batgrbproduct analysis for trigger=773082

batgrbproduct Analysis for Trigger=773082

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Sep 19 10:51:30 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger773082/GCN5_download_cron
======================================================================

  Trigger: 00773082      Segment: 000

  BAT Trigger Time: 527459272   [s; MET]
      Trigger Stop: 527459600   [s; MET]
               UTC: 2017-09-18T20:27:32.292980    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 237.01802344869   Dec: -45.6340057026754  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6.2
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    6.2

  Flight Position:   [ source = BAT ]
    RA: 237.01802344869   Dec: -45.6340057026754  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 236.969808018916   Dec: -45.5760778376729  [deg; J2000]  
        { 15h 47m 52.8s , -45d 34' 33.9" }
         +/- 5.06377859047879 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.87847854517467 [arcmin] (formal 1-sigma fit error)
    SNR: 2.99727050246452
 
  Angular difference between Flight and Ground position is 4.021994 arcmin
 
  Partial Coding Fraction: 0.4648438    [ including projection effects ]

  Duration
     T90: 328 +/- 
        Measured from: 0
                   to: 328     [s; relative to TRIGTIME]
     T50: 328 +/- 
        Measured from: 0
                   to: 328     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 328 second)
        Measured from: 0     
                   to: 328     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 328     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.102940   0.818084   0.217303   0.347774
           0.224231   0.194779   0.159580   0.139600 [error]
 Peak      1.102940   0.818084   0.217303   0.347774
           0.224231   0.194779   0.159580   0.139600 [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 3.59e-07 3.82e-07 2.88e-07 3.54e-07 1.16e-06 1.38e-06   erg/cm2
              Error 1.16e-07 1.01e-07 1.44e-07 4.11e-07 3.41e-07 5.47e-07   erg/cm2
Peak flux Power-law 3.59e-02 2.13e-02 8.05e-03 4.04e-03 6.74e-02 6.93e-02   ph/cm2/s
              Error 1.19e-02 5.49e-03 3.87e-03 3.72e-03 1.67e-02 1.71e-02   ph/cm2/s
 
Fluence   Cutoff-PL 3.50e-07 4.23e-07 2.11e-07 3.80e-08 1.01e-06 1.03e-06   erg/cm2
              Error 1.24e-07 1.38e-07 1.93e-07 3.89e-07 4.01e-07 6.23e-07   erg/cm2
Peak flux Cutoff-PL 3.47e-02 2.37e-02 6.14e-03 5.57e-04 6.50e-02 6.51e-02   ph/cm2/s
              Error 1.29e-02 7.89e-03 5.45e-03 4.22e-03 1.77e-02 1.88e-02   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    2.405    0.522    -      -           3.63e-04 1.33e-04   61.570 57
CPL   1.434    2.809      19.5    0.0      1.58e-03 0.00e+00   61.270 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.405    0.522    -      -           3.63e-04 1.33e-04   61.570 57
CPL   1.434    2.809      19.5    0.0      1.58e-03 0.00e+00   61.270 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  328.000    0.000  328.000
T90   328.000    0.000  328.000
T50   328.000    0.000  328.000
Peak  328.000    0.000  328.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  236.9698 -45.5761 0.0641   37.8 -145.3       2.0891     3.0  TRIG_00773082       
------------------------------------------
 
Foreground time interval of the image:
  0.000 328.000 (delta_t = 328.000 [sec])
Background time interval of the image:

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    0.000 sec. to  328.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.40525     ( -0.4833   0.561279 )
Norm@50keV  : 3.63265E-04    ( -0.000134768   0.000131807 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.57 using 59 PHA bins.
# Reduced chi-squared =          1.080 for     57 degrees of freedom 
# Null hypothesis probability =   3.158451e-01
 
Photon flux (15-150 keV)    in 328 sec: 6.74202E-02 ( -0.0166972  0.0167089 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.16367e-06 ( -3.31129e-07  3.50028e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  328.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.43387     ( -4.95882   0.658224 )
Epeak [keV] : 19.5329      (   )
Norm@50keV  : 1.57588E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.27 using 59 PHA bins.
# Reduced chi-squared =          1.094 for     56 degrees of freedom 
# Null hypothesis probability =   2.927334e-01
 
Photon flux (15-150 keV)    in 328 sec: 6.49956E-02 ( -0.0173318  0.0181094 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01485e-06 ( -3.27803e-07  4.74931e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  328.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95061   ( -4.95061   -4.95061 )
beta        : -2.75147    ( -1.28128   0.662755 )
Epeak [keV] : 21.7501      ( -21.7501 6.03499 )
Norm@50keV   : 206.688    ( -50.0293   1.26255e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.82 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     55 degrees of freedom 
# Null hypothesis probability =   3.050797e-01
 
Photon flux (15-150 keV)    in 328 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]    : 7.22291  (-1.74705  2.22888)
R^2/D10^2   : 0.111725  (-0.0760546   0.255041)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.45 using 59 PHA bins.
# Reduced chi-squared =          1.096 for     57 degrees of freedom 
# Null hypothesis probability =   2.886920e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.169e-07   1.871e-07
25- 50  4.609e-07   2.704e-07
50-150  8.543e-08   6.576e-08
15-150  8.632e-07   5.074e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 32.6086       (-14.2866      36.0508)
Norm        : 0.505415       (-0.214944     0.416826)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.25 using 59 PHA bins.
# Reduced chi-squared =          1.075 for     57 degrees of freedom 
# Null hypothesis probability =   3.261988e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.513e-07   1.284e-07
25- 50  4.196e-07   1.916e-07
50-150  2.556e-07   1.903e-07
15-150  1.026e-06   4.592e-07
Double BB
R1^2/D10^2  : 0.155778        (-0.154759      1.0849)
kT2 [keV]   : 93.2144        (-95.1336      -95.1336)
R2^2/D10^2  : 1.39034E-05    (-1.3469e-05   0.000297858)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.88 using 59 PHA bins.
#Fit statistic : Chi-Squared =          59.86 using 59 PHA bins.
#Fit statistic : Chi-Squared =          59.83 using 59 PHA bins.
# Reduced chi-squared =          1.089 for     55 degrees of freedom 
# Reduced chi-squared =          1.088 for     55 degrees of freedom 
# Reduced chi-squared =          1.088 for     55 degrees of freedom 
# Null hypothesis probability =   3.030030e-01
# Null hypothesis probability =   3.037585e-01
# Null hypothesis probability =   3.046923e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.445e-07   2.040e-07
25- 50  4.214e-07   2.385e-07
50-150  4.514e-07   2.494e-07
15-150  1.217e-06   6.221e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to  328.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.40525     ( -0.4833   0.561279 )
Norm@50keV  : 3.63265E-04    ( -0.000134768   0.000131807 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.57 using 59 PHA bins.
# Reduced chi-squared =          1.080 for     57 degrees of freedom 
# Null hypothesis probability =   3.158451e-01
 
Photon flux (15-150 keV)    in 328 sec: 6.74202E-02 ( -0.0166972  0.0167089 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.16367e-06 ( -3.31129e-07  3.50028e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  328.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.43387     ( -4.95882   0.658224 )
Epeak [keV] : 19.5329      (   )
Norm@50keV  : 1.57588E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.27 using 59 PHA bins.
# Reduced chi-squared =          1.094 for     56 degrees of freedom 
# Null hypothesis probability =   2.927334e-01
 
Photon flux (15-150 keV)    in 328 sec: 6.49956E-02 ( -0.0173318  0.0181094 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01485e-06 ( -3.27803e-07  4.74931e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  328.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95061   ( -4.95061   -4.95061 )
beta        : -2.75147    ( -1.28128   0.662755 )
Epeak [keV] : 21.7501      ( -21.7501 6.03499 )
Norm@50keV   : 206.688    ( -50.0293   1.26255e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.82 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     55 degrees of freedom 
# Null hypothesis probability =   3.050797e-01
 
Photon flux (15-150 keV)    in 328 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]    : 7.22291  (-1.74705  2.22888)
R^2/D10^2   : 0.111725  (-0.0760546   0.255041)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.45 using 59 PHA bins.
# Reduced chi-squared =          1.096 for     57 degrees of freedom 
# Null hypothesis probability =   2.886920e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.169e-07   1.712e-07
25- 50  4.609e-07   2.744e-07
50-150  8.543e-08   6.573e-08
15-150  8.632e-07   4.497e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 32.6086       (-14.2866      36.0508)
Norm        : 0.505415       (-0.214944     0.416826)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.25 using 59 PHA bins.
# Reduced chi-squared =          1.075 for     57 degrees of freedom 
# Null hypothesis probability =   3.261988e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.513e-07   1.375e-07
25- 50  4.196e-07   1.957e-07
50-150  2.556e-07   1.740e-07
15-150  1.026e-06   4.157e-07
Double BB
R1^2/D10^2  : 0.155778        (-0.154759      1.07908)
kT2 [keV]   : 93.2144        (-95.1336      -95.1336)
R2^2/D10^2  : 1.39034E-05    (-1.3469e-05   0.000275754)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.88 using 59 PHA bins.
#Fit statistic : Chi-Squared =          59.86 using 59 PHA bins.
#Fit statistic : Chi-Squared =          59.83 using 59 PHA bins.
# Reduced chi-squared =          1.089 for     55 degrees of freedom 
# Reduced chi-squared =          1.088 for     55 degrees of freedom 
# Reduced chi-squared =          1.088 for     55 degrees of freedom 
# Null hypothesis probability =   3.030030e-01
# Null hypothesis probability =   3.037585e-01
# Null hypothesis probability =   3.046923e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.445e-07   2.009e-07
25- 50  4.214e-07   2.575e-07
50-150  4.514e-07   2.881e-07
15-150  1.217e-06   5.899e-07
Plot creation:
Tue Sep 19 10:58:19 EDT 2017