batgrbproduct Analysis for Trigger=644259

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jun 17 15:59:37 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger644259/GCN5_download_cron
======================================================================

  Trigger: 00644259      Segment: 000

  BAT Trigger Time: 456187772.992   [s; MET]
      Trigger Stop: 456187789.376   [s; MET]
               UTC: 2015-06-16T22:49:19.264160    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 314.704655959612   Dec: -53.3935296118629  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    12.26
     Image Trigger?:     NO
     Rate S/N Ratio:     16.9115345252878  [ if not an image trigger ]
     Image S/N Ratio:    12.26

  Flight Position:   [ source = BAT ]
    RA: 314.704655959612   Dec: -53.3935296118629  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 314.716832194222   Dec: -53.4042534709204  [deg; J2000]  
        { 20h 58m 52.0s , -53d 24' 15.3" }
         +/- 1.17303835255275 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.431717147280581 [arcmin] (formal 1-sigma fit error)
    SNR: 24.2159178583638
 
  Angular difference between Flight and Ground position is 0.777013 arcmin
 
  Partial Coding Fraction: 0.2929688    [ including projection effects ]

  Duration
     T90: 598.155999958515 +/- 98.0564572020143
        Measured from: -31.7199998497963
                   to: 566.436000108719     [s; relative to TRIGTIME]
     T50: 108.675999999046 +/- 11.5978756302025
        Measured from: 64.2880001068115
                   to: 172.964000105858     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 93.5839999914169     
                   to: 94.5839999914169     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -52.2919999957085     
                   to: 710.967999994755     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     8.520388  11.578429   8.474165   1.865983
           0.299596   0.288368   0.242561   0.201381 [error]
 Peak      0.101245   0.101170   0.107626   0.031837
           0.013964   0.013790   0.012156   0.009585 [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 3.16e-06 5.27e-06 6.68e-06 1.69e-05 1.98e-05 3.21e-05   erg/cm2
              Error 1.87e-07 1.81e-07 2.54e-07 1.45e-06 6.20e-07 1.59e-06   erg/cm2
Peak flux Power-law 9.86e-01 9.42e-01 6.27e-01 6.49e-01 2.82e+00 3.20e+00   ph/cm2/s
              Error 2.16e-01 1.28e-01 1.00e-01 2.11e-01 3.68e-01 4.02e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.98e-06 5.36e-06 6.82e-06 1.21e-05 1.95e-05 2.73e-05   erg/cm2
              Error 2.39e-07 1.99e-07 2.82e-07 3.55e-06 6.87e-07 3.59e-06   erg/cm2
Peak flux Cutoff-PL 9.43e-01 9.59e-01 6.42e-01 5.21e-01 2.79e+00 3.06e+00   ph/cm2/s
              Error 2.58e-01 1.42e-01 1.15e-01 3.40e-01 3.81e-01 5.11e-01   ph/cm2/s
 
Fluence        Band 2.87e-06 5.42e-06 6.69e-06 1.50e-05 1.95e-05 3.01e-05   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 9.39e-01 9.73e-01 6.49e-01 4.84e-01 2.81e+00 3.05e+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    1.657    0.057    -      -           2.80e-03 8.50e-05   43.230 57
CPL   1.404    0.230     126.3  236.1      3.68e-03 9.05e-04   39.500 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.588    0.219    -      -           2.20e-02 2.83e-03   58.500 57
CPL   1.375    0.663     156.3    0.0      2.79e-02 2.54e-02   58.290 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: 524.928000 sec.
T50 in the 50-300 keV band: 116.608000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  763.260  -52.292  710.968
T90   598.156  -31.720  566.436
T50   108.676   64.288  172.964
Peak    1.000   93.584   94.584

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  314.7168 -53.4043 0.0079   40.2 -123.2      25.5492    24.2  TRIG_00644259       
------------------------------------------
 
Foreground time interval of the image:
-52.292 132.298 (delta_t = 184.590 [sec])
133.008 196.228 (delta_t =  63.220 [sec])
197.008 492.809 (delta_t = 295.801 [sec])
Background time interval of the image:
-239.992 -52.292 (delta_t = 187.700 [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
Multiple GTIs in the spectrum
tstart tstop
-52.292000 132.298000
133.008000 196.228000
197.008000 710.968000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.65743     ( -0.0567095   0.05678 )
Norm@50keV  : 2.79972E-03    ( -8.49689e-05   8.49524e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.23 using 59 PHA bins.
# Reduced chi-squared =         0.7584 for     57 degrees of freedom 
# Null hypothesis probability =   9.111333e-01
 
Photon flux (15-150 keV)    in 761.8 sec: 0.366475 ( -0.0125783  0.0126303 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.98216e-05 ( -6.19744e-07  6.20388e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-52.292000 132.298000
133.008000 196.228000
197.008000 710.968000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40406     ( -0.236453   0.224358 )
Epeak [keV] : 126.308      ( -36.5172 435.655 )
Norm@50keV  : 3.67905E-03    ( -0.000771872   0.00103911 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.50 using 59 PHA bins.
# Reduced chi-squared =         0.7053 for     56 degrees of freedom 
# Null hypothesis probability =   9.536308e-01
 
Photon flux (15-150 keV)    in 761.8 sec: 0.359451 ( -0.013866  0.013937 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.94982e-05 ( -6.88743e-07  6.85696e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-52.292000 132.298000
133.008000 196.228000
197.008000 710.968000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.12387   ( -0.520747   2.917 )
beta        : -1.77751    ( 1.77849   0.12194 )
Epeak [keV] : 71.6325      ( -45.3339 205.589 )
Norm@50keV   : 5.39344E-03    ( -0.0022644   0.0421835 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.57 using 59 PHA bins.
# Reduced chi-squared =         0.7013 for     55 degrees of freedom 
# Null hypothesis probability =   9.546148e-01
 
Photon flux (15-150 keV)    in 761.8 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.9452e-05 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.3408  (  )
R^2/D10^2   : 3.54957E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         269.07 using 59 PHA bins.
# Reduced chi-squared =         4.7205 for     57 degrees of freedom 
# Null hypothesis probability =   2.852584e-29
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.327e-06   8.380e-08
25- 50  5.382e-06   2.213e-07
50-150  8.705e-06   4.571e-07
15-150  1.541e-05   5.447e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 165.983       (-23.6166      31.0082)
Norm        : 1.47759       (-0.0291534     0.0604871)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.23 using 59 PHA bins.
# Reduced chi-squared =         0.7058 for     57 degrees of freedom 
# Null hypothesis probability =   9.548375e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.864e-06   1.676e-07
25- 50  5.384e-06   3.497e-07
50-150  1.106e-05   2.663e-06
15-150  1.931e-05   2.811e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.57916        (-0.864181      0.908746)
R1^2/D10^2  : 0.299642        (-0.0940742      0.156853)
kT2 [keV]   : 27.0877        (-3.07522      4.29306)
R2^2/D10^2  : 3.52060E-03    (-0.00147477   0.00207437)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.89 using 59 PHA bins.
# Reduced chi-squared =         0.8708 for     55 degrees of freedom 
# Null hypothesis probability =   7.404613e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.598e-06   2.941e-07
25- 50  5.540e-06   3.782e-07
50-150  1.113e-05   1.135e-06
15-150  1.926e-05   1.432e-06

Peak spectrum fit

Power-law model
Time interval is from   93.584 sec. to   94.584 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58823     ( -0.217217   0.221648 )
Norm@50keV  : 2.20149E-02    ( -0.00283603   0.00281697 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.50 using 59 PHA bins.
# Reduced chi-squared =          1.026 for     57 degrees of freedom 
# Null hypothesis probability =   4.199617e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.81880 ( -0.367605  0.369113 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.06186e-07 ( -2.81679e-08  2.83511e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   93.584 sec. to   94.584 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.37540     ( -0.900522   0.425107 )
Epeak [keV] : 156.277      ( -156.196 -156.196 )
Norm@50keV  : 2.79094E-02    ( -0.00590662   0.0447949 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.29 using 59 PHA bins.
# Reduced chi-squared =          1.041 for     56 degrees of freedom 
# Null hypothesis probability =   3.910900e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.79197 ( -0.38171  0.38023 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.04376e-07 ( -2.921e-08  2.9158e-08 ) ergs/cm2
 
Band function
Time interval is from   93.584 sec. to   94.584 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.37699   ( 1.27837   0.818846 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 157.034      ( -90.4479 -157.034 )
Norm@50keV   : 2.78558E-02    ( -0.00851368   0.0448623 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.29 using 59 PHA bins.
# Reduced chi-squared =          1.060 for     55 degrees of freedom 
# Null hypothesis probability =   3.552833e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.80959 (    ) 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]    : 16.5613  (-2.44529  2.85)
R^2/D10^2   : 0.222016  (-0.0956447   0.167983)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.22 using 59 PHA bins.
# Reduced chi-squared =          1.320 for     57 degrees of freedom 
# Null hypothesis probability =   5.329880e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.249e-08   3.148e-09
25- 50  5.409e-08   1.083e-08
50-150  1.050e-07   2.663e-08
15-150  1.716e-07   2.825e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.256       (-88.9356      -199.256)
Norm        : 11.4354       (-1.42868     1.71193)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.40 using 59 PHA bins.
# Reduced chi-squared =          1.025 for     57 degrees of freedom 
# Null hypothesis probability =   4.236562e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.848e-08   1.609e-08
25- 50  5.478e-08   3.023e-08
50-150  1.201e-07   6.615e-08
15-150  2.034e-07   1.111e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.46629        (-1.23464      1.85148)
R1^2/D10^2  : 17.6042        (-13.6601      66.8348)
kT2 [keV]   : 21.7764        (-3.8837      5.83939)
R2^2/D10^2  : 7.45360E-02    (-0.0430222   0.0783651)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.81 using 59 PHA bins.
# Reduced chi-squared =         0.9965 for     55 degrees of freedom 
# Null hypothesis probability =   4.818693e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.322e-08   1.698e-08
25- 50  4.758e-08   1.614e-08
50-150  1.226e-07   4.723e-08
15-150  2.034e-07   6.081e-08
Plot creation:
Wed Jun 17 16:03:25 EDT 2015