batgrbproduct analysis for trigger=859282

batgrbproduct Analysis for Trigger=859282

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Sep  5 19:22:18 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger859282/GCN5_download_cron
======================================================================

  Trigger: 00859282      Segment: 000

  BAT Trigger Time: 557789333.952   [s; MET]
      Trigger Stop: 557789339.456   [s; MET]
               UTC: 2018-09-04T21:28:32.411820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 274.250355605755   Dec: 46.6232891785215  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.12
     Image Trigger?:     NO
     Rate S/N Ratio:     10  [ if not an image trigger ]
     Image S/N Ratio:    8.12

  Flight Position:   [ source = BAT ]
    RA: 274.250355605755   Dec: 46.6232891785215  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 274.259861569459   Dec: 46.6398958297025  [deg; J2000]  
        { 18h 17m 02.4s , +46d 38' 23.6" }
         +/- 2.38593875633782 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.01060516735443 [arcmin] (formal 1-sigma fit error)
    SNR: 8.78223605216776
 
  Angular difference between Flight and Ground position is 1.070610 arcmin
 
  Partial Coding Fraction: 0.5625    [ including projection effects ]

  Duration
     T90: 5.39599990844727 +/- 0.889557167793589
        Measured from: 0.484000086784363
                   to: 5.87999999523163     [s; relative to TRIGTIME]
     T50: 3.2279999256134 +/- 1.25478282695361
        Measured from: 1.77600014209747
                   to: 5.00400006771088     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 5.1360000371933     
                   to: 6.1360000371933     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.279999971389771     
                   to: 6.17999994754791     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.041556   0.124226   0.112279   0.041860
           0.018931   0.019465   0.017273   0.015317 [error]
 Peak      0.014256   0.023830   0.026899   0.013203
           0.007553   0.008072   0.007153   0.006116 [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 1.79e-08 4.43e-08 8.77e-08 4.32e-07 2.37e-07 5.81e-07   erg/cm2
              Error 6.50e-09 9.71e-09 1.63e-08 1.88e-07 4.30e-08 1.94e-07   erg/cm2
Peak flux Power-law 1.36e-01 1.58e-01 1.32e-01 1.87e-01 4.94e-01 6.13e-01   ph/cm2/s
              Error 9.53e-02 6.92e-02 5.64e-02 1.77e-01 1.89e-01 2.34e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.62e-08 4.65e-08 9.18e-08 2.15e-07 2.29e-07 3.68e-07   erg/cm2
              Error 7.51e-09 1.15e-08 1.88e-08 2.44e-07 4.89e-08 2.28e-07   erg/cm2
Peak flux Cutoff-PL 1.20e-01 1.63e-01 1.40e-01 1.13e-01 4.82e-01 5.37e-01   ph/cm2/s
              Error 1.16e-01 7.77e-02 7.24e-02 1.66e-01 2.51e-01 3.04e-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    1.015    0.305    -      -           3.73e-03 6.61e-04   57.070 57
CPL   0.514    1.172     159.4    0.0      6.47e-03 1.61e-02   56.610 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.257    0.689    -      -           4.17e-03 1.53e-03   47.130 57
CPL   0.725    3.532     132.5    0.0      7.34e-03 0.00e+00   47.040 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: 8.256000 sec.
T50 in the 50-300 keV band: 3.840000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    5.900    0.280    6.180
T90     5.396    0.484    5.880
T50     3.228    1.776    5.004
Peak    1.000    5.136    6.136

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  274.2599 +46.6399 0.0219   30.3  -48.4       0.3317     8.8  TRIG_00859282       
------------------------------------------
 
Foreground time interval of the image:
  0.280   6.180 (delta_t =   5.900 [sec])
Background time interval of the image:
-239.952   0.280 (delta_t = 240.232 [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    0.280 sec. to    6.180 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.01495     ( -0.316794   0.292751 )
Norm@50keV  : 3.73439E-03    ( -0.000664179   0.000657076 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.07 using 59 PHA bins.
# Reduced chi-squared =          1.001 for     57 degrees of freedom 
# Null hypothesis probability =   4.723264e-01
 
Photon flux (15-150 keV)    in 5.9 sec: 0.430320 ( -0.0779438  0.0785196 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.3698e-07 ( -4.27931e-08  4.31888e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.280 sec. to    6.180 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.513884     ( -1.5921   0.752508 )
Epeak [keV] : 159.386      ( -159.671 -159.671 )
Norm@50keV  : 6.47064E-03    ( -0.00330136   0.0288554 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.61 using 59 PHA bins.
# Reduced chi-squared =          1.011 for     56 degrees of freedom 
# Null hypothesis probability =   4.522179e-01
 
Photon flux (15-150 keV)    in 5.9 sec: 0.422300 ( -0.080579  0.080919 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.28929e-07 ( -5.01388e-08  4.75634e-08 ) ergs/cm2
 
Band function
Time interval is from    0.280 sec. to    6.180 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -4.93608   -5 )
beta        : -1.37849    ( -0.534045   0.428425 )
Epeak [keV] : 38.4337      ( -10.2618 9.20469 )
Norm@50keV   : 24.5250    ( -4.10961   116.458 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.57 using 59 PHA bins.
# Reduced chi-squared =         0.9558 for     55 degrees of freedom 
# Null hypothesis probability =   5.680629e-01
 
Photon flux (15-150 keV)    in 5.9 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]    : 19.7350  (-4.10847  5.99897)
R^2/D10^2   : 2.15161E-02  (-0.0123908   0.0253211)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.58 using 59 PHA bins.
# Reduced chi-squared =          1.063 for     57 degrees of freedom 
# Null hypothesis probability =   3.479999e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.581e-09   3.727e-09
25- 50  4.730e-08   1.471e-08
50-150  1.363e-07   4.629e-08
15-150  1.932e-07   5.785e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-48.2896      -200)
Norm        : 1.80918       (-0.324599     0.324599)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.39 using 59 PHA bins.
# Reduced chi-squared =          1.147 for     57 degrees of freedom 
# Null hypothesis probability =   2.083632e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.660e-08   1.535e-08
25- 50  5.117e-08   2.893e-08
50-150  1.122e-07   6.455e-08
15-150  1.900e-07   1.088e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 12.8912        (-3.99037      4.79175)
R1^2/D10^2  : 6.84326E-02        (-0.0473462      0.13746)
kT2 [keV]   : 200.000        (-200      -200)
R2^2/D10^2  : 7.20033E-05    (-3.8663e-05   0.000472644)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.28 using 59 PHA bins.
#Fit statistic : Chi-Squared =          53.05 using 59 PHA bins.
# Reduced chi-squared =         0.9688 for     55 degrees of freedom 
# Reduced chi-squared =         0.9645 for     55 degrees of freedom 
# Null hypothesis probability =   5.404623e-01
# Null hypothesis probability =   5.496110e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.506e-08   9.169e-09
25- 50  5.290e-08   3.100e-08
50-150  1.660e-07   7.009e-08
15-150  2.339e-07   9.888e-08

Peak spectrum fit

Power-law model
Time interval is from    5.136 sec. to    6.136 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25723     ( -0.70571   0.672069 )
Norm@50keV  : 4.17041E-03    ( -0.00153358   0.00153325 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.13 using 59 PHA bins.
# Reduced chi-squared =         0.8268 for     57 degrees of freedom 
# Null hypothesis probability =   8.213584e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.493842 ( -0.18825  0.190135 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.16579e-08 ( -1.6511e-08  1.68725e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    5.136 sec. to    6.136 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.724860     ( -0.723473   6.33971 )
Epeak [keV] : 132.484      ( -132.235 -132.235 )
Norm@50keV  : 7.33970E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.04 using 59 PHA bins.
# Reduced chi-squared =         0.8400 for     56 degrees of freedom 
# Null hypothesis probability =   7.974328e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.481626 ( -0.303751  0.19882 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.05353e-08 ( -1.74783e-08  1.77405e-08 ) ergs/cm2
 
Band function
Time interval is from    5.136 sec. to    6.136 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.729475   ( 0.730111   5.2614 )
beta        : -1.74812    ( 1.63648   1.63648 )
Epeak [keV] : 135.399      ( -135.104 -135.104 )
Norm@50keV   : 7.22639E-03    ( -0.00450368   0.0329087 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.01 using 59 PHA bins.
# Reduced chi-squared =         0.8547 for     55 degrees of freedom 
# Null hypothesis probability =   7.697520e-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]    : 19.3400  (-6.60918  12.2316)
R^2/D10^2   : 2.54968E-02  (-0.0254968   0.077468)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.65 using 59 PHA bins.
# Reduced chi-squared =         0.8360 for     57 degrees of freedom 
# Null hypothesis probability =   8.065038e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.862e-09   1.222e-09
25- 50  9.069e-09   5.535e-09
50-150  2.501e-08   1.673e-08
15-150  3.594e-08   2.381e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-199.363      -199.363)
Norm        : 2.06352       (-0.770067     0.770044)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.70 using 59 PHA bins.
# Reduced chi-squared =         0.8369 for     57 degrees of freedom 
# Null hypothesis probability =   8.050843e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.138e-09   3.310e-09
25- 50  9.884e-09   6.140e-09
50-150  2.168e-08   1.353e-08
15-150  3.670e-08   2.358e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.50960        (-3.94947      24.5735)
R1^2/D10^2  : 40.0799        (-53.7527      -53.7527)
kT2 [keV]   : 20.8983        (-7.29792      -20.7818)
R2^2/D10^2  : 1.89699E-02    (-0.0195352   0.0298176)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.50 using 59 PHA bins.
#Fit statistic : Chi-Squared =          46.48 using 59 PHA bins.
# Reduced chi-squared =         0.8455 for     55 degrees of freedom 
# Reduced chi-squared =         0.8450 for     55 degrees of freedom 
# Null hypothesis probability =   7.857094e-01
# Null hypothesis probability =   7.865324e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.252e-09   2.970e-09
25- 50  8.438e-09   5.045e-09
50-150  2.649e-08   1.782e-08
15-150  3.918e-08   2.302e-08
Plot creation:
Wed Sep  5 19:26:58 EDT 2018