batgrbproduct analysis for trigger=984929

batgrbproduct Analysis for Trigger=984929

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.47
    Process Start Time (local time): Thu Jul 30 12:51:09 EDT 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger984929/batgroup_hand_proc
======================================================================

  Trigger: 00984929      Segment: 000

  BAT Trigger Time: 617744310.464   [s; MET]
      Trigger Stop: 617744318.656   [s; MET]
               UTC: 2020-07-29T19:38:05.095420    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 184.374725606312   Dec: 45.5823142434638  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.81
     Image Trigger?:     NO
     Rate S/N Ratio:     9.59166304662544  [ if not an image trigger ]
     Image S/N Ratio:    8.81

  Flight Position:   [ source = BAT ]
    RA: 184.374725606312   Dec: 45.5823142434638  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 184.360293791043   Dec: 45.5705349045416  [deg; J2000]  
        { 12h 17m 26.5s , +45d 34' 13.9" }
         +/- 2.31868852413339 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.27353682534939 [arcmin] (formal 1-sigma fit error)
    SNR: 9.14836544638276
 
  Angular difference between Flight and Ground position is 0.931057 arcmin
 
  Partial Coding Fraction: 0.4609375    [ including projection effects ]

  Duration
     T90: 122 +/- 34.2344855372474
        Measured from: 1.53600001335144
                   to: 123.536000013351     [s; relative to TRIGTIME]
     T50: 57 +/- 24.8243831746128
        Measured from: 7.53600001335144
                   to: 64.5360000133514     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 5.53600001335144     
                   to: 6.53600001335144     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.53600001335144     
                   to: 136.536000013351     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.288433   0.584691   0.903058   0.193098
           0.106651   0.111376   0.099071   0.087403 [error]
 Peak      0.026092   0.023619   0.035718   0.025011
           0.011558   0.011721   0.011197   0.009379 [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 1.13e-07 2.90e-07 5.95e-07 3.10e-06 1.60e-06 4.10e-06   erg/cm2
              Error 3.84e-08 5.96e-08 9.19e-08 1.12e-06 2.46e-07 1.14e-06   erg/cm2
Peak flux Power-law 1.26e-01 2.02e-01 2.45e-01 5.84e-01 7.40e-01 1.16e+00   ph/cm2/s
              Error 1.14e-01 1.14e-01 8.24e-02 4.42e-01 2.89e-01 4.23e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.28e-08 2.95e-07 6.62e-07 1.24e-06 1.56e-06 2.28e-06   erg/cm2
              Error 4.88e-08 6.83e-08 1.21e-07 1.55e-06 2.58e-07 1.00e-06   erg/cm2
Peak flux Cutoff-PL 1.14e-01 2.01e-01 2.54e-01 4.90e-01 7.32e-01 1.08e+00   ph/cm2/s
              Error 1.30e-01 1.59e-01 1.05e-01 5.57e-01 2.96e-01 5.27e-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    0.961    0.267    -      -           1.08e-03 1.74e-04   41.760 57
CPL  -0.008    1.359     129.9  -41.4      2.62e-03 4.61e-03   39.860 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.721    0.691    -      -           6.41e-03 2.72e-03   50.150 57
CPL   0.455    1.104     406.1    0.0      7.97e-03 6.99e-02   50.120 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: 54.336000 sec.
T50 in the 50-300 keV band: 28.288000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  136.000    0.536  136.536
T90   122.000    1.536  123.536
T50    57.000    7.536   64.536
Peak    1.000    5.536    6.536

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  184.3603 +45.5705 0.0210   41.5 -158.9       1.5742     9.1  TRIG_00984929       
------------------------------------------
 
Foreground time interval of the image:
  0.536  50.237 (delta_t =  49.701 [sec])
Background time interval of the image:
-239.464   0.536 (delta_t = 240.000 [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    0.536 sec. to  136.536 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.961110     ( -0.276547   0.258376 )
Norm@50keV  : 1.07605E-03    ( -0.000175316   0.000171996 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.76 using 59 PHA bins.
# Reduced chi-squared =         0.7327 for     57 degrees of freedom 
# Null hypothesis probability =   9.350572e-01
 
Photon flux (15-150 keV)    in 136 sec: 0.123669 ( -0.0202425  0.0205052 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.60483e-06 ( -2.45193e-07  2.45899e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.536 sec. to  136.536 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -8.48260E-03     ( -1.65016   1.06741 )
Epeak [keV] : 129.939      ( -47.0662 -129.939 )
Norm@50keV  : 2.62050E-03    ( -0.00161822   0.00760059 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.86 using 59 PHA bins.
# Reduced chi-squared =         0.7117 for     56 degrees of freedom 
# Null hypothesis probability =   9.493201e-01
 
Photon flux (15-150 keV)    in 136 sec: 0.117772 ( -0.0215254  0.021759 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.55961e-06 ( -2.59572e-07  2.56455e-07 ) ergs/cm2
 
Band function
Time interval is from    0.536 sec. to  136.536 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 6.41501E-03   ( -0.717626   1.40451 )
beta        : -10.0000    ( 10   10 )
Epeak [keV] : 130.046      ( -33.935 262.042 )
Norm@50keV   : 2.61631E-03    ( -0.00162741   0.00762215 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.86 using 59 PHA bins.
# Reduced chi-squared =         0.7247 for     55 degrees of freedom 
# Null hypothesis probability =   9.379311e-01
 
Photon flux (15-150 keV)    in 136 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]    : 24.1573  (-4.01454  5.46805)
R^2/D10^2   : 3.39656E-03  (-0.00161262   0.00272832)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.76 using 59 PHA bins.
# Reduced chi-squared =         0.7326 for     57 degrees of freedom 
# Null hypothesis probability =   9.351861e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.767e-08   1.493e-08
25- 50  2.657e-07   7.188e-08
50-150  1.154e-06   2.965e-07
15-150  1.468e-06   3.545e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-33.9692      -200)
Norm        : 0.534505       (-0.0846901     0.0846901)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.06 using 59 PHA bins.
# Reduced chi-squared =         0.9835 for     57 degrees of freedom 
# Null hypothesis probability =   5.103796e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.811e-07   1.031e-07
25- 50  3.484e-07   1.977e-07
50-150  7.640e-07   4.283e-07
15-150  1.294e-06   7.296e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.09774        (-6.09962      -6.09962)
R1^2/D10^2  : 8.34798E-02        (-0.0832822      -0.0832822)
kT2 [keV]   : 27.1722        (-5.93281      -27.1757)
R2^2/D10^2  : 2.22009E-03    (-0.00221901   0.00226326)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.55 using 59 PHA bins.
# Reduced chi-squared =         0.7190 for     55 degrees of freedom 
# Null hypothesis probability =   9.423140e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.438e-08   5.520e-08
25- 50  2.778e-07   1.370e-07
50-150  1.182e-06   6.514e-07
15-150  1.555e-06   8.075e-07

Peak spectrum fit

Power-law model
Time interval is from    5.536 sec. to    6.536 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.721122     ( -0.773142   0.609661 )
Norm@50keV  : 6.41471E-03    ( -0.00285567   0.00258868 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.15 using 59 PHA bins.
# Reduced chi-squared =         0.8799 for     57 degrees of freedom 
# Null hypothesis probability =   7.277049e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.740347 ( -0.28361  0.295106 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.75625e-08 ( -2.61465e-08  2.61617e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    5.536 sec. to    6.536 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.454700     ( -2.66286   -0.4547 )
Epeak [keV] : 406.064      ( -406.064 -406.064 )
Norm@50keV  : 7.97031E-03    ( -0.00426103   0.135579 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.12 using 59 PHA bins.
# Reduced chi-squared =         0.8949 for     56 degrees of freedom 
# Null hypothesis probability =   6.960598e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.732184 ( -0.290648  0.300646 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.76047e-08 ( -2.62269e-08  2.62323e-08 ) ergs/cm2
 
Band function
Time interval is from    5.536 sec. to    6.536 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.838679   ( 0.838723   0.838723 )
beta        : -0.721121    ( -0.609126   0.773463 )
Epeak [keV] : 12.3583      ( -12.3577 -12.3577 )
Norm@50keV   : 1.01775E-02    ( -0.00627639   163735 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.15 using 59 PHA bins.
# Reduced chi-squared =         0.9119 for     55 degrees of freedom 
# Null hypothesis probability =   6.600014e-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]    : 31.9778  (-11.959  36.4646)
R^2/D10^2   : 9.41875E-03  (-0.00941814   0.0298104)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.90 using 59 PHA bins.
# Reduced chi-squared =         0.8929 for     57 degrees of freedom 
# Null hypothesis probability =   7.020780e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.448e-09   9.530e-10
25- 50  9.158e-09   5.780e-09
50-150  6.435e-08   3.924e-08
15-150  7.495e-08   4.590e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-92.8494      -200)
Norm        : 3.23317       (-1.22842     1.22842)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.44 using 59 PHA bins.
# Reduced chi-squared =         0.9726 for     57 degrees of freedom 
# Null hypothesis probability =   5.339711e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.061e-09   5.180e-09
25- 50  1.551e-08   9.700e-09
50-150  3.401e-08   2.090e-08
15-150  5.757e-08   3.625e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.32957        (-7.29861      -7.29861)
R1^2/D10^2  : 0.367164        (-0.370607      2.28254)
kT2 [keV]   : 40.0427        (-40.0081      -40.0081)
R2^2/D10^2  : 4.64358E-03    (-0.00465528   0.0250475)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.92 using 59 PHA bins.
# Reduced chi-squared =         0.9076 for     55 degrees of freedom 
# Null hypothesis probability =   6.687226e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.275e-09   3.101e-09
25- 50  1.151e-08   6.460e-09
50-150  6.366e-08   3.722e-08
15-150  7.944e-08   4.210e-08
Plot creation:
Thu Jul 30 13:01:58 EDT 2020