batgrbproduct Analysis for Trigger=643949

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jun 16 12:19:27 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger643949/GCN5_download_cron
======================================================================

  Trigger: 00643949      Segment: 000

  BAT Trigger Time: 456085912   [s; MET]
      Trigger Stop: 456086024   [s; MET]
               UTC: 2015-06-15T18:31:38.277460    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 306.020483155155   Dec: 33.8498788806203  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    11.73
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    11.73

  Flight Position:   [ source = BAT ]
    RA: 306.020483155155   Dec: 33.8498788806203  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 306.016375638005   Dec: 33.8565063459056  [deg; J2000]  
        { 20h 24m 03.9s , +33d 51' 23.4" }
         +/- 1.83803989783996 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.06233930249378 [arcmin] (formal 1-sigma fit error)
    SNR: 12.74877551251
 
  Angular difference between Flight and Ground position is 0.447229 arcmin
 
  Partial Coding Fraction: 0.6015625    [ including projection effects ]

  Duration
     T90: 1025.97199994326 +/- 25.8123275845483
        Measured from: -85.7999998927116
                   to: 940.172000050545     [s; relative to TRIGTIME]
     T50: 876.243999958038 +/- 48.0687827109929
        Measured from: -23.2999998927116
                   to: 852.944000065327     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 58.1520000100136     
                   to: 59.1520000100136     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -100.055999994278     
                   to: 953.763999998569     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     4.385333   6.761879   4.633903   1.132075
           0.205458   0.210969   0.183646   0.164508 [error]
 Peak      0.027247   0.019306   0.029501   0.008406
           0.008084   0.008401   0.006958   0.006443 [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 1.45e-06 2.63e-06 3.66e-06 1.06e-05 1.05e-05 1.84e-05   erg/cm2
              Error 1.03e-07 1.10e-07 1.86e-07 1.20e-06 4.46e-07 1.32e-06   erg/cm2
Peak flux Power-law 1.98e-01 2.09e-01 1.56e-01 1.88e-01 6.35e-01 7.50e-01   ph/cm2/s
              Error 9.94e-02 6.58e-02 5.66e-02 1.44e-01 1.87e-01 2.23e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.39e-06 2.69e-06 3.71e-06 7.15e-06 1.03e-05 1.49e-05   erg/cm2
              Error 1.23e-07 1.29e-07 1.97e-07 3.07e-06 5.17e-07 2.77e-06   erg/cm2
Peak flux Cutoff-PL 1.80e-01 2.18e-01 1.63e-01 1.10e-01 6.21e-01 6.71e-01   ph/cm2/s
              Error 1.50e-01 7.75e-02 6.57e-02 1.77e-01 1.96e-01 2.65e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   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    1.522    0.071    -      -           1.06e-03 4.12e-05   68.530 57
CPL   1.267    0.283     143.2  -45.9      1.42e-03 4.52e-04   65.990 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.424    0.519    -      -           5.18e-03 1.53e-03   48.370 57
CPL   0.978    2.475     116.0    0.0      8.63e-03 0.00e+00   48.200 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: 638.208000 sec.
T50 in the 50-300 keV band: 310.656000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100 1053.820 -100.056  953.764
T90  1025.970  -85.800  940.172
T50   876.244  -23.300  852.944
Peak    1.000   58.152   59.152

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  306.0164 +33.8565 0.0150   21.0  107.1       2.7429    12.7  TRIG_00643949       
------------------------------------------
 
Foreground time interval of the image:
-16.699 120.401 (delta_t = 137.100 [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 -100.056 sec. to  953.764 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.52216     ( -0.0711949   0.0712238 )
Norm@50keV  : 1.05582E-03    ( -4.12153e-05   4.11636e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.53 using 59 PHA bins.
# Reduced chi-squared =          1.202 for     57 degrees of freedom 
# Null hypothesis probability =   1.409705e-01
 
Photon flux (15-150 keV)    in 1054 sec: 0.132609 ( -0.00535265  0.0053624 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.05198e-05 ( -4.45202e-07  4.4691e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from -100.056 sec. to  953.764 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.26670     ( -0.293101   0.273293 )
Epeak [keV] : 143.187      ( -51.3879 -143.189 )
Norm@50keV  : 1.41831E-03    ( -0.000348815   0.000555875 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.99 using 59 PHA bins.
# Reduced chi-squared =          1.178 for     56 degrees of freedom 
# Null hypothesis probability =   1.696467e-01
 
Photon flux (15-150 keV)    in 1054 sec: 0.130575 ( -0.005758  0.005759 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.02807e-05 ( -5.19127e-07  5.15764e-07 ) ergs/cm2
 
Band function
Time interval is from -100.056 sec. to  953.764 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 2.42984   ( -4.41486   -3.85908 )
beta        : -1.63999    ( -0.104248   0.095798 )
Epeak [keV] : 30.6944      ( -3.92138 21.6634 )
Norm@50keV   : 0.652537    ( -0.652226   23.5888 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.53 using 59 PHA bins.
# Reduced chi-squared =          1.046 for     55 degrees of freedom 
# Null hypothesis probability =   3.816454e-01
 
Photon flux (15-150 keV)    in 1054 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.6823  (  )
R^2/D10^2   : 1.56233E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         201.37 using 59 PHA bins.
# Reduced chi-squared =         3.5328 for     57 degrees of freedom 
# Null hypothesis probability =   5.404778e-18
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.456e-07   5.818e-08
25- 50  2.904e-06   1.339e-07
50-150  4.219e-06   3.557e-07
15-150  7.869e-06   3.620e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 0.540208       (-0.0207216     0.0207138)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.44 using 59 PHA bins.
# Reduced chi-squared =          1.166 for     57 degrees of freedom 
# Null hypothesis probability =   1.837527e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.418e-06   5.744e-08
25- 50  2.728e-06   1.086e-07
50-150  5.983e-06   2.498e-07
15-150  1.013e-05   4.053e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.14399        (-0.987613      1.05341)
R1^2/D10^2  : 8.83231E-02        (-0.0277989      0.0450781)
kT2 [keV]   : 31.9104        (-5.65428      9.85197)
R2^2/D10^2  : 7.97663E-04    (-0.000455405   0.000775124)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.60 using 59 PHA bins.
# Reduced chi-squared =          1.102 for     55 degrees of freedom 
# Null hypothesis probability =   2.809877e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.260e-06   1.401e-07
25- 50  2.856e-06   2.735e-07
50-150  6.272e-06   1.474e-06
15-150  1.039e-05   1.541e-06

Peak spectrum fit

Power-law model
Time interval is from   58.152 sec. to   59.152 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.42437     ( -0.517485   0.51973 )
Norm@50keV  : 5.18116E-03    ( -0.0015422   0.0015195 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.37 using 59 PHA bins.
# Reduced chi-squared =         0.8486 for     57 degrees of freedom 
# Null hypothesis probability =   7.850932e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.634562 ( -0.186639  0.18738 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.98211e-08 ( -1.60487e-08  1.64803e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   58.152 sec. to   59.152 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.977816     ( -3.49565   1.45522 )
Epeak [keV] : 116.049      ( -142.977 -142.977 )
Norm@50keV  : 8.63287E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.20 using 59 PHA bins.
# Reduced chi-squared =         0.8608 for     56 degrees of freedom 
# Null hypothesis probability =   7.611774e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.621282 ( -0.197678  0.193877 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.82061e-08 ( -1.66962e-08  1.75799e-08 ) ergs/cm2
 
Band function
Time interval is from   58.152 sec. to   59.152 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.874696   ( 0.874287   3.65383 )
beta        : -2.22124    ( 2.04132   11.1612 )
Epeak [keV] : 101.728      ( -101.904 -101.904 )
Norm@50keV   : 9.86915E-03    ( -0.00510008   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.19 using 59 PHA bins.
# Reduced chi-squared =         0.8763 for     55 degrees of freedom 
# Null hypothesis probability =   7.302307e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.9454  (-4.82061  7.35424)
R^2/D10^2   : 4.89364E-02  (-0.0489364   0.10659)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.85 using 59 PHA bins.
# Reduced chi-squared =         0.8745 for     57 degrees of freedom 
# Null hypothesis probability =   7.379233e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.864e-09   1.798e-09
25- 50  1.264e-08   7.850e-09
50-150  2.589e-08   1.712e-08
15-150  4.140e-08   2.580e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-126.341      -199.363)
Norm        : 2.61903       (-0.756601     0.756649)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.44 using 59 PHA bins.
# Reduced chi-squared =         0.8498 for     57 degrees of freedom 
# Null hypothesis probability =   7.829882e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.522e-09   4.169e-09
25- 50  1.254e-08   7.580e-09
50-150  2.751e-08   1.675e-08
15-150  4.658e-08   2.876e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.82932        (-3.67154      13.5731)
R1^2/D10^2  : 5.88312        (-5.87766      -5.88657)
kT2 [keV]   : 20.0499        (-6.26283      177.859)
R2^2/D10^2  : 2.51286E-02    (-0.0250931   0.0564859)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.13 using 59 PHA bins.
# Reduced chi-squared =         0.8568 for     55 degrees of freedom 
# Null hypothesis probability =   7.659469e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.260e-09   3.683e-09
25- 50  1.108e-08   6.155e-09
50-150  2.895e-08   1.829e-08
15-150  4.629e-08   2.634e-08
Plot creation:
Tue Jun 16 12:23:53 EDT 2015