batgrbproduct analysis for trigger=982707

batgrbproduct Analysis for Trigger=982707

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.47
    Process Start Time (local time): Fri Jul 17 13:13:35 EDT 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger982707/batgroup_hand_proc
======================================================================

  Trigger: 00982707      Segment: 000

  BAT Trigger Time: 616633086.72   [s; MET]
      Trigger Stop: 616633086.976   [s; MET]
               UTC: 2020-07-16T22:57:41.424000    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 196.012971445604   Dec: 29.6298658681777  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    18.06
     Image Trigger?:     NO
     Rate S/N Ratio:     178.566514218092  [ if not an image trigger ]
     Image S/N Ratio:    18.06

  Flight Position:   [ source = BAT ]
    RA: 196.012971445604   Dec: 29.6298658681777  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 196.011699663596   Dec: 29.6377453183828  [deg; J2000]  
        { 13h 04m 02.8s , +29d 38' 15.9" }
         +/- 0.832548606793049 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.307462335089814 [arcmin] (formal 1-sigma fit error)
    SNR: 39.5201836165529
 
  Angular difference between Flight and Ground position is 0.477397 arcmin
 
  Partial Coding Fraction: 0.5703125    [ including projection effects ]

  Duration
     T90: 86.5719999074936 +/- 15.1708020454952
        Measured from: -0.0360000133514404
                   to: 86.5359998941422     [s; relative to TRIGTIME]
     T50: 27.3919999599457 +/- 4.82437846956668
        Measured from: 0.635999917984009
                   to: 28.0279998779297     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.180000066757202     
                   to: 0.819999933242798     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.420000076293945     
                   to: 112.631999969482     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.673364   2.200893   1.517843   0.325384
           0.081999   0.086060   0.075962   0.066839 [error]
 Peak      0.232056   0.442855   0.509601   0.189416
           0.014694   0.018280   0.019336   0.015318 [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 5.62e-07 9.45e-07 1.21e-06 3.10e-06 3.57e-06 5.82e-06   erg/cm2
              Error 4.61e-08 4.57e-08 7.68e-08 4.30e-07 1.81e-07 4.85e-07   erg/cm2
Peak flux Power-law 2.34e+00 3.21e+00 3.27e+00 6.04e+00 1.07e+01 1.49e+01   ph/cm2/s
              Error 2.06e-01 1.72e-01 1.51e-01 6.08e-01 4.67e-01 7.08e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.57e-07 9.51e-07 1.21e-06 2.81e-06 3.56e-06 5.52e-06   erg/cm2
              Error 5.28e-08 5.19e-08 7.97e-08 9.03e-07 2.00e-07 9.02e-07   erg/cm2
Peak flux Cutoff-PL 2.24e+00 3.24e+00 3.33e+00 5.11e+00 1.07e+01 1.39e+01   ph/cm2/s
              Error 2.59e-01 1.82e-01 1.90e-01 1.19e+00 4.78e-01 1.36e+00   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    1.646    0.086    -      -           3.40e-03 1.61e-04   33.830 57
CPL   1.585    0.236     339.2    0.0      3.65e-03 1.03e-03   33.720 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.977    0.075    -      -           9.35e-02 4.01e-03   57.520 57
CPL   0.816    0.254     428.3    0.0      1.10e-01 2.81e-02   56.540 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: 5.440000 sec.
T50 in the 50-300 keV band: 2.048000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  113.052   -0.420  112.632
T90    86.572   -0.036   86.536
T50    27.392    0.636   28.028
Peak    1.000   -0.180    0.820

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  196.0117 +29.6377 0.0049   33.9  161.4       3.9505    39.5  TRIG_00982707       
------------------------------------------
 
Foreground time interval of the image:
 -0.420  17.381 (delta_t =  17.801 [sec])
Background time interval of the image:
-239.720  -0.420 (delta_t = 239.300 [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   -0.420 sec. to  112.632 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.64559     ( -0.0860119   0.0865893 )
Norm@50keV  : 3.39622E-03    ( -0.000161758   0.000161197 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.83 using 59 PHA bins.
# Reduced chi-squared =         0.5935 for     57 degrees of freedom 
# Null hypothesis probability =   9.937450e-01
 
Photon flux (15-150 keV)    in 113.1 sec: 0.442820 ( -0.0213259  0.0213915 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.57398e-06 ( -1.80648e-07  1.8146e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.420 sec. to  112.632 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58461     ( -0.330954   0.140527 )
Epeak [keV] : 339.226      ( -339.256 -339.256 )
Norm@50keV  : 3.64569E-03    ( -0.000400996   0.00165633 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.72 using 59 PHA bins.
# Reduced chi-squared =         0.6022 for     56 degrees of freedom 
# Null hypothesis probability =   9.920092e-01
 
Photon flux (15-150 keV)    in 113.1 sec: 0.441142 ( -0.022816  0.022462 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.55715e-06 ( -2.04496e-07  1.94736e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.420 sec. to  112.632 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -3.79123E-02   ( 0.79877   0.79877 )
beta        : -1.68559    ( 1.68542   0.108432 )
Epeak [keV] : 31.7134      ( -31.6809 223.296 )
Norm@50keV   : 5.01798E-02    ( -0.0510512   403.908 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          32.56 using 59 PHA bins.
# Reduced chi-squared =         0.5921 for     55 degrees of freedom 
# Null hypothesis probability =   9.930896e-01
 
Photon flux (15-150 keV)    in 113.1 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]    : 13.8065  (  )
R^2/D10^2   : 6.28716E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         157.41 using 59 PHA bins.
# Reduced chi-squared =         2.7615 for     57 degrees of freedom 
# Null hypothesis probability =   2.416846e-11
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.867e-07   2.680e-08
25- 50  1.051e-06   6.288e-08
50-150  1.310e-06   1.312e-07
15-150  2.648e-06   1.442e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 162.499       (-34.7223      -162.677)
Norm        : 1.79736       (-0.0971328     0.107605)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          36.07 using 59 PHA bins.
# Reduced chi-squared =         0.6328 for     57 degrees of freedom 
# Null hypothesis probability =   9.862807e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.183e-07   3.834e-08
25- 50  9.716e-07   1.028e-07
50-150  1.980e-06   6.007e-07
15-150  3.470e-06   7.193e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.12573        (-0.979228      1.04841)
R1^2/D10^2  : 0.486351        (-0.181048      0.334447)
kT2 [keV]   : 28.3316        (-4.64566      7.33806)
R2^2/D10^2  : 3.78984E-03    (-0.00204055   0.00345006)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          35.10 using 59 PHA bins.
# Reduced chi-squared =         0.6382 for     55 degrees of freedom 
# Null hypothesis probability =   9.832226e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.126e-07   7.142e-08
25- 50  9.829e-07   1.052e-07
50-150  2.055e-06   4.439e-07
15-150  3.550e-06   5.208e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.180 sec. to    0.820 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.976735     ( -0.0749161   0.0741708 )
Norm@50keV  : 9.34696E-02    ( -0.00401031   0.00400198 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.52 using 59 PHA bins.
# Reduced chi-squared =          1.009 for     57 degrees of freedom 
# Null hypothesis probability =   4.556356e-01
 
Photon flux (15-150 keV)    in 1 sec: 10.7493 ( -0.46713  0.467225 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01919e-06 ( -4.75767e-08  4.77163e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.180 sec. to    0.820 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.816047     ( -0.291803   0.215315 )
Epeak [keV] : 428.294      ( -428.293 -428.293 )
Norm@50keV  : 0.110176    ( -0.0192992   0.036847 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.54 using 59 PHA bins.
# Reduced chi-squared =          1.010 for     56 degrees of freedom 
# Null hypothesis probability =   4.547093e-01
 
Photon flux (15-150 keV)    in 1 sec: 10.6889 ( -0.4777  0.4778 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01331e-06 ( -4.9405e-08  4.918e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.180 sec. to    0.820 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -5   -5 )
beta        : -1.03269    ( -0.0831844   0.0825788 )
Epeak [keV] : 28.0521      ( -12.0816 3.61517 )
Norm@50keV   : 3191.39    ( -134.679   6839.71 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.89 using 59 PHA bins.
# Reduced chi-squared =         0.9617 for     55 degrees of freedom 
# Null hypothesis probability =   5.555889e-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]    : 22.7549  (  )
R^2/D10^2   : 0.349369  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         153.56 using 59 PHA bins.
# Reduced chi-squared =         2.6940 for     57 degrees of freedom 
# Null hypothesis probability =   8.483254e-11
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.295e-08   2.870e-09
25- 50  1.777e-07   1.080e-08
50-150  6.875e-07   4.575e-08
15-150  8.982e-07   5.015e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 43.1032       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         214.61 using 59 PHA bins.
# Reduced chi-squared =         3.7651 for     57 degrees of freedom 
# Null hypothesis probability =   4.054882e-20
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.073e-07   5.000e-09
25- 50  2.065e-07   9.900e-09
50-150  4.528e-07   2.200e-08
15-150  7.666e-07   3.900e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.46885        (-1.401      1.6935)
R1^2/D10^2  : 4.14902        (-1.70135      3.14895)
kT2 [keV]   : 36.9354        (-5.22642      8.7485)
R2^2/D10^2  : 6.83028E-02    (-0.0319775   0.041987)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.75 using 59 PHA bins.
# Reduced chi-squared =         0.9772 for     55 degrees of freedom 
# Null hypothesis probability =   5.225932e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.867e-08   1.179e-08
25- 50  1.925e-07   2.630e-08
50-150  7.646e-07   1.182e-07
15-150  1.026e-06   1.497e-07
Plot creation:
Fri Jul 17 13:29:17 EDT 2020