| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB100224112 |
|
| T0 |
2:40:51.893 UTC |
Fermi_GBM |
| ra |
269.5600° |
Fermi_GBM |
| decl |
-17.0800° |
Fermi_GBM |
| pos_error |
2.94e+00° |
Fermi_GBM |
| T90 |
67.329 s |
Fermi_GBM |
| T90_error |
6.988 s |
Fermi_GBM |
| T90_start |
2:40:51.893 UTC |
Fermi_GBM |
| fluence |
1.07e-05 erg/cm² |
Fermi_GBM |
| fluence_error |
3.69e-07 erg/cm² |
Fermi_GBM |
| T100 |
67.329 s |
|
| GBM_located |
True |
|
| mjd |
55251.11171172454 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB100224112 |
| trigger_name |
bn100224112 |
| ra |
269.5600° |
| decl |
-17.0800° |
| pos_error |
2.94e+00° |
| datum |
2010-02-24 |
| t_trigger |
2:40:55.477 UTC |
| T90 |
67.329 s |
| T90_error |
6.988 s |
| T90_start |
2:40:51.893 UTC |
| fluence |
1.07e-05 erg/cm² |
| fluence_error |
3.69e-07 erg/cm² |
| flux_1024 |
1.09e+01 erg/cm²/s |
| flux_1024_error |
2.95e-01 erg/cm²/s |
| flux_1024_time |
1.68e+01 erg/cm²/s |
| flux_64 |
1.38e+01 erg/cm²/s |
| flux_64_error |
1.26e+00 erg/cm²/s |
| GCN 10457 table |
|---|
| GRB_name |
GRB100224B |
| GCN_number |
10457 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
2:40:55.480 UTC |
| ra |
269.5600° |
| decl |
-17.0800° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 10457
SUBJECT: GRB 100224B: Fermi GBM detection
DATE: 10/02/26 15:58:41 GMT
FROM: Suzzanne Foley at MPE
Suzanne Foley (MPE)
reports on behalf of the Fermi GBM Team:
"At 02:40:55.48 UT on 24 February 2010, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 100224B (trigger 288672057 / 100224112).
The on-ground calculated location, using the GBM trigger
data, is RA = 269.56, DEC = -17.08 (J2000 degrees,
equivalent to 17 h 58 m, -17 d 05 '), with an uncertainty
of 1.6 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 88 degrees.
The GBM light curve consists of 3 peaks
with a duration (T90) of about 77 (+/-2) s (50-300 keV)
starting at T0-5.6 s. The time-averaged spectrum from
T0-7.2 s to T0+71.7 s is well fit by a power law function
with an exponential high energy cutoff. The power law
index is -1.36 (+0.07/-0.06) and the cutoff energy,
parameterized as Epeak, is 181.40 (+31.50/-23.60) keV
(CSTAT 591 for 361 d.o.f.).
The event fluence (8-1000 keV) in this time interval is
(1.08 +/- 0.05 )E-5 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+16.4 s in the 8-1000 keV band
is 10.7 +/- 0.3 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
[GCN OPS NOTE(26feb10): The administrator corrected the mistaken
first name of the author. Apologies.]
|