| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB081024851 |
|
| T0 |
20:25:33.611 UTC |
Fermi_GBM |
| ra |
145.8000° |
Fermi_GBM |
| decl |
-10.8000° |
Fermi_GBM |
| pos_error |
4.80e+00° |
Fermi_GBM |
| T90 |
56.065 s |
Fermi_GBM |
| T90_error |
2.064 s |
Fermi_GBM |
| T90_start |
20:25:33.611 UTC |
Fermi_GBM |
| fluence |
6.27e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
7.17e-08 erg/cm² |
Fermi_GBM |
| T100 |
56.065 s |
|
| GBM_located |
True |
|
| mjd |
54763.85108346065 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB081024851 |
| trigger_name |
bn081024851 |
| ra |
145.8000° |
| decl |
-10.8000° |
| pos_error |
4.80e+00° |
| datum |
2008-10-24 |
| t_trigger |
20:25:34.123 UTC |
| T90 |
56.065 s |
| T90_error |
2.064 s |
| T90_start |
20:25:33.611 UTC |
| fluence |
6.27e-06 erg/cm² |
| fluence_error |
7.17e-08 erg/cm² |
| flux_1024 |
2.37e+00 erg/cm²/s |
| flux_1024_error |
1.81e-01 erg/cm²/s |
| flux_1024_time |
1.70e+01 erg/cm²/s |
| flux_64 |
4.58e+00 erg/cm²/s |
| flux_64_error |
8.95e-01 erg/cm²/s |
| GCN 8498 table |
|---|
| GRB_name |
GRB081024C |
| GCN_number |
8498 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
20:25:34 UTC |
| ra |
147.6000° |
| decl |
-8.2000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 8498
SUBJECT: GRB 081024C: Fermi Gamma-ray Burst Monitor detection
DATE: 08/11/07 20:34:54 GMT
FROM: Valerie Connaughton at MSFC
Valerie Connaughton (UAH) reports on behalf of the Fermi GBM Team:
"At 20:25:34 UT on 24 October 2008, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 081024C (trigger 246572735 / 081024851).
The on-ground calculated location, using the GBM trigger
data, is RA = 147.6, DEC = -8.2 (J2000 degrees, equivalent to 09h50m,
-08d12'), with an uncertainty of 3.2 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 78 degrees.
The GBM light curve consists of a single weak peak with some
substructure, lasting about 65 seconds.
The time-averaged spectrum from T0-8 s to T0+57 s is best fit by
a Band function with Epeak = 65 +/- 7 keV,
alpha = -0.6 +/- 0.2, and beta = -2.5 +/- 0.2
(chi squared 358 for 355 d.o.f.)
The event fluence (50 -- 300 keV) in this time interval is
(4.0 +/- 0.9)E-6 erg/cm^2, and its 1-second peak flux in the same
energy range is approximately 1 ph/cm^2/sec.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|