batgrbproduct analysis for trigger=903357

batgrbproduct Analysis for Trigger=903357

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon May 13 15:00:17 EDT 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger903357/GCN5_download_cron
======================================================================

  Trigger: 00903357      Segment: 000

  BAT Trigger Time: 579364832   [s; MET]
      Trigger Stop: 579364896   [s; MET]
               UTC: 2019-05-12T14:40:09.107780    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 82.4400244290381   Dec: -7.57402254090285  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.64
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.64

  Flight Position:   [ source = BAT ]
    RA: 82.4400244290381   Dec: -7.57402254090285  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 82.4020364599815   Dec: -7.582260474164  [deg; J2000]  
        { 05h 29m 36.5s , -07d 34' 56.1" }
         +/- 2.87083915888408 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.7427207611136 [arcmin] (formal 1-sigma fit error)
    SNR: 6.74248527170562
 
  Angular difference between Flight and Ground position is 2.312805 arcmin
 
  Partial Coding Fraction: 0.8359375    [ including projection effects ]

  Duration
     T90: 40.0999999046326 +/- 11.2772876710584
        Measured from: -8.1839998960495
                   to: 31.9160000085831     [s; relative to TRIGTIME]
     T50: 15.4879999160767 +/- 2.60958237315422
        Measured from: -2.7079998254776
                   to: 12.7800000905991     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -2.78400003910065     
                   to: -1.78400003910065     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -9.70000004768372     
                   to: 43.3079999685287     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.972238   0.976754   0.434621   0.096280
           0.059351   0.061465   0.052526   0.043819 [error]
 Peak      0.032488   0.043119   0.032897   0.023406
           0.008333   0.008755   0.007332   0.006437 [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 3.05e-07 3.97e-07 3.79e-07 6.41e-07 1.29e-06 1.72e-06   erg/cm2
              Error 3.22e-08 2.95e-08 5.05e-08 1.68e-07 1.15e-07 2.24e-07   erg/cm2
Peak flux Power-law 3.18e-01 3.29e-01 2.41e-01 2.83e-01 9.98e-01 1.17e+00   ph/cm2/s
              Error 1.09e-01 7.02e-02 6.17e-02 1.50e-01 2.01e-01 2.40e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.92e-07 4.22e-07 3.64e-07 2.47e-07 1.22e-06 1.33e-06   erg/cm2
              Error 3.56e-08 4.09e-08 5.95e-08 2.82e-07 1.39e-07 3.48e-07   erg/cm2
Peak flux Cutoff-PL 3.19e-01 3.30e-01 2.40e-01 2.79e-01 9.98e-01 1.17e+00   ph/cm2/s
              Error 5.97e-02 7.88e-02 6.54e-02 2.27e-01 2.01e-01 2.85e-01   ph/cm2/s
 
Fluence        Band 2.83e-07 4.28e-07 3.50e-07 4.67e-07 1.24e-06 1.53e-06   erg/cm2
              Error 3.73e-08 -------- 5.82e-08 -------- -------- --------   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    2.067    0.145    -      -           2.63e-03 2.53e-04   51.070 57
CPL   1.532    0.653      35.5    0.0      5.42e-03 0.00e+00   48.740 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.452    0.352    -      -           8.09e-03 1.66e-03   32.610 57
CPL   1.455    0.383    9999.4    0.0      8.10e-03 2.38e-02   32.610 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: 9.280000 sec.
T50 in the 50-300 keV band: 4.544000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   53.008   -9.700   43.308
T90    40.100   -8.184   31.916
T50    15.488   -2.708   12.780
Peak    1.000   -2.784   -1.784

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   82.4020  -7.5823 0.0287   22.1  -49.8       1.9501     6.7  TRIG_00903357       
------------------------------------------
 
Foreground time interval of the image:
 -9.700  43.308 (delta_t =  53.008 [sec])
Background time interval of the image:
-17.899  -9.700 (delta_t =   8.199 [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   -9.700 sec. to   43.308 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.06734     ( -0.142005   0.147942 )
Norm@50keV  : 2.63438E-03    ( -0.000254888   0.000250673 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.07 using 59 PHA bins.
# Reduced chi-squared =         0.8959 for     57 degrees of freedom 
# Null hypothesis probability =   6.960440e-01
 
Photon flux (15-150 keV)    in 53.01 sec: 0.407898 ( -0.0302149  0.0302277 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.29368e-06 ( -1.13863e-07  1.1572e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -9.700 sec. to   43.308 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.53247     ( -0.713269   0.592772 )
Epeak [keV] : 35.4612      (   )
Norm@50keV  : 5.42135E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.74 using 59 PHA bins.
# Reduced chi-squared =         0.8704 for     56 degrees of freedom 
# Null hypothesis probability =   7.435662e-01
 
Photon flux (15-150 keV)    in 53.01 sec: 0.398483 ( -0.031897  0.031882 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.21865e-06 ( -1.35981e-07  1.41473e-07 ) ergs/cm2
 
Band function
Time interval is from   -9.700 sec. to   43.308 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.76121E-02   ( -1.22538   0.675113 )
beta        : -2.31493    ( 2.31154   0.270013 )
Epeak [keV] : 29.0208      ( -9.07487 13.1596 )
Norm@50keV   : 7.25405E-02    ( -0.0708384   222.55 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.92 using 59 PHA bins.
# Reduced chi-squared =         0.8531 for     55 degrees of freedom 
# Null hypothesis probability =   7.726225e-01
 
Photon flux (15-150 keV)    in 53.01 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.23679e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.21917  (-0.783465  0.864724)
R^2/D10^2   : 0.253826  (-0.0752376   0.106101)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.18 using 59 PHA bins.
# Reduced chi-squared =          1.372 for     57 degrees of freedom 
# Null hypothesis probability =   3.281067e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.253e-07   2.812e-08
25- 50  4.971e-07   4.251e-08
50-150  2.040e-07   4.633e-08
15-150  9.265e-07   8.455e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 58.3753       (-11.9752      16.5889)
Norm        : 2.15077       (-0.271686     0.3005)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.95 using 59 PHA bins.
# Reduced chi-squared =         0.8587 for     57 degrees of freedom 
# Null hypothesis probability =   7.671720e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.852e-07   3.045e-08
25- 50  4.304e-07   3.451e-08
50-150  4.786e-07   9.733e-08
15-150  1.194e-06   1.068e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.38950        (-1.29106      1.23664)
R1^2/D10^2  : 0.815282        (-0.368473      0.493883)
kT2 [keV]   : 21.7950        (-6.46179      14.6037)
R2^2/D10^2  : 5.58834E-03    (-0.00468648   0.0121853)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.62 using 59 PHA bins.
# Reduced chi-squared =         0.8657 for     55 degrees of freedom 
# Null hypothesis probability =   7.498478e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.814e-07   7.011e-08
25- 50  4.285e-07   1.032e-07
50-150  5.222e-07   2.755e-07
15-150  1.232e-06   4.175e-07

Peak spectrum fit

Power-law model
Time interval is from   -2.784 sec. to   -1.784 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.45176     ( -0.350138   0.354211 )
Norm@50keV  : 8.09198E-03    ( -0.00166896   0.00164758 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          32.61 using 59 PHA bins.
# Reduced chi-squared =         0.5722 for     57 degrees of freedom 
# Null hypothesis probability =   9.961194e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.997660 ( -0.201233  0.201572 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.74093e-08 ( -1.74799e-08  1.77822e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -2.784 sec. to   -1.784 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.45470     ( -0.412819   0.353268 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 8.10265E-03    ( -0.00167141   0.0460145 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          32.61 using 59 PHA bins.
# Reduced chi-squared =         0.5824 for     56 degrees of freedom 
# Null hypothesis probability =   9.947500e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.997805 ( -0.201593  0.201005 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.73677e-08 ( -1.72533e-08  1.76883e-08 ) ergs/cm2
 
Band function
Time interval is from   -2.784 sec. to   -1.784 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.12710   ( 1.12421   5.72834 )
beta        : -1.54554    ( 1.56082   0.457774 )
Epeak [keV] : 111.104      ( -119.236 -119.236 )
Norm@50keV   : 1.23880E-02    ( -0.00542552   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          32.59 using 59 PHA bins.
# Reduced chi-squared =         0.5926 for     55 degrees of freedom 
# Null hypothesis probability =   9.930146e-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]    : 14.6504  (-3.20674  4.54713)
R^2/D10^2   : 0.124847  (-0.0768335   0.172686)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.85 using 59 PHA bins.
# Reduced chi-squared =         0.6816 for     57 degrees of freedom 
# Null hypothesis probability =   9.684967e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.630e-09   2.340e-09
25- 50  2.188e-08   7.320e-09
50-150  3.162e-08   1.316e-08
15-150  5.914e-08   1.999e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-103.281      -199.363)
Norm        : 4.09856       (-0.81598     0.815993)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          32.99 using 59 PHA bins.
# Reduced chi-squared =         0.5789 for     57 degrees of freedom 
# Null hypothesis probability =   9.954754e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.021e-08   6.055e-09
25- 50  1.963e-08   1.149e-08
50-150  4.306e-08   2.448e-08
15-150  7.290e-08   4.217e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.9853        (-8.33297      4.02094)
R1^2/D10^2  : 0.290094        (-0.184889      261.681)
kT2 [keV]   : 198.201        (-198.377      -198.377)
R2^2/D10^2  : 1.24477E-04    (-8.40463e-05   0.110812)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.19 using 59 PHA bins.
#Fit statistic : Chi-Squared =          33.16 using 59 PHA bins.
# Reduced chi-squared =         0.6035 for     55 degrees of freedom 
# Reduced chi-squared =         0.6029 for     55 degrees of freedom 
# Null hypothesis probability =   9.912763e-01
# Null hypothesis probability =   9.913795e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.787e-09   4.577e-09
25- 50  2.172e-08   1.272e-08
50-150  4.816e-08   2.578e-08
15-150  7.767e-08   3.889e-08
Plot creation:
Mon May 13 15:04:01 EDT 2019