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.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Sun Jan 19 21:26:21 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger332516
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Trigger: 00332516 Segment: 000
BAT Trigger Time: 246520392.064 [s; MET]
Trigger Stop: 246520392.192 [s; MET]
UTC: 2008-10-24T05:53:08.864600 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 27.8984760230204 Dec: 61.3465228980006 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 9.9
Image Trigger?: NO
Rate S/N Ratio: 29.4788059459674 [ if not an image trigger ]
Image S/N Ratio: 9.9
Analysis Position: [ source = BAT ]
RA: 27.8984760230204 Dec: 61.3465228980006 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 27.8893826908972 Dec: 61.3537443873605 [deg; J2000]
{ 01h 51m 33.5s , +61d 21' 13.5" }
+/- 1.65276963177235 [arcmin] (estimated 90% radius based on SNR)
+/- 0.76410122260265 [arcmin] (formal 1-sigma fit error)
SNR: 14.838379967615
Angular difference between the analysis and refined position is 0.506132 arcmin
Partial Coding Fraction: 0.9765625 [ including projection effects ]
Duration
T90: 1.82400000095367 +/- 0.586051204050593
Measured from: -1.6240000128746
to: 0.199999988079071 [s; relative to TRIGTIME]
T50: 0.656000018119812 +/- 0.332415418371665
Measured from: -0.592000007629395
to: 0.0640000104904175 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.732000023126602
to: 0.267999976873398 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.65600001811981
to: 0.267999976873398 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.038974 0.065417 0.055679 0.026605
0.006791 0.007191 0.006584 0.005669 [error]
Peak 0.029996 0.052304 0.042152 0.023384
0.005000 0.005465 0.005115 0.004337 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 1.924 -1.656 0.268
T90 1.824 -1.624 0.200
T50 0.656 -0.592 0.064
Peak 1.000 -0.732 0.268
====== 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: N/A)
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 -1.106 -0.205 0.212 - - - 6.32e-03 -7.21e-04 7.20e-04 81.600 57
CPL -1.108 -0.200 0.221 9999.360 -9999.360 -9999.360 6.34e-03 -6.34e-03 4.43e-03 81.620 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 -1.077 -0.205 0.212 - - - 9.39e-03 -1.06e-03 1.06e-03 66.320 57
CPL -1.074 -0.204 0.216 9999.360 -9999.360 -9999.360 9.44e-03 -9.44e-03 4.47e-03 66.350 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 1.07e-08 2.52e-08 4.67e-08 2.09e-07 1.27e-07 2.92e-07 erg/cm2
90%_error_low -2.40e-09 -3.44e-09 -6.30e-09 -5.78e-08 -1.61e-08 -6.22e-08 erg/cm2
90%_error_hi 2.55e-09 3.36e-09 6.21e-09 7.30e-08 1.62e-08 7.53e-08 erg/cm2
Peak flux PL 2.58e-01 3.34e-01 3.17e-01 5.32e-01 1.09e+00 1.44e+00 ph/cm2/s
90%_error_low -5.84e-02 -4.71e-02 -4.08e-02 -1.37e-01 -1.25e-01 -1.76e-01 ph/cm2/s
90%_error_hi 6.25e-02 4.59e-02 4.02e-02 1.67e-01 1.26e-01 1.82e-01 ph/cm2/s
Fluence CPL 1.07e-08 2.52e-08 4.60e-08 2.26e-07 1.28e-07 2.90e-07 erg/cm2
90%_error_low N/A N/A N/A -1.29e-07 N/A -1.11e-07 erg/cm2
90%_error_hi N/A N/A N/A 1.34e-08 N/A 3.46e-08 erg/cm2
Peak flux CPL 2.58e-01 3.34e-01 3.17e-01 5.28e-01 1.09e+00 1.45e+00 ph/cm2/s
90%_error_low N/A -4.76e-02 -4.08e-02 N/A -1.25e-01 -2.35e-01 ph/cm2/s
90%_error_hi N/A 4.68e-02 4.03e-02 N/A 1.26e-01 1.78e-01 ph/cm2/s
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