Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done using the HEASARC data.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Wed Jan 22 18:46:17 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger178750
======================================================================
Trigger: 00178750 Segment: 000
BAT Trigger Time: 159810892.8 [s; MET]
Trigger Stop: 159810893.824 [s; MET]
UTC: 2006-01-24T15:54:51.825540 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 77.0434182139533 Dec: 69.7093915850525 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.59
Image Trigger?: NO
Rate S/N Ratio: 10.7238052947636 [ if not an image trigger ]
Image S/N Ratio: 6.59
Analysis Position: [ source = BAT ]
RA: 77.0434182139533 Dec: 69.7093915850525 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 77.1048846448311 Dec: 69.7250425081988 [deg; J2000]
{ 05h 08m 25.2s , +69d 43' 30.2" }
+/- 1.71076130854364 [arcmin] (estimated 90% radius based on SNR)
+/- 0.71950606777471 [arcmin] (formal 1-sigma fit error)
SNR: 14.1250709479624
Angular difference between the analysis and refined position is 1.586276 arcmin
Partial Coding Fraction: 0.6171875 [ including projection effects ]
Duration
T90: 13.4239999949932 +/- 1.2916485778453
Measured from: -0.548000007867813
to: 12.8759999871254 [s; relative to TRIGTIME]
T50: 7.90000000596046 +/- 2.23261727894755
Measured from: 1.21999999880791
to: 9.12000000476837 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.183999985456467
to: 1.18399998545647 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.20000001788139
to: 13.5479999780655 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.243279 0.310482 0.159298 0.061306
0.024313 0.025660 0.023216 0.022237 [error]
Peak 0.024301 0.040557 0.028215 0.013410
0.006538 0.006896 0.006483 0.005819 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 14.748 -1.200 13.548
T90 13.424 -0.548 12.876
T50 7.900 1.220 9.120
Peak 1.000 0.184 1.184
====== Spectral Analysis Summary =====================================
Model : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index : photon index: E^{Ph_index}
Ph_90err : 90% error of the photon index
Epeak : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm : normalization at 50 keV in both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2 : Chi-Squared
dof : degree of freedo
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.814 -0.183 0.177 - - - 3.43e-03 -3.88e-04 3.81e-04 41.150 57
CPL -1.737 -0.638 0.776 148.485 -148.473 -148.485 3.79e-03 -2.02e-03 6.59e-03 41.120 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.577 -0.358 0.344 - - - 6.75e-03 -1.48e-03 1.45e-03 44.240 57
CPL -0.978 -0.908 1.027 79.328 N/A N/A 1.42e-02 N/A N/A 43.620 56
=== Fluence/Peak Flux Summary ===
Model Band1 Band2 Band3 Band4 Band5 Total
15-25 25-50 50-100 100-350 15-150 15-350 keV
Fluence PL 8.67e-08 1.32e-07 1.50e-07 3.25e-07 4.65e-07 6.93e-07 erg/cm2
90%_error_low -1.26e-08 -1.27e-08 -2.30e-08 -9.16e-08 -5.30e-08 -1.16e-07 erg/cm2
90%_error_hi 1.29e-08 1.26e-08 2.32e-08 1.13e-07 5.38e-08 1.33e-07 erg/cm2
Peak flux PL 2.99e-01 2.88e-01 1.93e-01 2.02e-01 8.61e-01 9.81e-01 ph/cm2/s
90%_error_low -9.30e-02 -6.03e-02 -5.32e-02 -9.24e-02 -1.76e-01 -2.03e-01 ph/cm2/s
90%_error_hi 1.00e-01 5.98e-02 5.30e-02 1.30e-01 1.76e-01 2.05e-01 ph/cm2/s
Fluence CPL 8.61e-08 1.33e-07 1.50e-07 2.81e-07 4.61e-07 6.49e-07 erg/cm2
90%_error_low -1.38e-08 -1.38e-08 -2.39e-08 -1.96e-07 -6.49e-08 -2.17e-07 erg/cm2
90%_error_hi 1.33e-08 1.74e-08 2.35e-08 6.39e-08 5.70e-08 2.38e-07 erg/cm2
Peak flux CPL 2.76e-01 3.08e-01 1.99e-01 9.86e-02 8.43e-01 8.81e-01 ph/cm2/s
90%_error_low -1.07e-01 -7.18e-02 N/A -9.86e-02 -1.80e-01 -2.08e-01 ph/cm2/s
90%_error_hi 1.11e-01 7.94e-02 N/A 1.40e-01 1.80e-01 2.35e-01 ph/cm2/s
======================================================================
Special notes of this burst