| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090513916 |
|
| T0 |
21:58:46.896 UTC |
Fermi_GBM |
| ra |
269.8000° |
Fermi_GBM |
| decl |
-31.6000° |
Fermi_GBM |
| pos_error |
5.57e+00° |
Fermi_GBM |
| T90 |
25.28 s |
Fermi_GBM |
| T90_error |
7.146 s |
Fermi_GBM |
| T90_start |
21:58:46.896 UTC |
Fermi_GBM |
| fluence |
4.94e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
1.77e-07 erg/cm² |
Fermi_GBM |
| T100 |
25.28 s |
|
| GBM_located |
True |
|
| mjd |
54964.91582055556 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090513916 |
| trigger_name |
bn090513916 |
| ra |
269.8000° |
| decl |
-31.6000° |
| pos_error |
5.57e+00° |
| datum |
2009-05-13 |
| t_trigger |
21:58:47.920 UTC |
| T90 |
25.28 s |
| T90_error |
7.146 s |
| T90_start |
21:58:46.896 UTC |
| fluence |
4.94e-06 erg/cm² |
| fluence_error |
1.77e-07 erg/cm² |
| flux_1024 |
2.12e+00 erg/cm²/s |
| flux_1024_error |
1.66e-01 erg/cm²/s |
| flux_1024_time |
4.99e+00 erg/cm²/s |
| flux_64 |
4.87e+00 erg/cm²/s |
| flux_64_error |
1.03e+00 erg/cm²/s |
| GCN 9390 table |
|---|
| GRB_name |
GRB090513A |
| GCN_number |
9390 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
21:58:47.920 UTC |
| ra |
269.8000° |
| decl |
-31.6000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9390
SUBJECT: GRB090513: Fermi GBM detection
DATE: 09/05/18 12:06:28 GMT
FROM: Colleen A. Wilson at NASA/MSFC/NSSTC
Colleen A. Wilson-Hodge (NASA/MSFC)
reports on behalf of the Fermi GBM Team:
"At 21:58:47.92 UT on 13 May 2009, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 090513 (trigger 263944729 / 090513.916).
The on-ground calculated location, using the GBM trigger
data, is RA = 269.8, DEC = -31.6 (J2000 degrees,
equivalent to 17 h 59 m, -31 d 36'), with an uncertainty
of 4.6 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 89 degrees.
The GBM light curve shows a broad peak
with a duration (T90) of about 23 s (8-1000 keV).
The time-averaged spectrum from T0-1 s to T0+19 s is
adequately fit by a power law function with an exponential
high energy cutoff. The power law index is -0.9 +/- 0.1 and
the cutoff energy, parameterized as Epeak, is 850 +/- 390 keV
The event fluence (8-1000 keV) in this time interval is
(6.8 +/- 0.4)E-06 erg/cm^2. The 1 s peak photon flux measured
starting from T0+5.1 s in the 8-1000 keV band
is 2.7 +/- 0.2 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|