| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090511684 |
|
| T0 |
16:25:14.900 UTC |
Fermi_GBM |
| ra |
161.9000° |
Fermi_GBM |
| decl |
51.3000° |
Fermi_GBM |
| pos_error |
5.15e+00° |
Fermi_GBM |
| T90 |
7.616 s |
Fermi_GBM |
| T90_error |
1.605 s |
Fermi_GBM |
| T90_start |
16:25:14.900 UTC |
Fermi_GBM |
| fluence |
2.49e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
8.47e-08 erg/cm² |
Fermi_GBM |
| T100 |
7.616 s |
|
| GBM_located |
True |
|
| mjd |
54962.68420023148 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090511684 |
| trigger_name |
bn090511684 |
| ra |
161.9000° |
| decl |
51.3000° |
| pos_error |
5.15e+00° |
| datum |
2009-05-11 |
| t_trigger |
16:25:16.372 UTC |
| T90 |
7.616 s |
| T90_error |
1.605 s |
| T90_start |
16:25:14.900 UTC |
| fluence |
2.49e-06 erg/cm² |
| fluence_error |
8.47e-08 erg/cm² |
| flux_1024 |
3.46e+00 erg/cm²/s |
| flux_1024_error |
1.85e-01 erg/cm²/s |
| flux_1024_time |
0.00e+00 erg/cm²/s |
| flux_64 |
5.56e+00 erg/cm²/s |
| flux_64_error |
7.96e-01 erg/cm²/s |
| GCN 9399 table |
|---|
| GRB_name |
GRB090511A |
| GCN_number |
9399 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
16:25:16.370 UTC |
| ra |
161.9000° |
| decl |
51.3000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9399
SUBJECT: GRB 090511: Fermi GBM Detection
DATE: 09/05/19 20:48:51 GMT
FROM: Valerie Connaughton at MSFC
Valerie Connaughton (UAH) reports on behalf of the Fermi GBM Team:
"At 16:25:16.37 UT on 11 May 2009, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 090511 (trigger 263751918 / 090511684).
The on-ground calculated location, using the GBM trigger
data, is RA = 161.9, DEC = 51.3 (J2000 degrees,
equivalent to 10 h 48 m, 51 d 18 '), with an uncertainty
of 7.0 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 67 degrees.
The GBM light curve consists of a single pulse
with a duration (T90) of about 14 s (8-1000 keV).
The time-averaged spectrum from T0-5.1 s to T0+4.1 s is
best fit by a power law function with an exponential
high energy cutoff. The power law index is -0.95 +/- 0.18 and
the cutoff energy, parameterized as Epeak, is 391 +/- 157 keV.
The event fluence (8-1000 keV) in this time interval is
(1.8 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+1 s in the 8-1000 keV band
is 2.5 +/- 0.4 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|