| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090219074 |
|
| T0 |
1:46:18.085 UTC |
Fermi_GBM |
| ra |
26.5000° |
Fermi_GBM |
| decl |
59.2000° |
Fermi_GBM |
| pos_error |
1.31e+01° |
Fermi_GBM |
| T90 |
0.448 s |
Fermi_GBM |
| T90_error |
0.272 s |
Fermi_GBM |
| T90_start |
1:46:18.085 UTC |
Fermi_GBM |
| fluence |
2.12e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
5.42e-08 erg/cm² |
Fermi_GBM |
| T100 |
0.448 s |
|
| GBM_located |
True |
|
| mjd |
54881.07382042824 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090219074 |
| trigger_name |
bn090219074 |
| ra |
26.5000° |
| decl |
59.2000° |
| pos_error |
1.31e+01° |
| datum |
2009-02-19 |
| t_trigger |
1:46:18.149 UTC |
| T90 |
0.448 s |
| T90_error |
0.272 s |
| T90_start |
1:46:18.085 UTC |
| fluence |
2.12e-07 erg/cm² |
| fluence_error |
5.42e-08 erg/cm² |
| flux_1024 |
3.18e+00 erg/cm²/s |
| flux_1024_error |
5.96e-01 erg/cm²/s |
| flux_1024_time |
-6.40e-02 erg/cm²/s |
| flux_64 |
1.17e+01 erg/cm²/s |
| flux_64_error |
3.09e+00 erg/cm²/s |
| GCN 8911 table |
|---|
| GRB_name |
GRB090219A |
| GCN_number |
8911 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
1:46:18.150 UTC |
| ra |
16.4000° |
| decl |
60.2000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 8911
SUBJECT: GRB 090219: Fermi GBM detection
DATE: 09/02/20 17:22:18 GMT
FROM: Narayana Bhat at U Alabama/Huntsville/GBM
P. N. Bhat (UA Huntsville)
report on behalf of the Fermi GBM Team:
"At 01:46:18.15 UT on 19th February, 2009, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 090219 (trigger 256700780 / 090219074).
The on-ground calculated location, using the GBM trigger
data, is RA = 16.4 d, DEC = +60.2 d (J2000 degrees,
equivalent to 1 h 5.6 m, 60 d 12'), with an uncertainty
of 7 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 137 degrees.
The GBM light curve consists of 2 narrow closely spaced
pulses with a duration (T90) of about 0.5 s (8-1000 keV).
The time-averaged spectrum from T0-0.18 s to T0+0.46 s is
adequately fit by a simple power law function with index -1.43 +/- 0.05
(chi squared 385 for 366 d.o.f.).
The event fluence (8-1000 keV) in this time interval is
(8.0 +/- 0.4)E-07 erg/cm^2. The X-sec peak photon flux measured
starting from T0-0.18 s in the 8-1000 keV band
is 7.7 +/- 0.4 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|