batgrbproduct Analysis for Trigger=634200

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Mar 10 20:21:44 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger634200/GCN5_download_cron
======================================================================

  Trigger: 00634200      Segment: 000

  BAT Trigger Time: 447635000   [s; MET]
      Trigger Stop: 447635064   [s; MET]
               UTC: 2015-03-09T23:03:06.711860    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 276.987461493266   Dec: 86.4295417431885  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    13
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    13

  Flight Position:   [ source = BAT ]
    RA: 276.987461493266   Dec: 86.4295417431885  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 277.005960747443   Dec: 86.4155816577206  [deg; J2000]  
        { 18h 28m 01.4s , +86d 24' 56.1" }
         +/- 1.85010091677195 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.738597157794 [arcmin] (formal 1-sigma fit error)
    SNR: 12.6302119759283
 
  Angular difference between Flight and Ground position is 0.840464 arcmin
 
  Partial Coding Fraction: 0.5    [ including projection effects ]

  Duration
     T90: 242.539999961853 +/- 6.34284606090274
        Measured from: -191.831999897957
                   to: 50.7080000638962     [s; relative to TRIGTIME]
     T50: 25.2919999361038 +/- 2.95526648428421
        Measured from: -182.003999888897
                   to: -156.711999952793     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -177.487999975681     
                   to: -176.487999975681     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -197.319999992847     
                   to: 119.072000026703     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     6.062385   9.697076   8.246133   2.090323
           0.131905   0.140550   0.127077   0.115236 [error]
 Peak      0.198367   0.398234   0.396642   0.130781
           0.010631   0.013225   0.013777   0.010155 [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 2.02e-06 4.03e-06 6.27e-06 2.15e-05 1.75e-05 3.38e-05   erg/cm2
              Error 8.57e-08 9.87e-08 1.41e-07 1.15e-06 3.55e-07 1.20e-06   erg/cm2
Peak flux Power-law 2.04e+00 2.73e+00 2.68e+00 4.73e+00 8.99e+00 1.22e+01   ph/cm2/s
              Error 1.52e-01 1.23e-01 1.09e-01 4.17e-01 3.37e-01 4.98e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.85e-06 4.08e-06 6.45e-06 1.47e-05 1.72e-05 2.71e-05   erg/cm2
              Error 1.14e-07 1.04e-07 1.67e-07 2.67e-06 3.92e-07 2.68e-06   erg/cm2
Peak flux Cutoff-PL 1.90e+00 2.77e+00 2.77e+00 3.58e+00 8.90e+00 1.10e+01   ph/cm2/s
              Error 1.92e-01 1.32e-01 1.36e-01 9.07e-01 3.47e-01 9.64e-01   ph/cm2/s
 
Fluence        Band 7.83e-07 1.24e-06 1.04e-06 5.08e-07 3.41e-06 3.58e-06   erg/cm2
              Error 1.06e-07 1.36e-07 2.06e-07 -------- 4.30e-07 7.15e-07   erg/cm2
Peak flux      Band 1.96e-01 2.49e-01 9.06e-02 3.13e-02 5.57e-01 5.68e-01   ph/cm2/s
              Error 1.22e-01 -------- -------- -------- -------- 2.09e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.362    0.038    -      -           5.68e-03 1.12e-04   49.650 57
CPL   1.048    0.158     175.0   74.7      7.77e-03 1.20e-03   37.400 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.024    0.064    -      -           7.80e-02 2.87e-03   50.560 57
CPL   0.749    0.253     260.5  419.2      1.04e-01 2.66e-02   46.930 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: 50.048000 sec.
T50 in the 50-300 keV band: 10.944000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  316.392 -197.320  119.072
T90   242.540 -191.832   50.708
T50    25.292 -182.004 -156.712
Peak    1.000 -177.488 -176.488

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  277.0060 +86.4156 0.0152   25.9   68.0       2.7045    12.6  TRIG_00634200       
------------------------------------------
 
Foreground time interval of the image:
-96.899  73.601 (delta_t = 170.500 [sec])
Background time interval of the image:

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 -197.320 sec. to  119.072 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.36179     ( -0.0375527   0.0374644 )
Norm@50keV  : 5.67821E-03    ( -0.000111937   0.000111894 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.65 using 59 PHA bins.
# Reduced chi-squared =         0.8710 for     57 degrees of freedom 
# Null hypothesis probability =   7.445710e-01
 
Photon flux (15-150 keV)    in 316.4 sec: 0.685741 ( -0.0152199  0.0152652 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.7501e-05 ( -3.54786e-07  3.55036e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from -197.320 sec. to  119.072 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.04844     ( -0.160546   0.155067 )
Epeak [keV] : 174.975      ( -39.9211 109.426 )
Norm@50keV  : 7.76911E-03    ( -0.0010908   0.00131451 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.40 using 59 PHA bins.
# Reduced chi-squared =         0.6679 for     56 degrees of freedom 
# Null hypothesis probability =   9.735667e-01
 
Photon flux (15-150 keV)    in 316.4 sec: 0.668995 ( -0.017003  0.017088 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.71766e-05 ( -3.93222e-07  3.91418e-07 ) ergs/cm2
 
Band function
Time interval is from -197.320 sec. to  119.072 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.659627   ( -0.519885   1.51999 )
beta        : -1.47543    ( 1.47474   0.0806457 )
Epeak [keV] : 84.4764      ( -42.6435 171.206 )
Norm@50keV   : 1.31793E-02    ( -0.00663446   0.138388 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          36.60 using 59 PHA bins.
# Reduced chi-squared =         0.6654 for     55 degrees of freedom 
# Null hypothesis probability =   9.734817e-01
 
Photon flux (15-150 keV)    in 316.4 sec: 0.189048 ( 6.81095  -0.021453 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.41019e-06 ( -3.40798e-06  -4.48627e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 18.7564  (  )
R^2/D10^2   : 3.61798E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         442.78 using 59 PHA bins.
# Reduced chi-squared =         7.7681 for     57 degrees of freedom 
# Null hypothesis probability =   4.379935e-61
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.952e-07   3.243e-08
25- 50  3.790e-06   1.123e-07
50-150  9.773e-06   3.306e-07
15-150  1.436e-05   3.037e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 2.90621       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         138.17 using 59 PHA bins.
# Reduced chi-squared =         2.4241 for     57 degrees of freedom 
# Null hypothesis probability =   1.083332e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.290e-06   5.141e-08
25- 50  4.405e-06   1.012e-07
50-150  9.660e-06   2.136e-07
15-150  1.635e-05   3.433e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.38399        (-0.713452      0.761647)
R1^2/D10^2  : 0.328556        (-0.0777766      0.109969)
kT2 [keV]   : 30.4343        (-2.35421      3.03344)
R2^2/D10^2  : 5.71313E-03    (-0.00161398   0.00191489)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.16 using 59 PHA bins.
# Reduced chi-squared =         0.7302 for     55 degrees of freedom 
# Null hypothesis probability =   9.334218e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.625e-06   1.204e-07
25- 50  4.199e-06   1.883e-07
50-150  1.127e-05   5.600e-07
15-150  1.709e-05   7.420e-07

Peak spectrum fit

Power-law model
Time interval is from -177.488 sec. to -176.488 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.02402     ( -0.0645062   0.0641443 )
Norm@50keV  : 7.80115E-02    ( -0.00287356   0.00287206 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.56 using 59 PHA bins.
# Reduced chi-squared =         0.8870 for     57 degrees of freedom 
# Null hypothesis probability =   7.137177e-01
 
Photon flux (15-150 keV)    in 1 sec: 8.99381 ( -0.337145  0.337563 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.36543e-07 ( -3.407e-08  3.41361e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from -177.488 sec. to -176.488 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.748708     ( -0.262366   0.243989 )
Epeak [keV] : 260.493      ( -99.1265 739.178 )
Norm@50keV  : 0.103681    ( -0.0219852   0.0311373 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.93 using 59 PHA bins.
# Reduced chi-squared =         0.8380 for     56 degrees of freedom 
# Null hypothesis probability =   8.007947e-01
 
Photon flux (15-150 keV)    in 1 sec: 8.89890 ( -0.34724  0.34736 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.26494e-07 ( -3.5867e-08  3.5699e-08 ) ergs/cm2
 
Band function
Time interval is from -177.488 sec. to -176.488 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99996   ( -14.9988   -4.99996 )
beta        : -1.07890    ( -0.0720679   0.0714028 )
Epeak [keV] : 28.3936      ( -6.55136 3.81546 )
Norm@50keV   : 2555.91    ( -93.3815   9365.22 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.36 using 59 PHA bins.
# Reduced chi-squared =         0.8429 for     55 degrees of freedom 
# Null hypothesis probability =   7.901730e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.557256 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.37389e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 21.4411  (  )
R^2/D10^2   : 0.348762  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         164.70 using 59 PHA bins.
# Reduced chi-squared =         2.8895 for     57 degrees of freedom 
# Null hypothesis probability =   2.140388e-12
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.002e-08   2.160e-09
25- 50  1.563e-07   8.350e-09
50-150  5.363e-07   3.245e-08
15-150  7.226e-07   3.215e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 36.3121       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         225.35 using 59 PHA bins.
# Reduced chi-squared =         3.9534 for     57 degrees of freedom 
# Null hypothesis probability =   7.131659e-22
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.042e-08   3.805e-09
25- 50  1.739e-07   6.950e-09
50-150  3.815e-07   1.605e-08
15-150  6.458e-07   2.485e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.65741        (-1.41738      1.55282)
R1^2/D10^2  : 2.44189        (-0.806085      1.38821)
kT2 [keV]   : 39.0499        (-6.10235      10.4392)
R2^2/D10^2  : 4.45246E-02    (-0.02229   0.0319143)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.29 using 59 PHA bins.
# Reduced chi-squared =         0.7871 for     55 degrees of freedom 
# Null hypothesis probability =   8.734013e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.470e-08   8.075e-09
25- 50  1.686e-07   1.750e-08
50-150  6.109e-07   1.252e-07
15-150  8.343e-07   1.179e-07
Plot creation:
Tue Mar 10 20:26:35 EDT 2015