batgrbproduct Analysis for Trigger=602884

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jun 30 08:38:45 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger602884/GCN5_download_cron
======================================================================

  Trigger: 00602884      Segment: 000

  BAT Trigger Time: 425744262.528   [s; MET]
      Trigger Stop: 425744263.552   [s; MET]
               UTC: 2014-06-29T14:17:30.326760    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 248.981975533517   Dec: 41.890321954013  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.95
     Image Trigger?:     NO
     Rate S/N Ratio:     10.9087121146357  [ if not an image trigger ]
     Image S/N Ratio:    7.95

  Flight Position:   [ source = BAT ]
    RA: 248.981975533517   Dec: 41.890321954013  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 249.01550829439   Dec: 41.897432408696  [deg; J2000]  
        { 16h 36m 03.7s , +41d 53' 50.8" }
         +/- 1.74355121767275 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.08123118433294 [arcmin] (formal 1-sigma fit error)
    SNR: 13.7471177343997
 
  Angular difference between Flight and Ground position is 1.557252 arcmin
 
  Partial Coding Fraction: 0.4179688    [ including projection effects ]

  Duration
     T90: 40.5319999456406 +/- 11.5414884203924
        Measured from: -4.35199987888336
                   to: 36.1800000667572     [s; relative to TRIGTIME]
     T50: 9.98399996757507 +/- 2.78480233190823
        Measured from: 5.8280001282692
                   to: 15.8120000958443     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 12.1520000100136     
                   to: 13.1520000100136     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -7.61199998855591     
                   to: 54.944000005722     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.169470   1.513037   1.006468   0.127107
           0.075610   0.075667   0.067143   0.060448 [error]
 Peak      0.117495   0.177845   0.186231   0.046751
           0.013001   0.014266   0.013646   0.010271 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
=== 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   Power-law 4.59e-07 6.76e-07 7.42e-07 1.53e-06 2.34e-06 3.41e-06   erg/cm2
              Error 4.42e-08 4.06e-08 6.56e-08 2.81e-07 1.54e-07 3.40e-07   erg/cm2
Peak flux Power-law 1.32e+00 1.44e+00 1.12e+00 1.44e+00 4.43e+00 5.33e+00   ph/cm2/s
              Error 1.96e-01 1.34e-01 1.05e-01 2.72e-01 3.75e-01 4.36e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.26e-07 7.09e-07 7.54e-07 7.63e-07 2.26e-06 2.65e-06   erg/cm2
              Error 5.22e-08 5.03e-08 7.08e-08 4.78e-07 1.70e-07 5.07e-07   erg/cm2
Peak flux Cutoff-PL 1.12e+00 1.51e+00 1.22e+00 7.88e-01 4.31e+00 4.64e+00   ph/cm2/s
              Error 2.44e-01 1.53e-01 1.33e-01 -------- 3.87e-01 5.53e-01   ph/cm2/s
 
Fluence        Band 4.21e-07 7.08e-07 7.54e-07 7.71e-07 2.25e-06 2.66e-06   erg/cm2
              Error 5.03e-08 -------- 6.74e-08 -------- -------- --------   erg/cm2
Peak flux      Band 1.14e+00 1.50e+00 1.22e+00 8.58e-01 4.33e+00 4.72e+00   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.864    0.109    -      -           4.08e-03 2.66e-04   46.450 57
CPL   1.383    0.442      60.9   45.5      7.28e-03 4.06e-03   42.540 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.361    0.133    -      -           3.67e-02 2.96e-03   70.040 57
CPL   0.655    0.604     105.9  100.7      7.78e-02 5.41e-02   65.290 56
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the 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 PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom
 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 20.160000 sec.
T50 in the 50-300 keV band: 9.024000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   62.556   -7.612   54.944
T90    40.532   -4.352   36.180
T50     9.984    5.828   15.812
Peak    1.000   12.152   13.152

Image

Pre-slew 15-350 keV image (Event data; bkg subtracted)

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  249.0155 +41.8974 0.0140   44.1    1.3       1.2755    13.7  TRIG_00602884       
------------------------------------------
 
Foreground time interval of the image:
 -7.612  10.273 (delta_t =  17.885 [sec])
Background time interval of the image:
-239.528  -7.612 (delta_t = 231.916 [sec])

Lightcurves

Notes:

1 s binning

From T0-310 s to T0+310 s
From T100_start - 20 s to T100_end + 30 s
Full time interval

64 ms binning

Full time interval
From T100_start to T100_end
From T0-5 sec to T0+5 sec

16 ms binning

From T100_start-5 s to T100_start+5 s

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

SN=5 or 10 sec. binning (whichever binning is satisfied first)

SN=5 or 10 sec. binning (T < 200 sec)

Spectra

Notes:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Time interval is from   -7.612 sec. to   54.944 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.86433     ( -0.108286   0.110487 )
Norm@50keV  : 4.07619E-03    ( -0.000267153   0.000264873 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.45 using 59 PHA bins.
# Reduced chi-squared =         0.8149 for     57 degrees of freedom 
# Null hypothesis probability =   8.396995e-01
 
Photon flux (15-150 keV)    in 62.56 sec: 0.576315 ( -0.0356195  0.0357005 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.34439e-06 ( -1.53247e-07  1.54152e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -7.612 sec. to   54.944 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.38269     ( -0.463696   0.420012 )
Epeak [keV] : 60.8855      ( -12.7338 78.3473 )
Norm@50keV  : 7.27953E-03    ( -0.00283046   0.00529823 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.54 using 59 PHA bins.
# Reduced chi-squared =         0.7597 for     56 degrees of freedom 
# Null hypothesis probability =   9.076032e-01
 
Photon flux (15-150 keV)    in 62.56 sec: 0.561418 ( -0.037752  0.037804 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.25907e-06 ( -1.6995e-07  1.70883e-07 ) ergs/cm2
 
Band function
Time interval is from   -7.612 sec. to   54.944 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.38268   ( -0.307322   0.571001 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 60.8741      ( -12.7339 78.0476 )
Norm@50keV   : 7.27856E-03    ( -0.00282813   0.0053039 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.54 using 59 PHA bins.
# Reduced chi-squared =         0.7735 for     55 degrees of freedom 
# Null hypothesis probability =   8.900006e-01
 
Photon flux (15-150 keV)    in 62.56 sec: 0.563819 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.25499e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.3288  (-0.934427  1.00425)
R^2/D10^2   : 0.120361  (-0.0306113   0.0414659)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         106.26 using 59 PHA bins.
# Reduced chi-squared =         1.8641 for     57 degrees of freedom 
# Null hypothesis probability =   8.232067e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.425e-07   2.753e-08
25- 50  7.875e-07   5.662e-08
50-150  7.326e-07   9.415e-08
15-150  1.763e-06   1.239e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 93.4382       (-17.6896      25.0596)
Norm        : 2.56365       (-0.225582     0.254061)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.66 using 59 PHA bins.
# Reduced chi-squared =         0.7485 for     57 degrees of freedom 
# Null hypothesis probability =   9.209502e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.189e-07   4.501e-08
25- 50  7.142e-07   4.442e-08
50-150  1.113e-06   3.384e-07
15-150  2.246e-06   3.619e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.83891        (-0.968191      1.09339)
R1^2/D10^2  : 1.31059        (-0.613172      1.35841)
kT2 [keV]   : 20.2359        (-2.82017      4.02667)
R2^2/D10^2  : 1.45084E-02    (-0.00750543   0.0122703)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.69 using 59 PHA bins.
# Reduced chi-squared =         0.7216 for     55 degrees of freedom 
# Null hypothesis probability =   9.403209e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.281e-07   1.008e-07
25- 50  6.931e-07   1.295e-07
50-150  1.116e-06   3.298e-07
15-150  2.237e-06   3.894e-07

Peak spectrum fit

Power-law model
Time interval is from   12.152 sec. to   13.152 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.36062     ( -0.132921   0.133037 )
Norm@50keV  : 3.66517E-02    ( -0.00296367   0.00296346 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.04 using 59 PHA bins.
# Reduced chi-squared =          1.229 for     57 degrees of freedom 
# Null hypothesis probability =   1.150103e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.42523 ( -0.374711  0.375582 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.57124e-07 ( -3.09205e-08  3.10115e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   12.152 sec. to   13.152 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.655041     ( -0.647374   0.560552 )
Epeak [keV] : 105.859      ( -27.1302 174.263 )
Norm@50keV  : 7.78290E-02    ( -0.0344304   0.0738385 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.29 using 59 PHA bins.
# Reduced chi-squared =          1.166 for     56 degrees of freedom 
# Null hypothesis probability =   1.852333e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.30781 ( -0.38634  0.38703 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.4867e-07 ( -3.2487e-08  3.2307e-08 ) ergs/cm2
 
Band function
Time interval is from   12.152 sec. to   13.152 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.655373   ( -0.488154   0.609366 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 105.862      ( -19.878 173.879 )
Norm@50keV   : 7.78032E-02    ( -0.0343698   0.0739157 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.29 using 59 PHA bins.
# Reduced chi-squared =          1.187 for     55 degrees of freedom 
# Null hypothesis probability =   1.614725e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.32867 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.29861e-07 ( -3.29854e-07  -3.1699e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 17.7328  (-1.62694  1.83658)
R^2/D10^2   : 0.301992  (-0.0874673   0.119222)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          85.75 using 59 PHA bins.
# Reduced chi-squared =          1.504 for     57 degrees of freedom 
# Null hypothesis probability =   8.202541e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.910e-08   2.895e-09
25- 50  8.735e-08   1.030e-08
50-150  1.986e-07   2.760e-08
15-150  3.051e-07   3.155e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 18.5650       (-1.50793     1.50777)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.89 using 59 PHA bins.
# Reduced chi-squared =          1.296 for     57 degrees of freedom 
# Null hypothesis probability =   6.559847e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.624e-08   4.675e-09
25- 50  8.895e-08   1.126e-08
50-150  1.951e-07   7.096e-08
15-150  3.303e-07   1.011e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.91392        (-4.82188      4.51931)
R1^2/D10^2  : 2.22927        (-1.45713      5.0888)
kT2 [keV]   : 25.5262        (-6.87564      19.858)
R2^2/D10^2  : 6.96464E-02    (-0.0578628   0.141707)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.31 using 59 PHA bins.
# Reduced chi-squared =          1.224 for     55 degrees of freedom 
# Null hypothesis probability =   1.233606e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.284e-08   1.608e-08
25- 50  8.771e-08   3.582e-08
50-150  2.261e-07   1.082e-07
15-150  3.467e-07   1.265e-07
Plot creation:
Mon Jun 30 08:42:34 EDT 2014