090319622 |
| ra |
283.3000° |
| decl |
-8.9000° |
| pos_error |
3.61e+00° |
| datum |
2009-03-19 |
| t_trigger |
14:55:35.222 UTC |
| T90 |
54.785 s |
| T90_error |
2.202 s |
| T90_start |
14:55:22.678 UTC |
| fluence |
6.03e-06 erg/cm² |
| fluence_error |
6.50e-08 erg/cm² |
| flux_1024 |
3.57e+00 erg/cm²/s |
| flux_1024_error |
2.81e-01 erg/cm²/s |
| flux_1024_time |
3.23e+01 erg/cm²/s |
| flux_64 |
5.81e+00 erg/cm²/s |
| flux_64_error |
1.37e+00 erg/cm²/s |
| GCN 9019 table |
|---|
| GRB_name |
GRB090319A |
| GCN_number |
9019 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
14:55:35.220 UTC |
| ra |
274.6000° |
| decl |
-11.4000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9019
SUBJECT: GRB 090319: Fermi GBM detection
DATE: 09/03/23 15:35:25 GMT
FROM: Vandiver Chaplin at UAH/Fermi-GBM
V.Chaplin (UAH) reports on behalf of the Fermi GBM Team:
"At 14:55:35.22 UT on 19 MARCH 2009, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 090319 (trigger 259167337 / 090319622).
The on-ground calculated location, using the GBM trigger
data, is RA = 274.6, DEC = -11.4 (J2000 degrees,
equivalent to 18h 18m, -11d 24'), with an uncertainty
of 3.0 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 27 degrees.
The GBM light curve consists of two ~6 s peaks at
about T0+13 and T0+30 s on top of a smooth component,
with a duration (T90) of about 67.7 s (8-1000 keV).
The time-averaged spectrum from T0-6.144 to T0+37.889 s is
best fit by a power law function with an exponential
high energy cutoff. The power law index is 0.90 +/- 0.10 and
the cutoff energy, parameterized as Epeak, is 187.3 +/- 20.4 keV
(chi squared 463.25 for 467 d.o.f.).
The event fluence (8-1000 keV) in this time interval is
(7.47 +/- .53)E-06 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+13.312 s in the 8-1000 keV band
is 3.85 +/- 0.12 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog." |