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 May 31 23:04:25 EDT 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger640584
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Trigger: 00640584 Segment: 000
BAT Trigger Time: 453241893.312 [s; MET]
Trigger Stop: 453241895.36 [s; MET]
UTC: 2015-05-13T20:31:19.736540 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 49.0579234177396 Dec: -22.9128777277239 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.43
Image Trigger?: NO
Rate S/N Ratio: 14.247806848775 [ if not an image trigger ]
Image S/N Ratio: 7.43
Analysis Position: [ source = BAT ]
RA: 49.0579234177396 Dec: -22.9128777277239 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 49.0443769914099 Dec: -22.8674867335901 [deg; J2000]
{ 03h 16m 10.7s , -22d 52' 03.0" }
+/- 0.948822040551798 [arcmin] (estimated 90% radius based on SNR)
+/- 0.347052834189802 [arcmin] (formal 1-sigma fit error)
SNR: 32.7877468665144
Angular difference between the analysis and refined position is 2.824518 arcmin
Partial Coding Fraction: 0.640625 [ including projection effects ]
Duration
T90: 161.563999950886 +/- 4.78045349248968
Measured from: -42.5239999890327
to: 119.039999961853 [s; relative to TRIGTIME]
T50: 91.9599999189377 +/- 4.75432434088139
Measured from: -20.8359999656677
to: 71.12399995327 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 115.412000000477
to: 116.412000000477 [s; relative to TRIGTIME]
Total Fluence
Measured from: -54.3319999575615
to: 129.360000014305 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.760649 2.896547 2.610847 0.757879
0.101620 0.106555 0.093728 0.078441 [error]
Peak 0.089566 0.118015 0.112426 0.029228
0.009024 0.010249 0.009346 0.006850 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 183.692 -54.332 129.360
T90 161.564 -42.524 119.040
T50 91.960 -20.836 71.124
Peak 1.000 115.412 116.412
====== 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 -1.310 -0.072 0.072 - - - 3.12e-03 -1.23e-04 1.23e-04 62.320 57
CPL -1.228 -0.116 0.273 513.193 -513.193 -513.193 3.40e-03 -3.73e-04 1.09e-03 62.040 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 -1.403 -0.152 0.151 - - - 2.40e-02 -2.07e-03 2.07e-03 57.450 57
CPL -1.399 -0.153 0.543 9997.110 -9997.110 -9997.110 2.41e-02 -2.41e-02 1.90e-02 57.460 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 6.12e-07 1.26e-06 2.04e-06 7.36e-06 5.64e-06 1.13e-05 erg/cm2
90%_error_low -4.86e-08 -5.97e-08 -9.38e-08 -7.49e-07 -2.35e-07 -8.01e-07 erg/cm2
90%_error_hi 4.99e-08 5.94e-08 9.34e-08 8.08e-07 2.36e-07 8.49e-07 erg/cm2
Peak flux PL 8.98e-01 9.58e-01 7.25e-01 8.92e-01 2.92e+00 3.47e+00 ph/cm2/s
90%_error_low -1.38e-01 -9.20e-02 -7.69e-02 -1.84e-01 -2.58e-01 -3.03e-01 ph/cm2/s
90%_error_hi 1.44e-01 9.10e-02 7.60e-02 2.10e-01 2.58e-01 3.05e-01 ph/cm2/s
Fluence CPL 6.00e-07 1.27e-06 2.05e-06 6.57e-06 5.62e-06 1.05e-05 erg/cm2
90%_error_low -6.03e-08 -6.35e-08 -9.76e-08 -1.96e-06 -2.50e-07 -1.95e-06 erg/cm2
90%_error_hi 5.46e-08 6.44e-08 1.08e-07 1.14e-06 2.49e-07 1.06e-06 erg/cm2
Peak flux CPL 7.07e-01 4.41e-01 1.85e-01 1.38e-01 1.39e+00 1.45e+00 ph/cm2/s
90%_error_low -1.93e-01 -1.17e-01 -8.06e-02 2.13e-02 -3.82e-01 -3.99e-01 ph/cm2/s
90%_error_hi 2.05e-01 1.85e-01 1.11e-01 1.43e-01 4.11e-01 4.90e-01 ph/cm2/s
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