batgrbproduct analysis for trigger=735331

batgrbproduct Analysis for Trigger=735331

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Jan 28 14:05:53 EST 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger735331/GCN5_download_cron
======================================================================

  Trigger: 00735331      Segment: 000

  BAT Trigger Time: 507222827.2   [s; MET]
      Trigger Stop: 507222827.328   [s; MET]
               UTC: 2017-01-27T15:13:28.675820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 19.9443848948679   Dec: -30.3376379347453  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.99
     Image Trigger?:     NO
     Rate S/N Ratio:     26.5141471671257  [ if not an image trigger ]
     Image S/N Ratio:    8.99

  Flight Position:   [ source = BAT ]
    RA: 19.9443848948679   Dec: -30.3376379347453  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 19.9967077172859   Dec: -30.3403194781098  [deg; J2000]  
        { 01h 19m 59.2s , -30d 20' 25.2" }
         +/- 1.93125552085353 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.864216162487812 [arcmin] (formal 1-sigma fit error)
    SNR: 11.8788909845844
 
  Angular difference between Flight and Ground position is 2.714212 arcmin
 
  Partial Coding Fraction: 0.75    [ including projection effects ]

  Duration
     T90: 0.512000024318695 +/- 0.144886159629968
        Measured from: 0.048000156879425
                   to: 0.56000018119812     [s; relative to TRIGTIME]
     T50: 0.25600004196167 +/- 0.0815843606584965
        Measured from: 0.080000102519989
                   to: 0.336000144481659     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.155999958515167     
                   to: 0.844000041484833     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0480000376701355     
                   to: 0.639999985694885     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.022756   0.043015   0.053892   0.022713
           0.005705   0.006559   0.006684   0.006466 [error]
 Peak      0.014426   0.049103   0.063202   0.016058
           0.007097   0.008283   0.008121   0.008007 [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 6.62e-09 1.78e-08 3.85e-08 2.17e-07 1.04e-07 2.80e-07   erg/cm2
              Error 1.95e-09 3.13e-09 6.13e-09 8.13e-08 1.65e-08 8.44e-08   erg/cm2
Peak flux Power-law 2.08e-01 3.19e-01 3.68e-01 8.14e-01 1.14e+00 1.71e+00   ph/cm2/s
              Error 7.06e-02 6.78e-02 6.28e-02 2.94e-01 1.89e-01 3.29e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.07e-09 1.83e-08 4.00e-08 1.32e-07 1.02e-07 1.97e-07   erg/cm2
              Error 2.07e-09 3.47e-09 7.32e-09 1.49e-07 1.76e-08 1.28e-07   erg/cm2
Peak flux Cutoff-PL 1.30e-01 3.44e-01 4.35e-01 2.21e-01 1.07e+00 1.13e+00   ph/cm2/s
              Error 8.17e-02 8.42e-02 8.31e-02 2.32e-01 1.97e-01 2.97e-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    0.886    0.254    -      -           1.55e-02 2.25e-03   48.500 57
CPL   0.520    0.802     230.3    0.0      2.27e-02 2.65e-02   48.040 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.795    0.272    -      -           9.89e-03 1.67e-03   63.430 57
CPL  -0.964    1.644      95.8   70.5      5.90e-02 1.76e-01   58.010 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: 0.512000 sec.
T50 in the 50-300 keV band: 0.320000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.592    0.048    0.640
T90     0.512    0.048    0.560
T50     0.256    0.080    0.336
Peak    1.000   -0.156    0.844

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   19.9967 -30.3403 0.0162   24.0  145.0       0.1541    11.9  TRIG_00735331       
------------------------------------------
 
Foreground time interval of the image:
  0.048   0.640 (delta_t =   0.592 [sec])
Background time interval of the image:
-239.200 -56.755 (delta_t = 182.445 [sec])
-55.200   0.048 (delta_t =  55.248 [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    0.048 sec. to    0.640 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.885728     ( -0.260314   0.248019 )
Norm@50keV  : 1.55159E-02    ( -0.00225663   0.00224449 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.50 using 59 PHA bins.
# Reduced chi-squared =         0.8508 for     57 degrees of freedom 
# Null hypothesis probability =   7.812457e-01
 
Photon flux (15-150 keV)    in 0.592 sec: 1.78074 ( -0.258055  0.25848 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.03658e-07 ( -1.64369e-08  1.66287e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.048 sec. to    0.640 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.520064     ( -1.11505   0.489251 )
Epeak [keV] : 230.288      ( -230.288 -230.288 )
Norm@50keV  : 2.26667E-02    ( -0.00904405   0.0440098 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.04 using 59 PHA bins.
# Reduced chi-squared =         0.8579 for     56 degrees of freedom 
# Null hypothesis probability =   7.664677e-01
 
Photon flux (15-150 keV)    in 0.592 sec: 1.75597 ( -0.2663  0.26566 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01584e-07 ( -1.77292e-08  1.75131e-08 ) ergs/cm2
 
Band function
Time interval is from    0.048 sec. to    0.640 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.26698   ( 0.752399   5.75238 )
beta        : -0.993215    ( 0.985387   0.329371 )
Epeak [keV] : 31.5672      ( -39.5479 191.675 )
Norm@50keV   : 87.8604    ( -87.9358   38.7189 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.15 using 59 PHA bins.
# Reduced chi-squared =         0.8574 for     55 degrees of freedom 
# Null hypothesis probability =   7.649978e-01
 
Photon flux (15-150 keV)    in 0.592 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]    : 23.6244  (-4.39602  5.92984)
R^2/D10^2   : 5.24100E-02  (-0.0254738   0.0460064)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.32 using 59 PHA bins.
# Reduced chi-squared =         0.9530 for     57 degrees of freedom 
# Null hypothesis probability =   5.761283e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.097e-09   1.042e-09
25- 50  1.705e-08   4.526e-09
50-150  7.100e-08   1.969e-08
15-150  9.115e-08   2.143e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-34.2263      -200)
Norm        : 6.91369       (-1.05772     1.05772)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.23 using 59 PHA bins.
# Reduced chi-squared =          1.162 for     57 degrees of freedom 
# Null hypothesis probability =   1.885362e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.019e-08   5.793e-09
25- 50  1.960e-08   1.092e-08
50-150  4.299e-08   2.399e-08
15-150  7.277e-08   4.106e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.05636        (-3.56184      6.44719)
R1^2/D10^2  : 0.704012        (-0.560275      3.8348)
kT2 [keV]   : 34.5759        (-10.4826      61.6545)
R2^2/D10^2  : 1.46466E-02    (-0.0137392   0.0304666)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.99 using 59 PHA bins.
# Reduced chi-squared =         0.8543 for     55 degrees of freedom 
# Null hypothesis probability =   7.704659e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.397e-09   3.579e-09
25- 50  1.835e-08   9.727e-09
50-150  7.827e-08   4.330e-08
15-150  1.030e-07   5.405e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.156 sec. to    0.844 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.794625     ( -0.281052   0.26365 )
Norm@50keV  : 9.88703E-03    ( -0.00168123   0.00166614 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.43 using 59 PHA bins.
# Reduced chi-squared =          1.113 for     57 degrees of freedom 
# Null hypothesis probability =   2.601158e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.13654 ( -0.189078  0.189698 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.15803e-07 ( -2.03324e-08  2.05659e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.156 sec. to    0.844 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.963519     ( -1.94256   1.34502 )
Epeak [keV] : 95.8316      ( -23.6234 117.427 )
Norm@50keV  : 5.89701E-02    ( -0.0589702   0.292346 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.01 using 59 PHA bins.
# Reduced chi-squared =          1.036 for     56 degrees of freedom 
# Null hypothesis probability =   4.012249e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.06574 ( -0.196338  0.19759 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.04725e-07 ( -2.20046e-08  2.2696e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.156 sec. to    0.844 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.963670   ( -0.783198   1.19869 )
beta        : -10.00000    ( 10   1.26217e-07 )
Epeak [keV] : 95.8171      ( -18.4631 117.996 )
Norm@50keV   : 5.89902E-02    ( -0.00936611   0.292434 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.01 using 59 PHA bins.
# Reduced chi-squared =          1.055 for     55 degrees of freedom 
# Null hypothesis probability =   3.650984e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.04785e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 22.7331  (-3.94955  5.40997)
R^2/D10^2   : 3.97885E-02  (-0.0190397   0.0323378)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.21 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     57 degrees of freedom 
# Null hypothesis probability =   4.304304e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.748e-09   1.194e-09
25- 50  2.020e-08   5.620e-09
50-150  7.799e-08   2.496e-08
15-150  1.019e-07   2.947e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-36.4487      -200)
Norm        : 4.32410       (-0.781821     0.781821)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.50 using 59 PHA bins.
# Reduced chi-squared =          1.447 for     57 degrees of freedom 
# Null hypothesis probability =   1.524968e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.077e-08   6.205e-09
25- 50  2.071e-08   1.185e-08
50-150  4.542e-08   2.617e-08
15-150  7.689e-08   4.423e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 11.2572        (-11.5861      -11.5861)
R1^2/D10^2  : 6.08287E-02        (-0.0604482      -0.0604482)
kT2 [keV]   : 25.6057        (-25.7075      -25.7075)
R2^2/D10^2  : 2.45743E-02    (-0.0243514   0.0458099)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.96 using 59 PHA bins.
# Reduced chi-squared =          1.054 for     55 degrees of freedom 
# Null hypothesis probability =   3.665896e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.381e-09   4.721e-09
25- 50  2.058e-08   2.158e-08
50-150  8.028e-08   7.825e-08
15-150  1.052e-07   1.412e-07
Plot creation:
Sat Jan 28 14:25:21 EST 2017