| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB100722096 |
|
| T0 |
2:18:37.240 UTC |
GCN_circulars,Fermi GBM Det |
| ra |
238.7700° |
Fermi_GBM |
| decl |
-15.6100° |
Fermi_GBM |
| pos_error |
2.72e+00° |
Fermi_GBM |
| T90 |
7.165 s |
Fermi_GBM |
| T90_error |
1.055 s |
Fermi_GBM |
| T90_start |
2:18:37.245 UTC |
Fermi_GBM |
| fluence |
8.31e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
3.92e-08 erg/cm² |
Fermi_GBM |
| T100 |
7.17 s |
|
| GBM_located |
True |
|
| mjd |
55399.09626435185 |
GCN_circulars,Fermi GBM Det |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB100722096 |
| trigger_name |
bn100722096 |
| ra |
238.7700° |
| decl |
-15.6100° |
| pos_error |
2.72e+00° |
| datum |
2010-07-22 |
| t_trigger |
2:18:37.242 UTC |
| T90 |
7.165 s |
| T90_error |
1.055 s |
| T90_start |
2:18:37.245 UTC |
| fluence |
8.31e-06 erg/cm² |
| fluence_error |
3.92e-08 erg/cm² |
| flux_1024 |
2.49e+01 erg/cm²/s |
| flux_1024_error |
4.44e-01 erg/cm²/s |
| flux_1024_time |
1.60e+00 erg/cm²/s |
| flux_64 |
4.38e+01 erg/cm²/s |
| flux_64_error |
2.02e+00 erg/cm²/s |
| GCN 10966 table |
|---|
| GRB_name |
GRB100722A |
| GCN_number |
10966 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
2:18:37.240 UTC |
| ra |
238.8000° |
| decl |
-15.6000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 10966
SUBJECT: GRB 100722A: Fermi GBM detection
DATE: 10/07/23 08:12:08 GMT
FROM: Elisabetta Bissaldi at MPE
Elisabetta Bissaldi (MPE)
reports on behalf of the Fermi GBM Team:
"At 02:18:37.24 UT on 22 July 2010, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 100722A (trigger 301457919 / 100722096).
The on-ground calculated location, using the GBM trigger
data, is RA = 238.8, DEC = -15.6 (J2000 degrees,
equivalent to 15h 55m, -15d 36), with an uncertainty
of 1.1 degrees (radius, 1-sigma containment,
statistical only; there is additionally a systematic
error which is currently estimated to be 2 to 3 degrees).
The Fermi Observatory executed a maneuver following this trigger and
tracked the burst location for the next 5 hours, subject to
Earth-angle constraints.
The angle from the Fermi LAT boresight is 33 degrees.
This burst was also independently detected by INTEGRAL SPI-ACS.
The GBM light curve consists of several peaks
with a duration (T90) of 6.6 +/- 0.2 s (50-300 keV).
The time-averaged spectrum from T0 to T0+6.7 s is
best fit by a Band function with Epeak = 68.1 (-3.5/+3.4) keV,
alpha = -1.01 (-0.06/+0.07), beta = -2.54 (-0.10/+0.08)
(Castor C-STAT 627 for 479 d.o.f.).
The event fluence (8-1000 keV) in this time interval is
(9.5 +/- 0.09) erg/cm^2. The 1-sec peak photon flux measured
starting from T0 in the 8-1000 keV band
is 26.9 +/- 0.4 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|