batgrbproduct analysis for trigger=1009679

batgrbproduct Analysis for Trigger=1009679

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Sun Nov 29 12:28:24 EST 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger1009679/GCN5_download_cron
======================================================================

  Trigger: 01009679      Segment: 000

  BAT Trigger Time: 628237704.384   [s; MET]
      Trigger Stop: 628237709.888   [s; MET]
               UTC: 2020-11-28T06:27:58.325240    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 223.135530064962   Dec: 26.6780005543733  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.45
     Image Trigger?:     NO
     Rate S/N Ratio:     12.369316876853  [ if not an image trigger ]
     Image S/N Ratio:    7.45

  Flight Position:   [ source = BAT ]
    RA: 223.135530064962   Dec: 26.6780005543733  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 223.091317844743   Dec: 26.7162832416783  [deg; J2000]  
        { 14h 52m 21.9s , +26d 42' 58.6" }
         +/- 2.41198756940472 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.64937098816581 [arcmin] (formal 1-sigma fit error)
    SNR: 8.64705630255358
 
  Angular difference between Flight and Ground position is 3.300398 arcmin
 
  Partial Coding Fraction: 0.921875    [ including projection effects ]

  Duration
     T90: 5.41199994087219 +/- 3.21968006987493
        Measured from: -0.259999871253967
                   to: 5.15200006961823     [s; relative to TRIGTIME]
     T50: 3.70000004768372 +/- 2.13743119625161
        Measured from: 1.12000012397766
                   to: 4.82000017166138     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 4.20800006389618     
                   to: 5.20800006389618     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.439999938011169     
                   to: 8.73600006103516     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.079863   0.114688   0.080402   0.031534
           0.019946   0.020656   0.018201   0.016198 [error]
 Peak      0.013246   0.021471   0.018140   0.014874
           0.006570   0.006795   0.005818   0.005349 [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 2.26e-08 4.52e-08 7.01e-08 2.39e-07 1.96e-07 3.77e-07   erg/cm2
              Error 8.08e-09 9.55e-09 1.81e-08 1.41e-07 4.41e-08 1.53e-07   erg/cm2
Peak flux Power-law 1.23e-01 1.44e-01 1.21e-01 1.72e-01 4.49e-01 5.60e-01   ph/cm2/s
              Error 8.13e-02 5.79e-02 4.77e-02 1.61e-01 1.55e-01 1.96e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.28e-08 4.53e-08 6.99e-08 2.34e-07 1.95e-07 3.72e-07   erg/cm2
              Error 8.08e-09 9.38e-09 1.81e-08 2.03e-07 4.37e-08 1.47e-07   erg/cm2
Peak flux Cutoff-PL 1.28e-01 1.46e-01 1.19e-01 1.63e-01 4.52e-01 5.58e-01   ph/cm2/s
              Error 8.20e-02 5.89e-02 3.66e-02 1.91e-01 1.16e-01 2.12e-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    1.366    0.369    -      -           2.19e-03 4.34e-04   49.610 57
CPL   2.616    0.982     194.9    0.0      4.53e-04 0.00e+00   48.680 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.248    0.667    -      -           3.80e-03 1.26e-03   45.140 57
CPL   2.169    0.856      60.5    0.0      1.05e-03 1.30e-03   44.870 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    9.176   -0.440    8.736
T90     5.412   -0.260    5.152
T50     3.700    1.120    4.820
Peak    1.000    4.208    5.208

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  223.0913 +26.7163 0.0222   24.8 -171.9       0.3480     8.6  TRIG_01009679       
------------------------------------------
 
Foreground time interval of the image:
 -0.440   8.736 (delta_t =   9.176 [sec])
Background time interval of the image:
-239.384  -0.440 (delta_t = 238.944 [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   -0.440 sec. to    8.736 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.36595     ( -0.372677   0.365605 )
Norm@50keV  : 2.19158E-03    ( -0.000435988   0.00043221 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   49.61     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.46e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 9.176 sec: 0.264904 ( -0.0525662  0.0527284 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.95718e-07 ( -4.365e-08  4.45178e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.440 sec. to    8.736 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.61562     ( -1.80545   0.15869 )
Epeak [keV] : 194.881      (   )
Norm@50keV  : 4.53010E-04    (     )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   48.68     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.46e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 9.176 sec: 0.265661 ( -0.053555  0.052013 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.95216e-07 ( -4.31391e-08  4.43164e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.440 sec. to    8.736 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.929288   ( 0.920661   0.920661 )
beta        : -1.40580    ( 1.40756   0.410888 )
Epeak [keV] : 76.2788      ( -74.4832 -74.4832 )
Norm@50keV   : 4.28611E-03    ( -0.0026847   208027 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 9.176 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]    : 13.5050  (-3.71175  7.18704)
R^2/D10^2   : 4.19109E-02  (-0.0413438   0.0888122)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   61.14     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.30e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.486e-08   6.191e-09
25- 50  5.327e-08   1.927e-08
50-150  6.277e-08   2.806e-08
15-150  1.309e-07   5.356e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-92.9157      -199.363)
Norm        : 1.08660       (-0.213552     0.213558)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   51.05     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.97e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.483e-08   1.446e-08
25- 50  4.776e-08   2.749e-08
50-150  1.047e-07   5.960e-08
15-150  1.773e-07   1.035e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.36025        (-2.35724      2.51756)
R1^2/D10^2  : 0.188602        (-0.12275      0.418258)
kT2 [keV]   : 94.4576        (-63.3912      -94.4576)
R2^2/D10^2  : 1.58865E-04    (-0.000113098   0.00196443)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.08     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.99e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.339e-08   1.389e-08
25- 50  4.923e-08   2.830e-08
50-150  1.404e-07   9.630e-08
15-150  2.130e-07   1.549e-07

Peak spectrum fit

Power-law model
Time interval is from    4.208 sec. to    5.208 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.24767     ( -0.705671   0.628207 )
Norm@50keV  : 3.80022E-03    ( -0.00126029   0.00126019 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.14     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.72e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.449294 ( -0.154841  0.155501 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.80553e-08 ( -1.39007e-08  1.42509e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    4.208 sec. to    5.208 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.16919     ( -1.09569   0.616953 )
Epeak [keV] : 60.5390      ( -9999.36 -9999.36 )
Norm@50keV  : 1.04606E-03    ( -0.00104191   0.00156275 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   44.87     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.57e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.451783 ( -0.07897  0.153137 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.81368e-08 ( -1.40909e-08  1.38629e-08 ) ergs/cm2
 
Band function
Time interval is from    4.208 sec. to    5.208 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.97091   ( -4.97091   -4.97091 )
beta        : -1.44933    ( -1.23749   0.828109 )
Epeak [keV] : 29.8318      ( -29.8318 40.052 )
Norm@50keV   : 114.776    ( -37.7968   2.51777e+06 )
------------------------------------------------------------
 
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]    : 17.7858  (-9.81355  34.5943)
R^2/D10^2   : 2.78451E-02  (-0.0261055   0.403546)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   49.87     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.37e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.770e-09   1.208e-09
25- 50  8.114e-09   5.250e-09
50-150  1.857e-08   1.249e-08
15-150  2.845e-08   1.819e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-199.363      -199.363)
Norm        : 1.86228       (-0.629764     0.629781)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   46.06     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.50e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.637e-09   2.941e-09
25- 50  8.920e-09   5.615e-09
50-150  1.956e-08   1.252e-08
15-150  3.312e-08   2.032e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.71945        (-3.15816      5.53719)
R1^2/D10^2  : 0.412085        (-0.357738      2.50304)
kT2 [keV]   : 73.6086        (-50.3359      -72.979)
R2^2/D10^2  : 4.83753E-04    (-0.000402323   0.00990853)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   43.23     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.75e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.527e-09   2.901e-09
25- 50  8.717e-09   5.175e-09
50-150  2.857e-08   1.691e-08
15-150  4.182e-08   2.150e-08
Plot creation:
Sun Nov 29 12:32:32 EST 2020