batgrbproduct Analysis for Trigger=682522

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Apr 13 01:27:43 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger682522/GCN5_download_cron
======================================================================

  Trigger: 00682522      Segment: 000

  BAT Trigger Time: 482127850.816   [s; MET]
      Trigger Stop: 482127851.84   [s; MET]
               UTC: 2016-04-12T04:23:54.702760    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 33.1066844471939   Dec: -67.6453927684835  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.8
     Image Trigger?:     NO
     Rate S/N Ratio:     11.5758369027902  [ if not an image trigger ]
     Image S/N Ratio:    6.8

  Flight Position:   [ source = BAT ]
    RA: 33.1066844471939   Dec: -67.6453927684835  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 33.0702728029074   Dec: -67.6394910686807  [deg; J2000]  
        { 02h 12m 16.9s , -67d 38' 22.2" }
         +/- 0.888318185443131 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.251585789283306 [arcmin] (formal 1-sigma fit error)
    SNR: 36.0239951708353
 
  Angular difference between Flight and Ground position is 0.903324 arcmin
 
  Partial Coding Fraction: 0.7578125    [ including projection effects ]

  Duration
     T90: 32.1759999394417 +/- 4.05306009256854
        Measured from: -1.38399988412857
                   to: 30.7920000553131     [s; relative to TRIGTIME]
     T50: 12.4559999704361 +/- 1.403977176171
        Measured from: 5.89200013875961
                   to: 18.3480001091957     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 14.4000000357628     
                   to: 15.4000000357628     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -4.3759999871254     
                   to: 40.1759999990463     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.179938   1.364674   0.714797   0.189267
           0.043324   0.045404   0.039421   0.035047 [error]
 Peak      0.068451   0.069535   0.047168   0.007329
           0.007265   0.007636   0.006620   0.005653 [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 3.87e-07 5.63e-07 6.11e-07 1.24e-06 1.94e-06 2.80e-06   erg/cm2
              Error 2.74e-08 2.40e-08 4.01e-08 1.71e-07 9.15e-08 2.05e-07   erg/cm2
Peak flux Power-law 6.66e-01 5.36e-01 2.92e-01 2.32e-01 1.60e+00 1.73e+00   ph/cm2/s
              Error 1.13e-01 6.20e-02 5.45e-02 8.29e-02 1.85e-01 2.03e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.78e-07 5.74e-07 6.10e-07 9.03e-07 1.90e-06 2.47e-06   erg/cm2
              Error 3.17e-08 3.03e-08 4.14e-08 4.29e-07 1.14e-07 4.32e-07   erg/cm2
Peak flux Cutoff-PL 6.26e-01 5.73e-01 2.94e-01 1.12e-01 1.57e+00 1.61e+00   ph/cm2/s
              Error 1.28e-01 8.24e-02 5.97e-02 1.39e-01 1.90e-01 2.36e-01   ph/cm2/s
 
Fluence        Band 3.57e-07 5.84e-07 5.94e-07 1.10e-06 1.89e-06 2.64e-06   erg/cm2
              Error 3.48e-08 3.23e-08 4.23e-08 -------- 9.72e-08 --------   erg/cm2
Peak flux      Band 6.61e-01 5.47e-01 2.85e-01 2.15e-01 1.59e+00 1.71e+00   ph/cm2/s
              Error -------- -------- -------- -------- 1.89e-01 --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.883    0.083    -      -           4.74e-03 2.24e-04   59.550 57
CPL   1.707    0.338      74.8  -23.8      5.91e-03 2.28e-03   58.710 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.880    0.213    -      -           1.12e-02 1.59e-03   71.360 57
CPL   1.305    0.888      52.8   -5.0      2.36e-02 3.71e-02   69.960 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: 26.368000 sec.
T50 in the 50-300 keV band: 10.560000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   44.552   -4.376   40.176
T90    32.176   -1.384   30.792
T50    12.456    5.892   18.348
Peak    1.000   14.400   15.400

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   33.0703 -67.6395 0.0053   25.4  151.1       2.2088    36.0  TRIG_00682522       
------------------------------------------
 
Foreground time interval of the image:
 -4.376  15.485 (delta_t =  19.861 [sec])
Background time interval of the image:
-239.816  -4.376 (delta_t = 235.440 [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   -4.376 sec. to   40.176 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.88341     ( -0.0824179   0.0833606 )
Norm@50keV  : 4.74175E-03    ( -0.000224358   0.00022279 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.55 using 59 PHA bins.
# Reduced chi-squared =          1.045 for     57 degrees of freedom 
# Null hypothesis probability =   3.831361e-01
 
Photon flux (15-150 keV)    in 44.55 sec: 0.675746 ( -0.0297796  0.0298406 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.94197e-06 ( -9.11796e-08  9.17235e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -4.376 sec. to   40.176 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.70702     ( -0.353139   0.321868 )
Epeak [keV] : 74.8454      ( -27.2642 -74.8709 )
Norm@50keV  : 5.90782E-03    ( -0.00134872   0.00320901 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.71 using 59 PHA bins.
# Reduced chi-squared =          1.048 for     56 degrees of freedom 
# Null hypothesis probability =   3.763839e-01
 
Photon flux (15-150 keV)    in 44.55 sec: 0.668201 ( -0.032741  0.032701 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.90483e-06 ( -1.14716e-07  1.14066e-07 ) ergs/cm2
 
Band function
Time interval is from   -4.376 sec. to   40.176 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 2.24688   ( -2.75611   -0.961601 )
beta        : -1.97786    ( -0.204458   0.111546 )
Epeak [keV] : 25.5739      ( -5.7079 23.9598 )
Norm@50keV   : 5.66692    ( -5.66692   320.896 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.99 using 59 PHA bins.
# Reduced chi-squared =         0.9635 for     55 degrees of freedom 
# Null hypothesis probability =   5.518025e-01
 
Photon flux (15-150 keV)    in 44.55 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.89284e-06 ( -1.89253e-06  -9.78051e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.1175  (  )
R^2/D10^2   : 0.202881  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         172.47 using 59 PHA bins.
# Reduced chi-squared =         3.0258 for     57 degrees of freedom 
# Null hypothesis probability =   1.529504e-13
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.339e-07   1.744e-08
25- 50  6.704e-07   3.252e-08
50-150  4.719e-07   4.836e-08
15-150  1.376e-06   7.150e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 86.9514       (-12.9194      16.8835)
Norm        : 3.04082       (-0.209826     0.231935)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.92 using 59 PHA bins.
# Reduced chi-squared =          1.086 for     57 degrees of freedom 
# Null hypothesis probability =   3.048638e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.530e-07   2.377e-08
25- 50  5.926e-07   2.829e-08
50-150  8.832e-07   2.248e-07
15-150  1.829e-06   1.377e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.48148        (-0.897181      0.899732)
R1^2/D10^2  : 0.726511        (-0.228056      0.390627)
kT2 [keV]   : 30.9660        (-7.57861      15.3869)
R2^2/D10^2  : 3.19896E-03    (-0.002185   0.00529601)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.10 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     55 degrees of freedom 
# Null hypothesis probability =   3.970954e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.312e-07   3.626e-08
25- 50  6.127e-07   6.014e-08
50-150  9.766e-07   3.508e-07
15-150  1.920e-06   4.063e-07

Peak spectrum fit

Power-law model
Time interval is from   14.400 sec. to   15.400 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.87954     ( -0.207054   0.219286 )
Norm@50keV  : 1.12343E-02    ( -0.00161023   0.00157024 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.36 using 59 PHA bins.
# Reduced chi-squared =          1.252 for     57 degrees of freedom 
# Null hypothesis probability =   9.559194e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.59841 ( -0.185215  0.185242 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.03276e-07 ( -1.44393e-08  1.47495e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   14.400 sec. to   15.400 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.30540     ( -0.977353   0.798422 )
Epeak [keV] : 52.8051      ( -42.7552 -52.8051 )
Norm@50keV  : 2.36423E-02    ( -0.0148637   0.0592757 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.96 using 59 PHA bins.
# Reduced chi-squared =          1.249 for     56 degrees of freedom 
# Null hypothesis probability =   9.944759e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.56707 ( -0.19033  0.19035 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.8136e-08 ( -1.55784e-08  1.6377e-08 ) ergs/cm2
 
Band function
Time interval is from   14.400 sec. to   15.400 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.30525   ( 1.36237   0.767876 )
beta        : -9.99994    ( 9.99979   19.9998 )
Epeak [keV] : 52.7878      ( -37.0071 -52.7878 )
Norm@50keV   : 2.36450E-02    ( -0.0135168   0.0579898 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.96 using 59 PHA bins.
# Reduced chi-squared =          1.272 for     55 degrees of freedom 
# Null hypothesis probability =   8.434513e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.59213 ( 5.40787  -0.18927 ) 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]    : 11.1825  (-1.52983  1.75927)
R^2/D10^2   : 0.497951  (-0.208519   0.362248)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          85.52 using 59 PHA bins.
# Reduced chi-squared =          1.500 for     57 degrees of freedom 
# Null hypothesis probability =   8.592700e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.305e-08   2.390e-09
25- 50  3.769e-08   6.200e-09
50-150  2.695e-08   7.730e-09
15-150  7.769e-08   1.215e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 83.1069       (-26.5128      51.0208)
Norm        : 7.44764       (-1.1875     1.48115)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.99 using 59 PHA bins.
# Reduced chi-squared =          1.228 for     57 degrees of freedom 
# Null hypothesis probability =   1.158255e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.937e-08   3.225e-09
25- 50  3.217e-08   4.215e-09
50-150  4.658e-08   2.335e-08
15-150  9.812e-08   2.499e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.37433        (-1.53684      2.19945)
R1^2/D10^2  : 10.5403        (-8.29674      30.1885)
kT2 [keV]   : 16.1753        (-3.33691      5.94991)
R2^2/D10^2  : 0.103121    (-0.0750551   0.1007)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.98 using 59 PHA bins.
# Reduced chi-squared =          1.254 for     55 degrees of freedom 
# Null hypothesis probability =   9.737815e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.011e-08   9.370e-09
25- 50  3.037e-08   1.241e-08
50-150  4.354e-08   2.239e-08
15-150  9.401e-08   4.014e-08
Plot creation:
Wed Apr 13 01:32:21 EDT 2016