| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090608052 |
|
| T0 |
1:15:10.214 UTC |
Fermi_GBM |
| ra |
100.1900° |
Fermi_GBM |
| decl |
-37.4100° |
Fermi_GBM |
| pos_error |
5.55e+00° |
Fermi_GBM |
| T90 |
21.504 s |
Fermi_GBM |
| T90_error |
2.29 s |
Fermi_GBM |
| T90_start |
1:15:10.214 UTC |
Fermi_GBM |
| fluence |
1.24e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
1.75e-08 erg/cm² |
Fermi_GBM |
| T100 |
21.504 s |
|
| GBM_located |
True |
|
| mjd |
54990.05220155093 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090608052 |
| trigger_name |
bn090608052 |
| ra |
100.1900° |
| decl |
-37.4100° |
| pos_error |
5.55e+00° |
| datum |
2009-06-08 |
| t_trigger |
1:15:26.598 UTC |
| T90 |
21.504 s |
| T90_error |
2.29 s |
| T90_start |
1:15:10.214 UTC |
| fluence |
1.24e-06 erg/cm² |
| fluence_error |
1.75e-08 erg/cm² |
| flux_1024 |
2.25e+00 erg/cm²/s |
| flux_1024_error |
1.71e-01 erg/cm²/s |
| flux_1024_time |
-1.73e+00 erg/cm²/s |
| flux_64 |
4.32e+00 erg/cm²/s |
| flux_64_error |
8.15e-01 erg/cm²/s |
| GCN 9498 table |
|---|
| GRB_name |
GRB090608A |
| GCN_number |
9498 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
1:15:26.600 UTC |
| ra |
100.2000° |
| decl |
-37.4000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9498
SUBJECT: GRB 090608: Fermi GBM detection
DATE: 09/06/09 04:21:53 GMT
FROM: Alexander van der Horst at NASA/MSFC
A.J. van der Horst (NASA/MSFC/ORAU) reports on behalf of the
Fermi GBM Team:
"At 01:15:26.60 UT on 8 June 2009, the Fermi Gamma-ray Burst Monitor
(GBM) triggered and located GRB 090608 (trigger 266116528 / 090608.052).
The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 100.2, Dec = -37.4 (J2000 degrees, equivalent to
J2000 6h41m, -37d25'), with a statistical uncertainty of 4.5 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 93 degrees.
The GBM light curve of this long and soft GRB consists of multiple peaks
and has a duration (T90) of 61 s (8-1000 keV). The time-averaged
spectrum from T0-18.4 to T0+20.5 s is adequately fit by a power law with
index = -1.83 +/- 0.07.
The fluence (8-1000 keV) in this interval is (3.2 +/- 0.1)E-6 erg/cm^2.
The 1-sec peak photon flux measured starting from T0+2.1s in the
8-1000 keV band is 2.7 +/- 0.1 ph/s/cm^2.
The spectral and temporal analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|