batgrbproduct analysis for trigger=737438

batgrbproduct Analysis for Trigger=737438

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Feb  9 18:54:41 EST 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger737438/GCN5_download_cron
======================================================================

  Trigger: 00737438      Segment: 000

  BAT Trigger Time: 508270294.912   [s; MET]
      Trigger Stop: 508270295.424   [s; MET]
               UTC: 2017-02-08T18:11:16.327540    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 166.562700100311   Dec: -46.779089937229  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.1
     Image Trigger?:     NO
     Rate S/N Ratio:     30  [ if not an image trigger ]
     Image S/N Ratio:    10.1

  Flight Position:   [ source = BAT ]
    RA: 166.562700100311   Dec: -46.779089937229  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 166.543993923524   Dec: -46.7857173882458  [deg; J2000]  
        { 11h 06m 10.6s , -46d 47' 08.6" }
         +/- 1.38795000283972 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.597981083271537 [arcmin] (formal 1-sigma fit error)
    SNR: 19.0426421206809
 
  Angular difference between Flight and Ground position is 0.865343 arcmin
 
  Partial Coding Fraction: 0.1796875    [ including projection effects ]

  Duration
     T90: 7.44799995422363 +/- 0.543293661245789
        Measured from: 0.0880001187324524
                   to: 7.53600007295609     [s; relative to TRIGTIME]
     T50: 4.97599995136261 +/- 1.08424345603377
        Measured from: 0.628000140190125
                   to: 5.60400009155273     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0360000133514404     
                   to: 0.96399998664856     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0360000133514404     
                   to: 8.06000000238419     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.248685   0.604223   0.732012   0.289649
           0.047051   0.051845   0.047477   0.038076 [error]
 Peak      0.082178   0.180143   0.274105   0.096272
           0.017909   0.021793   0.022093   0.016868 [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 1.19e-07 2.92e-07 5.69e-07 2.74e-06 1.54e-06 3.72e-06   erg/cm2
              Error 2.10e-08 3.13e-08 4.37e-08 4.77e-07 1.17e-07 4.86e-07   erg/cm2
Peak flux Power-law 1.22e+00 1.64e+00 1.61e+00 2.84e+00 5.40e+00 7.31e+00   ph/cm2/s
              Error 2.69e-01 2.26e-01 1.68e-01 6.08e-01 6.02e-01 7.66e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.07e-07 2.96e-07 5.97e-07 1.86e-06 1.53e-06 2.86e-06   erg/cm2
              Error 2.66e-08 3.33e-08 5.96e-08 8.97e-07 1.18e-07 9.48e-07   erg/cm2
Peak flux Cutoff-PL 9.11e-01 1.66e+00 1.82e+00 1.55e+00 5.22e+00 5.94e+00   ph/cm2/s
              Error 3.47e-01 2.52e-01 2.47e-01 8.35e-01 6.17e-01 1.06e+00   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 9.30e-01 1.66e+00 1.81e+00 1.59e+00 5.25e+00 5.99e+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    1.036    0.134    -      -           1.78e-02 1.48e-03   87.980 57
CPL   0.678    0.504     231.4  -62.4      2.49e-02 1.29e-02   86.680 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.023    0.170    -      -           4.68e-02 5.05e-03   71.190 57
CPL   0.123    0.861     132.1  196.6      1.08e-01 9.63e-02   67.190 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: 7.616000 sec.
T50 in the 50-300 keV band: 5.248000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    8.096   -0.036    8.060
T90     7.448    0.088    7.536
T50     4.976    0.628    5.604
Peak    1.000   -0.036    0.964

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  166.5440 -46.7857 0.0101   53.2  -20.1       1.9980    19.0  TRIG_00737438       
------------------------------------------
 
Foreground time interval of the image:
 -0.036   8.060 (delta_t =   8.096 [sec])
Background time interval of the image:
-239.912 -56.905 (delta_t = 183.007 [sec])
-55.912  -0.036 (delta_t =  55.876 [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   -0.036 sec. to    8.060 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.03594     ( -0.136209   0.131039 )
Norm@50keV  : 1.77901E-02    ( -0.0014915   0.0014726 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          87.98 using 59 PHA bins.
# Reduced chi-squared =          1.544 for     57 degrees of freedom 
# Null hypothesis probability =   5.264961e-03
 
Photon flux (15-150 keV)    in 8.096 sec: 2.05261 ( -0.178975  0.180339 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.5381e-06 ( -1.16685e-07  1.16667e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.036 sec. to    8.060 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.678257     ( -0.595144   0.413648 )
Epeak [keV] : 231.405      ( -106.536 -231.412 )
Norm@50keV  : 2.49324E-02    ( -0.00808401   0.0177503 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          86.68 using 59 PHA bins.
# Reduced chi-squared =          1.548 for     56 degrees of freedom 
# Null hypothesis probability =   5.335365e-03
 
Photon flux (15-150 keV)    in 8.096 sec: 2.02249 ( -0.18301  0.1851 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.53113e-06 ( -1.18461e-07  1.1804e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.036 sec. to    8.060 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.960039   ( -1.52171   -0.55111 )
beta        : -1.25449    ( -0.292084   0.230369 )
Epeak [keV] : 64.7273      ( -25.0348 129.893 )
Norm@50keV   : 0.197535    ( -0.210755   26.3815 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          83.71 using 59 PHA bins.
# Reduced chi-squared =          1.522 for     55 degrees of freedom 
# Null hypothesis probability =   7.553769e-03
 
Photon flux (15-150 keV)    in 8.096 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]    : 23.7428  (-2.31748  2.74236)
R^2/D10^2   : 5.76898E-02  (-0.0174491   0.0235698)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         111.11 using 59 PHA bins.
# Reduced chi-squared =         1.9493 for     57 degrees of freedom 
# Null hypothesis probability =   2.383617e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.697e-08   7.869e-09
25- 50  2.594e-07   3.704e-08
50-150  1.090e-06   1.093e-07
15-150  1.397e-06   1.206e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 9.17416       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         135.42 using 59 PHA bins.
# Reduced chi-squared =         2.3758 for     57 degrees of freedom 
# Null hypothesis probability =   2.496672e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.849e-07   1.708e-08
25- 50  3.558e-07   3.704e-08
50-150  7.803e-07   2.039e-07
15-150  1.321e-06   2.902e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 12.8003        (-2.93093      3.20172)
R1^2/D10^2  : 0.279813        (-0.129644      0.278653)
kT2 [keV]   : 59.5611        (-25.6908      -59.5611)
R2^2/D10^2  : 2.86657E-03    (-0.00206702   0.00923812)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.34 using 59 PHA bins.
# Reduced chi-squared =          1.497 for     55 degrees of freedom 
# Null hypothesis probability =   9.909615e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.655e-08   2.978e-08
25- 50  3.252e-07   1.248e-07
50-150  1.110e-06   5.464e-07
15-150  1.522e-06   6.513e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.036 sec. to    0.964 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.02343     ( -0.172417   0.167263 )
Norm@50keV  : 4.68184E-02    ( -0.00507057   0.00502291 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.19 using 59 PHA bins.
# Reduced chi-squared =          1.249 for     57 degrees of freedom 
# Null hypothesis probability =   9.787108e-02
 
Photon flux (15-150 keV)    in 1 sec: 5.39679 ( -0.59985  0.604698 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.02121e-07 ( -5.24828e-08  5.25281e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.036 sec. to    0.964 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.122548     ( -0.947421   0.774352 )
Epeak [keV] : 132.139      ( -37.5541 355.638 )
Norm@50keV  : 0.107891    ( -0.0545276   0.138035 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.19 using 59 PHA bins.
# Reduced chi-squared =          1.200 for     56 degrees of freedom 
# Null hypothesis probability =   1.454995e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.22450 ( -0.61434  0.6197 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.98772e-07 ( -5.413e-08  5.3753e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.036 sec. to    0.964 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.130765   ( 0.857077   0.857077 )
beta        : 10.0000    ( -10   -10 )
Epeak [keV] : 132.956      ( -132.956 -132.956 )
Norm@50keV   : 8.94021E-21    ( -1.43768e-21   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.46 using 59 PHA bins.
# Reduced chi-squared =          1.208 for     55 degrees of freedom 
# Null hypothesis probability =   1.384352e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.24520 (    ) 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]    : 23.5064  (-2.67588  3.22001)
R^2/D10^2   : 0.163496  (-0.0557613   0.0790515)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.30 using 59 PHA bins.
# Reduced chi-squared =          1.286 for     57 degrees of freedom 
# Null hypothesis probability =   7.175208e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.620e-08   3.565e-09
25- 50  8.895e-08   1.470e-08
50-150  3.668e-07   5.720e-08
15-150  4.719e-07   6.075e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-17.9219      -200)
Norm        : 23.1021       (-2.49048     2.49048)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          98.74 using 59 PHA bins.
# Reduced chi-squared =          1.732 for     57 degrees of freedom 
# Null hypothesis probability =   5.055642e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.755e-08   3.201e-08
25- 50  1.107e-07   6.060e-08
50-150  2.428e-07   1.317e-07
15-150  4.111e-07   1.873e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.07237        (-2.0729      11.9489)
R1^2/D10^2  : 1429.42        (-1418.37      -1421.92)
kT2 [keV]   : 24.5321        (-2.95256      8.59149)
R2^2/D10^2  : 0.140054    (-0.137383   0.0734084)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.21 using 59 PHA bins.
# Reduced chi-squared =          1.222 for     55 degrees of freedom 
# Null hypothesis probability =   1.250574e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.266e-08   1.213e-08
25- 50  8.366e-08   1.646e-08
50-150  3.717e-07   6.435e-08
15-150  4.880e-07   7.175e-08
Plot creation:
Thu Feb  9 19:10:08 EST 2017