batgrbproduct analysis for trigger=933515

batgrbproduct Analysis for Trigger=933515

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Nov  7 16:38:37 EST 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger933515/GCN5_download_cron
======================================================================

  Trigger: 00933515      Segment: 000

  BAT Trigger Time: 594742547.776   [s; MET]
      Trigger Stop: 594742548.288   [s; MET]
               UTC: 2019-11-06T14:15:23.900640    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 269.349636887849   Dec: 46.0518248196464  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.85
     Image Trigger?:     NO
     Rate S/N Ratio:     20.5669638012031  [ if not an image trigger ]
     Image S/N Ratio:    7.85

  Flight Position:   [ source = BAT ]
    RA: 269.349636887849   Dec: 46.0518248196464  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 269.357953427051   Dec: 46.0475077075288  [deg; J2000]  
        { 17h 57m 25.9s , +46d 02' 51.0" }
         +/- 1.63589864800652 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.764682942120642 [arcmin] (formal 1-sigma fit error)
    SNR: 15.0574733635569
 
  Angular difference between Flight and Ground position is 0.432471 arcmin
 
  Partial Coding Fraction: 0.953125    [ including projection effects ]

  Duration
     T90: 3.41599988937378 +/- 0.347355618765658
        Measured from: -1.23199987411499
                   to: 2.18400001525879     [s; relative to TRIGTIME]
     T50: 1.63599991798401 +/- 0.610534272533938
        Measured from: 0.00800013542175293
                   to: 1.64400005340576     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0240000486373901     
                   to: 0.97599995136261     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.30799996852875     
                   to: 2.37999999523163     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.056194   0.154821   0.155162   0.051023
           0.013675   0.014528   0.013266   0.011265 [error]
 Peak      0.019545   0.055613   0.051903   0.025220
           0.007080   0.007875   0.007265   0.005945 [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 2.03e-08 5.42e-08 1.17e-07 6.54e-07 3.15e-07 8.46e-07   erg/cm2
              Error 4.28e-09 6.77e-09 1.22e-08 1.62e-07 3.28e-08 1.67e-07   erg/cm2
Peak flux Power-law 2.00e-01 3.11e-01 3.64e-01 8.21e-01 1.12e+00 1.70e+00   ph/cm2/s
              Error 6.97e-02 6.55e-02 5.49e-02 2.86e-01 1.71e-01 2.96e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.87e-08 5.55e-08 1.21e-07 4.21e-07 3.09e-07 6.16e-07   erg/cm2
              Error 5.27e-09 7.43e-09 1.47e-08 2.59e-07 3.54e-08 2.06e-07   erg/cm2
Peak flux Cutoff-PL 2.00e-01 3.11e-01 3.64e-01 8.14e-01 1.12e+00 1.69e+00   ph/cm2/s
              Error 7.73e-02 6.66e-02 6.24e-02 -------- 1.72e-01 4.17e-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    0.893    0.175    -      -           7.59e-03 7.57e-04   42.180 57
CPL   0.565    0.588     251.0    0.0      1.06e-02 7.74e-03   41.490 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.774    0.278    -      -           9.70e-03 1.53e-03   42.650 57
CPL   0.768    0.280    9999.4    0.0      9.77e-03 9.47e-03   42.650 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: 3.328000 sec.
T50 in the 50-300 keV band: 1.792000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    3.688   -1.308    2.380
T90     3.416   -1.232    2.184
T50     1.636    0.008    1.644
Peak    1.000   -0.024    0.976

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  269.3580 +46.0475 0.0127   15.4   42.2       0.4137    15.1  TRIG_00933515       
------------------------------------------
 
Foreground time interval of the image:
 -1.308   2.380 (delta_t =   3.688 [sec])
Background time interval of the image:
-239.776  -1.308 (delta_t = 238.468 [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   -1.308 sec. to    2.380 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.893108     ( -0.17843   0.171295 )
Norm@50keV  : 7.58657E-03    ( -0.000759627   0.000753978 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.18 using 59 PHA bins.
# Reduced chi-squared =         0.7401 for     57 degrees of freedom 
# Null hypothesis probability =   9.287034e-01
 
Photon flux (15-150 keV)    in 3.688 sec: 0.870724 ( -0.0868938  0.0871528 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.1485e-07 ( -3.27058e-08  3.2889e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -1.308 sec. to    2.380 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.564954     ( -0.767709   0.408714 )
Epeak [keV] : 251.010      ( -251.024 -251.024 )
Norm@50keV  : 1.06179E-02    ( -0.00361572   0.0118613 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.49 using 59 PHA bins.
# Reduced chi-squared =         0.7409 for     56 degrees of freedom 
# Null hypothesis probability =   9.260499e-01
 
Photon flux (15-150 keV)    in 3.688 sec: 0.858824 ( -0.09027  0.090311 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.09215e-07 ( -3.57164e-08  3.50611e-08 ) ergs/cm2
 
Band function
Time interval is from   -1.308 sec. to    2.380 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99999   ( -1.35804e-05   -4.99999 )
beta        : -1.09852    ( -0.278341   0.23071 )
Epeak [keV] : 37.6579      ( -11.4212 7.24128 )
Norm@50keV   : 48.0795    ( -4.58335   310.816 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.65 using 59 PHA bins.
# Reduced chi-squared =         0.7027 for     55 degrees of freedom 
# Null hypothesis probability =   9.537456e-01
 
Photon flux (15-150 keV)    in 3.688 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]    : 23.1555  (-3.07284  3.80477)
R^2/D10^2   : 2.69655E-02  (-0.0100032   0.0150618)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.91 using 59 PHA bins.
# Reduced chi-squared =         0.9634 for     57 degrees of freedom 
# Null hypothesis probability =   5.538354e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.632e-09   1.934e-09
25- 50  5.245e-08   8.464e-09
50-150  2.100e-07   3.622e-08
15-150  2.721e-07   3.847e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-17.1234      -200)
Norm        : 3.51722       (-0.36173     0.36173)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.42 using 59 PHA bins.
# Reduced chi-squared =          1.411 for     57 degrees of freedom 
# Null hypothesis probability =   2.223379e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.231e-08   1.785e-08
25- 50  6.215e-08   3.391e-08
50-150  1.363e-07   7.417e-08
15-150  2.308e-07   1.261e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 12.0444        (-3.95024      4.58375)
R1^2/D10^2  : 0.132954        (-0.072499      0.132734)
kT2 [keV]   : 60.6829        (-29.3099      -60.6829)
R2^2/D10^2  : 1.39674E-03    (-0.00132323   0.00771188)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.94 using 59 PHA bins.
# Reduced chi-squared =         0.7081 for     55 degrees of freedom 
# Null hypothesis probability =   9.501885e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.682e-08   8.759e-09
25- 50  6.091e-08   2.992e-08
50-150  2.349e-07   1.201e-07
15-150  3.126e-07   1.531e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.024 sec. to    0.976 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.773767     ( -0.28876   0.266805 )
Norm@50keV  : 9.69717E-03    ( -0.00154806   0.00151256 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.65 using 59 PHA bins.
# Reduced chi-squared =         0.7482 for     57 degrees of freedom 
# Null hypothesis probability =   9.212506e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.11571 ( -0.170243  0.171339 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.1459e-07 ( -1.79198e-08  1.80372e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.024 sec. to    0.976 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.767912     ( -0.292368   0.268277 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 9.77078E-03    ( -0.00145645   0.0174903 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.65 using 59 PHA bins.
# Reduced chi-squared =         0.7615 for     56 degrees of freedom 
# Null hypothesis probability =   9.056571e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.11563 ( -0.172974  0.17007 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14606e-07 ( -1.87234e-08  1.8008e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.024 sec. to    0.976 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.863933   ( 0.863899   0.863899 )
beta        : -0.773769    ( -0.266372   0.289011 )
Epeak [keV] : 14.8135      ( -14.8136 -14.8136 )
Norm@50keV   : 1.41335E-02    ( -0.00591582   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.65 using 59 PHA bins.
# Reduced chi-squared =         0.7754 for     55 degrees of freedom 
# Null hypothesis probability =   8.878142e-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]    : 26.3236  (-5.72353  8.48378)
R^2/D10^2   : 2.39533E-02  (-0.0130986   0.0260914)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.71 using 59 PHA bins.
# Reduced chi-squared =         0.8897 for     57 degrees of freedom 
# Null hypothesis probability =   7.085578e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.804e-09   9.725e-10
25- 50  1.632e-08   4.604e-09
50-150  8.308e-08   2.494e-08
15-150  1.022e-07   2.790e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-32.3343      -200)
Norm        : 4.42348       (-0.710345     0.710345)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.03 using 59 PHA bins.
# Reduced chi-squared =          1.141 for     57 degrees of freedom 
# Null hypothesis probability =   2.174404e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.101e-08   6.330e-09
25- 50  2.118e-08   1.196e-08
50-150  4.645e-08   2.664e-08
15-150  7.864e-08   4.420e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 11.2628        (-4.30498      6.04392)
R1^2/D10^2  : 0.195421        (-0.118662      0.398827)
kT2 [keV]   : 63.0339        (-79.4103      -87.1678)
R2^2/D10^2  : 1.82976E-03    (-0.000791511   0.0108692)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.62 using 59 PHA bins.
# Reduced chi-squared =         0.7385 for     55 degrees of freedom 
# Null hypothesis probability =   9.261775e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.861e-09   3.514e-09
25- 50  2.015e-08   1.107e-08
50-150  8.552e-08   4.775e-08
15-150  1.115e-07   5.760e-08
Plot creation:
Thu Nov  7 16:42:41 EST 2019