| Summary table |
|---|
| Variable |
Value |
Source |
| T0 |
3:25:08 UTC |
Swift |
| ra |
163.7220° |
Swift |
| decl |
-14.1770° |
Swift |
| pos_error |
2.33e-02° |
Swift |
| T90 |
9.0 s |
Swift |
| T90_start |
3:25:08 UTC |
Swift |
| fluence |
2.60e-07 erg/cm² |
Swift |
| T100 |
9.0 s |
|
| GBM_located |
False |
|
| mjd |
56650.1424537037 |
Swift |
| Swift table |
|---|
| GRB_name |
GRB131224B |
| t_trigger |
3:25:08 UTC |
| ra |
163.7220° |
| decl |
-14.1770° |
| pos_error |
2.33e-02° |
| T90 |
9.0 s |
| fluence |
2.60e-07 erg/cm² |
| GCN 15654 table |
|---|
| GRB_name |
GRB131224B |
| GCN_number |
15654 |
| Detection_method |
Swift-BAT Det |
| ra |
163.7220° |
| decl |
-14.1770° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 15654
SUBJECT: GRB 131224B detected in ground analysis of Swift-BAT data
DATE: 14/01/02 23:45:09 GMT
FROM: Jay R. Cummings at NASA/GSFC/Swift
J. R. Cummings and D. M Palmer (Los Alamos) report on behalf of the
Swift-BAT team:
At 03:25:08 while Swift was executing a pre-planned slew, BAT detected a rate
increase. In ground analysis, a significant source was found at RA, Dec
163.722, -14.177 which is
RA (J2000) 10h 54m 53.3s
Dec (J2000) -14d 10' 36"
with an estimated 90% confidence error radius of 3 arcmin. This location
was about 95% coded in the BAT field of view during the burst.
The mask-weighted lightcurve shows two symmetrical peaks, the second peak
about 1/3 the size of the first, each about 4 seconds long and separated by
a gap of about 2 seconds. T90 is about 9 seconds.
The average spectrum over 11 seconds is well fit by a simple power-law
function with a photon index of 2.09 +- 0.20. The fluence was
(2.6 +- 0.3) x 10^-7 ergs/cm^2. Errors are 90% confidence.
Because this burst was noticed a week after it occurred, there is no followup
planned with Swift.
|