batgrbproduct Analysis for Trigger=633237

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Mar  3 04:06:10 EST 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger633237/GCN5_download_cron
======================================================================

  Trigger: 00633237      Segment: 000

  BAT Trigger Time: 446967769.92   [s; MET]
      Trigger Stop: 446967775.424   [s; MET]
               UTC: 2015-03-02T05:42:36.665740    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 175.508317651857   Dec: 36.8269551392691  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.58
     Image Trigger?:     NO
     Rate S/N Ratio:     12.0415945787923  [ if not an image trigger ]
     Image S/N Ratio:    6.58

  Flight Position:   [ source = BAT ]
    RA: 175.508317651857   Dec: 36.8269551392691  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 175.515028490924   Dec: 36.8517535492648  [deg; J2000]  
        { 11h 42m 03.6s , +36d 51' 06.3" }
         +/- 2.80059279318894 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.59361772277976 [arcmin] (formal 1-sigma fit error)
    SNR: 6.98537709549469
 
  Angular difference between Flight and Ground position is 1.522401 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 23.744000017643 +/- 8.79109375676233
        Measured from: -0.311999917030334
                   to: 23.4320001006126     [s; relative to TRIGTIME]
     T50: 8.63999998569489 +/- 5.43359625375122
        Measured from: 3.20800012350082
                   to: 11.8480001091957     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2.61199998855591     
                   to: 3.61199998855591     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.14399999380112     
                   to: 28.2319999933243     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.115139   0.207184   0.099932   0.064645
           0.027691   0.029139   0.025836   0.024028 [error]
 Peak      0.010355   0.022795   0.016515   0.004616
           0.005250   0.005462   0.004981   0.004431 [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 4.23e-08 6.95e-08 8.64e-08 2.13e-07 2.58e-07 4.11e-07   erg/cm2
              Error 1.12e-08 1.24e-08 2.44e-08 1.23e-07 5.74e-08 1.47e-07   erg/cm2
Peak flux Power-law 1.18e-01 1.31e-01 1.03e-01 1.35e-01 4.03e-01 4.88e-01   ph/cm2/s
              Error 5.92e-02 4.23e-02 3.86e-02 1.04e-01 1.22e-01 1.56e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.96e-08 7.62e-08 8.43e-08 6.17e-08 2.36e-07 2.62e-07   erg/cm2
              Error 1.27e-08 1.89e-08 3.11e-08 1.66e-07 6.94e-08 1.88e-07   erg/cm2
Peak flux Cutoff-PL 1.02e-01 1.41e-01 1.11e-01 6.17e-02 3.92e-01 4.15e-01   ph/cm2/s
              Error 6.80e-02 5.02e-02 4.53e-02 8.94e-02 9.32e-02 1.74e-01   ph/cm2/s
 
Fluence        Band 3.59e-08 8.20e-08 7.83e-08 1.19e-07 2.40e-07 3.21e-07   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 1.04e-01 1.38e-01 1.11e-01 7.42e-02 3.95e-01 4.28e-01   ph/cm2/s
              Error -------- -------- -------- -------- 1.23e-01 --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.686    0.325    -      -           9.48e-04 1.97e-04   61.430 57
CPL   0.928    1.871      60.4  -10.3      2.56e-03 3.75e-02   60.700 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.338    0.511    -      -           3.35e-03 1.03e-03   57.270 57
CPL   0.553    1.377      94.0    0.0      8.26e-03 6.22e-02   56.670 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   29.376   -1.144   28.232
T90    23.744   -0.312   23.432
T50     8.640    3.208   11.848
Peak    1.000    2.612    3.612

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  175.5150 +36.8518 0.0277   12.4  172.8       0.4604     7.0  TRIG_00633237       
------------------------------------------
 
Foreground time interval of the image:
 -1.144  28.232 (delta_t =  29.376 [sec])
Background time interval of the image:
-60.920  -1.144 (delta_t =  59.776 [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   -1.144 sec. to   28.232 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.68601     ( -0.315222   0.335433 )
Norm@50keV  : 9.47783E-04    ( -0.000200578   0.000194288 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.43 using 59 PHA bins.
# Reduced chi-squared =          1.078 for     57 degrees of freedom 
# Null hypothesis probability =   3.203450e-01
 
Photon flux (15-150 keV)    in 29.38 sec: 0.125267 ( -0.0224377  0.0224386 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.58115e-07 ( -5.6278e-08  5.84327e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.144 sec. to   28.232 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.927874     ( -2.4547   1.28792 )
Epeak [keV] : 60.3745      ( -39.8159 -60.4385 )
Norm@50keV  : 2.56172E-03    ( -0.00255326   0.0724444 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.70 using 59 PHA bins.
# Reduced chi-squared =          1.084 for     56 degrees of freedom 
# Null hypothesis probability =   3.102282e-01
 
Photon flux (15-150 keV)    in 29.38 sec: 0.121523 ( -0.0239207  0.023645 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.36288e-07 ( -6.70651e-08  7.17615e-08 ) ergs/cm2
 
Band function
Time interval is from   -1.144 sec. to   28.232 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.69374   ( -0.486064   -0.486064 )
beta        : -2.22594    ( 2.13569   0.641825 )
Epeak [keV] : 37.2124      ( -39.2539 25.0923 )
Norm@50keV   : 0.131020    ( -0.128867   8.53319 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.63 using 59 PHA bins.
# Reduced chi-squared =          1.084 for     55 degrees of freedom 
# Null hypothesis probability =   3.111955e-01
 
Photon flux (15-150 keV)    in 29.38 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.3968e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.0266  (-1.97215  2.60946)
R^2/D10^2   : 4.23851E-02  (-0.0230277   0.0450133)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.54 using 59 PHA bins.
# Reduced chi-squared =          1.115 for     57 degrees of freedom 
# Null hypothesis probability =   2.570904e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.165e-08   9.961e-09
25- 50  8.977e-08   2.619e-08
50-150  6.177e-08   2.640e-08
15-150  1.832e-07   5.942e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 122.614       (-61.8827      -121.317)
Norm        : 0.533105       (-0.107364     0.152674)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.83 using 59 PHA bins.
# Reduced chi-squared =          1.067 for     57 degrees of freedom 
# Null hypothesis probability =   3.399181e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.076e-08   2.352e-08
25- 50  7.319e-08   4.106e-08
50-150  1.320e-07   8.817e-08
15-150  2.459e-07   1.523e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.15075        (-1.14206      1.75671)
R1^2/D10^2  : 1.17374E+04        (-13711.2      -13713.9)
kT2 [keV]   : 11.9448        (-2.30717      2.40106)
R2^2/D10^2  : 3.03901E-02    (-0.0180789   0.0216987)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.25 using 59 PHA bins.
# Reduced chi-squared =          1.077 for     55 degrees of freedom 
# Null hypothesis probability =   3.232013e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.313e-08   1.306e-08
25- 50  8.431e-08   3.076e-08
50-150  7.210e-08   3.611e-08
15-150  1.895e-07   7.376e-08

Peak spectrum fit

Power-law model
Time interval is from    2.612 sec. to    3.612 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.33844     ( -0.508028   0.514621 )
Norm@50keV  : 3.34917E-03    ( -0.00103198   0.00102146 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.27 using 59 PHA bins.
# Reduced chi-squared =          1.005 for     57 degrees of freedom 
# Null hypothesis probability =   4.650101e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.402531 ( -0.12169  0.121898 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.27979e-08 ( -1.1095e-08  1.14982e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    2.612 sec. to    3.612 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.553473     ( -1.5243   1.23051 )
Epeak [keV] : 94.0031      ( -93.9571 -93.9571 )
Norm@50keV  : 8.25791E-03    ( -0.0082663   0.116201 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.67 using 59 PHA bins.
# Reduced chi-squared =          1.012 for     56 degrees of freedom 
# Null hypothesis probability =   4.498686e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.391939 ( -0.123396  0.063057 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.11883e-08 ( -1.15005e-08  1.20419e-08 ) ergs/cm2
 
Band function
Time interval is from    2.612 sec. to    3.612 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.602181   ( -0.881239   2.73254 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 97.9230      ( -50.399 -97.9178 )
Norm@50keV   : 7.75555E-03    ( -0.00775613   0.117078 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.67 using 59 PHA bins.
# Reduced chi-squared =          1.030 for     55 degrees of freedom 
# Null hypothesis probability =   4.124157e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.395091 ( 6.60491  -0.125229 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.04594e-15 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 17.3289  (-6.13977  8.87631)
R^2/D10^2   : 2.95281E-02  (-0.0294815   0.0982766)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.60 using 59 PHA bins.
# Reduced chi-squared =          1.028 for     57 degrees of freedom 
# Null hypothesis probability =   4.163983e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.796e-09   1.119e-09
25- 50  8.068e-09   4.789e-09
50-150  1.740e-08   1.159e-08
15-150  2.727e-08   1.688e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.361       (-123.216      -199.362)
Norm        : 1.65632       (-0.498006     0.498635)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.40 using 59 PHA bins.
# Reduced chi-squared =          1.007 for     57 degrees of freedom 
# Null hypothesis probability =   4.601578e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.124e-09   2.553e-09
25- 50  7.934e-09   4.851e-09
50-150  1.740e-08   1.066e-08
15-150  2.946e-08   1.840e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.74202        (-6.46389      13.5708)
R1^2/D10^2  : 0.398591        (-0.201822      -0.409355)
kT2 [keV]   : 25.1454        (-25.0962      -25.0964)
R2^2/D10^2  : 6.91681E-03    (-0.00696219   0.0416312)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.88 using 59 PHA bins.
# Reduced chi-squared =          1.016 for     55 degrees of freedom 
# Null hypothesis probability =   4.417513e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.552e-09   2.418e-09
25- 50  7.864e-09   4.358e-09
50-150  2.070e-08   1.344e-08
15-150  3.212e-08   1.763e-08
Plot creation:
Tue Mar  3 04:09:42 EST 2015