batgrbproduct analysis for trigger=760835

batgrbproduct Analysis for Trigger=760835

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jul  9 00:15:44 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger760835/GCN5_download_cron
======================================================================

  Trigger: 00760835      Segment: 000

  BAT Trigger Time: 521174064   [s; MET]
      Trigger Stop: 521174760   [s; MET]
               UTC: 2017-07-08T02:34:04.665000    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 259.916172690703   Dec: -25.0266022608835  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    10.98
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    10.98

  Flight Position:   [ source = BAT ]
    RA: 259.916172690703   Dec: -25.0266022608835  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 259.872040235476   Dec: -25.0000494121091  [deg; J2000]  
        { 17h 19m 29.3s , -25d 00' 00.2" }
         +/- 2.55907191806202 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.23646064096833 [arcmin] (formal 1-sigma fit error)
    SNR: 7.94590544433649
 
  Angular difference between Flight and Ground position is 2.880321 arcmin
 
  Partial Coding Fraction: 0.78125    [ including projection effects ]

  Duration
     T90: 696 +/- 
        Measured from: 0
                   to: 696     [s; relative to TRIGTIME]
     T50: 696 +/- 
        Measured from: 0
                   to: 696     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 696 second)
        Measured from: 0     
                   to: 696     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 696     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.751091   1.769174   0.902628   0.030033
           0.180003   0.165687   0.141475   0.126129 [error]
 Peak      1.751091   1.769174   0.902628   0.030033
           0.180003   0.165687   0.141475   0.126129 [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 5.15e-07 7.16e-07 7.37e-07 1.39e-06 2.41e-06 3.36e-06   erg/cm2
              Error 7.96e-08 7.61e-08 1.34e-07 5.06e-07 3.08e-07 6.48e-07   erg/cm2
Peak flux Power-law 2.66e-02 2.04e-02 1.05e-02 7.79e-03 6.11e-02 6.53e-02   ph/cm2/s
              Error 4.19e-03 2.16e-03 1.85e-03 2.64e-03 6.50e-03 6.97e-03   ph/cm2/s
 
Fluence   Cutoff-PL 4.94e-07 7.60e-07 7.13e-07 5.55e-07 2.27e-06 2.52e-06   erg/cm2
              Error 8.71e-08 1.02e-07 1.57e-07 6.45e-07 3.68e-07 9.54e-07   erg/cm2
Peak flux Cutoff-PL 2.53e-02 2.16e-02 1.03e-02 3.74e-03 5.97e-02 6.10e-02   ph/cm2/s
              Error 4.64e-03 2.86e-03 2.10e-03 4.93e-03 6.81e-03 8.50e-03   ph/cm2/s
 
Fluence        Band 5.01e-07 7.55e-07 6.92e-07 1.11e-06 2.34e-06 3.08e-06   erg/cm2
              Error -------- 9.09e-08 -------- -------- -------- --------   erg/cm2
Peak flux      Band 2.54e-02 2.15e-02 1.04e-02 4.13e-03 5.99e-02 6.14e-02   ph/cm2/s
              Error 4.53e-03 -------- -------- -------- 6.81e-03 --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.958    0.203    -      -           4.15e-04 5.47e-05   63.800 57
CPL   1.453    0.869      44.3    0.0      8.18e-04 0.00e+00   62.590 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.958    0.203    -      -           4.15e-04 5.47e-05   63.800 57
CPL   1.453    0.869      44.3   -1.8      8.18e-04 1.38e-03   62.590 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  696.000    0.000  696.000
T90   696.000    0.000  696.000
T50   696.000    0.000  696.000
Peak  696.000    0.000  696.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  259.8720 -25.0000 0.0242   17.9   58.9       4.7647     7.9  TRIG_00760835       
------------------------------------------
 
Foreground time interval of the image:
  0.000  32.000 (delta_t =  32.000 [sec])
 60.000 122.000 (delta_t =  62.000 [sec])
159.000 696.000 (delta_t = 537.000 [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
Multiple GTIs in the spectrum
tstart tstop
0.000000 32.000000
60.000000 122.000000
159.000000 696.000000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.95824     ( -0.198563   0.207387 )
Norm@50keV  : 4.14838E-04    ( -5.52853e-05   5.41247e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.80 using 59 PHA bins.
# Reduced chi-squared =          1.119 for     57 degrees of freedom 
# Null hypothesis probability =   2.499403e-01
 
Photon flux (15-150 keV)    in 631 sec: 6.10609E-02 ( -0.00650256  0.00650558 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.40956e-06 ( -3.04108e-07  3.1135e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 32.000000
60.000000 122.000000
159.000000 696.000000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.45306     ( -0.976852   0.760936 )
Epeak [keV] : 44.3151      (   )
Norm@50keV  : 8.18088E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.59 using 59 PHA bins.
# Reduced chi-squared =          1.118 for     56 degrees of freedom 
# Null hypothesis probability =   2.537914e-01
 
Photon flux (15-150 keV)    in 631 sec: 5.97128E-02 ( -0.0068143  0.0068144 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.26814e-06 ( -3.58793e-07  3.7677e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 32.000000
60.000000 122.000000
159.000000 696.000000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.45309   ( -3.78074   0.981353 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 44.3080      ( -17.272 -44.308 )
Norm@50keV   : 8.17909E-04    ( -0.000439054   0.00226665 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.59 using 59 PHA bins.
# Reduced chi-squared =          1.138 for     55 degrees of freedom 
# Null hypothesis probability =   2.247971e-01
 
Photon flux (15-150 keV)    in 631 sec: 5.98849E-02 ( 6.94012  -0.0069866 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.33957e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.71343  (-1.19806  1.40232)
R^2/D10^2   : 3.13075E-02  (-0.0127162   0.020943)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.53 using 59 PHA bins.
# Reduced chi-squared =          1.378 for     57 degrees of freedom 
# Null hypothesis probability =   3.087933e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.756e-07   6.878e-08
25- 50  8.957e-07   1.230e-07
50-150  4.295e-07   1.340e-07
15-150  1.701e-06   2.549e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 68.9239       (-20.2287      35.4781)
Norm        : 0.301059       (-0.0498735     0.060211)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.63 using 59 PHA bins.
# Reduced chi-squared =          1.099 for     57 degrees of freedom 
# Null hypothesis probability =   2.834634e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.866e-07   7.051e-08
25- 50  7.709e-07   9.844e-08
50-150  9.787e-07   3.301e-07
15-150  2.236e-06   3.370e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.27142        (-2.2538      2.41834)
R1^2/D10^2  : 0.203267        (-0.0793402      0.322243)
kT2 [keV]   : 16.4028        (-7.4193      21.9034)
R2^2/D10^2  : 2.85983E-03    (-0.000959163   0.00508259)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.26 using 59 PHA bins.
# Reduced chi-squared =          1.150 for     55 degrees of freedom 
# Null hypothesis probability =   2.077567e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.834e-07   2.770e-07
25- 50  7.137e-07   3.821e-07
50-150  8.289e-07   4.934e-07
15-150  2.026e-06   1.098e-06

Peak spectrum fit

Power-law model
Time interval is from  159.000 sec. to  696.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.95824     ( -0.198563   0.207387 )
Norm@50keV  : 4.14838E-04    ( -5.52853e-05   5.41247e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.80 using 59 PHA bins.
# Reduced chi-squared =          1.119 for     57 degrees of freedom 
# Null hypothesis probability =   2.499403e-01
 
Photon flux (15-150 keV)    in 631 sec: 6.10609E-02 ( -0.00650256  0.00650558 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.40956e-06 ( -3.04108e-07  3.1135e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  159.000 sec. to  696.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.45306     ( -0.976852   0.760936 )
Epeak [keV] : 44.3151      ( -40.6939 -44.3153 )
Norm@50keV  : 8.18088E-04    ( -0.00050079   0.00226411 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.59 using 59 PHA bins.
# Reduced chi-squared =          1.118 for     56 degrees of freedom 
# Null hypothesis probability =   2.537914e-01
 
Photon flux (15-150 keV)    in 631 sec: 5.97128E-02 ( -0.0068143  0.0068144 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.26814e-06 ( -3.58793e-07  3.7677e-07 ) ergs/cm2
 
Band function
Time interval is from  159.000 sec. to  696.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.45309   ( -3.78074   0.981353 )
beta        : -10.0000    ( 10   0 )
Epeak [keV] : 44.3080      ( -17.1474 -44.308 )
Norm@50keV   : 8.17909E-04    ( -0.000439054   0.00226665 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.59 using 59 PHA bins.
# Reduced chi-squared =          1.138 for     55 degrees of freedom 
# Null hypothesis probability =   2.247971e-01
 
Photon flux (15-150 keV)    in 631 sec: 5.98849E-02 ( 6.94012  -0.0069866 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.33957e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.71343  (-1.19806  1.40232)
R^2/D10^2   : 3.13075E-02  (-0.0127162   0.020943)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.53 using 59 PHA bins.
# Reduced chi-squared =          1.378 for     57 degrees of freedom 
# Null hypothesis probability =   3.087933e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.756e-07   7.238e-08
25- 50  8.957e-07   1.205e-07
50-150  4.295e-07   1.200e-07
15-150  1.701e-06   2.590e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 68.9239       (-20.2287      35.4781)
Norm        : 0.301059       (-0.0498735     0.060211)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.63 using 59 PHA bins.
# Reduced chi-squared =          1.099 for     57 degrees of freedom 
# Null hypothesis probability =   2.834634e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.866e-07   7.203e-08
25- 50  7.709e-07   1.013e-07
50-150  9.787e-07   2.999e-07
15-150  2.236e-06   3.373e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.27142        (-2.2538      2.41834)
R1^2/D10^2  : 0.203267        (-0.0793402      0.322243)
kT2 [keV]   : 16.4028        (-7.4193      21.9034)
R2^2/D10^2  : 2.85983E-03    (-0.000959163   0.00508259)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.26 using 59 PHA bins.
# Reduced chi-squared =          1.150 for     55 degrees of freedom 
# Null hypothesis probability =   2.077567e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.834e-07   2.758e-07
25- 50  7.137e-07   3.919e-07
50-150  8.289e-07   4.953e-07
15-150  2.026e-06   1.077e-06
Plot creation:
Sun Jul  9 00:24:18 EDT 2017