| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090519462 |
|
| T0 |
11:05:08.601 UTC |
Fermi_GBM |
| ra |
105.9000° |
Fermi_GBM |
| decl |
-56.7000° |
Fermi_GBM |
| pos_error |
4.77e+00° |
Fermi_GBM |
| T90 |
91.329 s |
Fermi_GBM |
| T90_error |
3.692 s |
Fermi_GBM |
| T90_start |
11:05:08.601 UTC |
Fermi_GBM |
| fluence |
4.38e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
5.13e-08 erg/cm² |
Fermi_GBM |
| T100 |
91.329 s |
|
| GBM_located |
True |
|
| mjd |
54970.46190510417 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090519462 |
| trigger_name |
bn090519462 |
| ra |
105.9000° |
| decl |
-56.7000° |
| pos_error |
4.77e+00° |
| datum |
2009-05-19 |
| t_trigger |
11:05:27.545 UTC |
| T90 |
91.329 s |
| T90_error |
3.692 s |
| T90_start |
11:05:08.601 UTC |
| fluence |
4.38e-06 erg/cm² |
| fluence_error |
5.13e-08 erg/cm² |
| flux_1024 |
2.57e+00 erg/cm²/s |
| flux_1024_error |
1.80e-01 erg/cm²/s |
| flux_1024_time |
4.00e-03 erg/cm²/s |
| flux_64 |
6.53e+00 erg/cm²/s |
| flux_64_error |
1.10e+00 erg/cm²/s |
| GCN 9412 table |
|---|
| GRB_name |
GRB090519B |
| GCN_number |
9412 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
11:05:27.540 UTC |
| ra |
105.9000° |
| decl |
-56.7000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9412
SUBJECT: GRB 090519B: Fermi GBM detection
DATE: 09/05/20 15:32:50 GMT
FROM: Andreas von Kienlin at MPE
A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team:
"At 11:05:27.54 UT on 19 May 2009, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 090519B (trigger 264423929 / 090519462).
The on-ground calculated location, using the GBM trigger
data, is RA = 105.9, DEC = -56.7 (J2000 degrees,
equivalent to 07h 04m, 56d 42'), with an uncertainty
of 3.9 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 18 degrees.
The GBM light curve shows a single peak lasting
about 4 seconds superimposed on a lower-level continuum.
The burst duration (T90) is about 87 s (8-1000 keV).
The time-averaged spectrum from T0-2.432 s to T0+1.152 s is
well fit by a simple power law function with index -1.63 +/- 0.05
(chi squared 822 for 720 d.o.f.).
The event fluence (8-1000 keV) in this time interval is
(1.40 +/- 0.01)E-06 erg/cm^2. The 1-sec peak photon flux measured
starting from T0-0.640 s in the 8-1000 keV band
is 5.02 +/- 0.14 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|