batgrbproduct analysis for trigger=932742

batgrbproduct Analysis for Trigger=932742

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Nov  4 09:38:15 EST 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger932742/batgroup_hand_proc
======================================================================

  Trigger: 00932742      Segment: 000

  BAT Trigger Time: 594335307.2   [s; MET]
      Trigger Stop: 594335309.248   [s; MET]
               UTC: 2019-11-01T21:08:03.350920    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 251.844271456864   Dec: 43.7542036411452  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.15
     Image Trigger?:     NO
     Rate S/N Ratio:     8.24621125123532  [ if not an image trigger ]
     Image S/N Ratio:    7.15

  Flight Position:   [ source = BAT ]
    RA: 251.844271456864   Dec: 43.7542036411452  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 251.845092073187   Dec: 43.7401477189448  [deg; J2000]  
        { 16h 47m 22.8s , +43d 44' 24.5" }
         +/- 1.71055761051825 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.67928290272828 [arcmin] (formal 1-sigma fit error)
    SNR: 14.1274739425533
 
  Angular difference between Flight and Ground position is 0.844105 arcmin
 
  Partial Coding Fraction: 0.4726562    [ including projection effects ]

  Duration
     T90: 137.952000021935 +/- 22.8284020094228
        Measured from: -16.6640000343323
                   to: 121.287999987602     [s; relative to TRIGTIME]
     T50: 60.432000041008 +/- 21.6397396780648
        Measured from: 0.0399999618530273
                   to: 60.472000002861     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.996000051498413     
                   to: 0.00399994850158691     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -20.9680000543594     
                   to: 143.527999997139     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.977936   1.227119   0.828758   0.121164
           0.104315   0.107900   0.095239   0.085797 [error]
 Peak      0.041501   0.075012   0.020108   0.005123
           0.010221   0.010847   0.010086   0.008914 [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 3.43e-07 5.34e-07 6.23e-07 1.40e-06 1.91e-06 2.90e-06   erg/cm2
              Error 5.38e-08 5.32e-08 9.29e-08 4.33e-07 2.17e-07 5.18e-07   erg/cm2
Peak flux Power-law 5.80e-01 4.39e-01 2.22e-01 1.61e-01 1.32e+00 1.40e+00   ph/cm2/s
              Error 1.61e-01 9.10e-02 7.57e-02 1.03e-01 2.71e-01 2.94e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.28e-07 5.55e-07 6.31e-07 8.28e-07 1.86e-06 2.34e-06   erg/cm2
              Error 6.26e-08 6.88e-08 9.85e-08 8.93e-07 2.42e-07 8.11e-07   erg/cm2
Peak flux Cutoff-PL 4.78e-01 5.42e-01 2.11e-01 2.08e-02 1.25e+00 1.25e+00   ph/cm2/s
              Error 1.93e-01 1.34e-01 9.66e-02 7.03e-02 2.76e-01 2.80e-01   ph/cm2/s
 
Fluence        Band 3.23e-07 5.58e-07 6.16e-07 1.15e-06 1.87e-06 2.65e-06   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    1.776    0.181    -      -           1.26e-03 1.39e-04   45.590 57
CPL   1.441    0.708      78.5  -24.1      1.90e-03 2.16e-03   44.950 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.983    0.371    -      -           8.84e-03 2.33e-03   44.060 57
CPL  -0.003    2.355      41.6   16.8      1.24e-01 2.73e+00   40.720 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: 33.664000 sec.
T50 in the 50-300 keV band: 14.656000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  164.496  -20.968  143.528
T90   137.952  -16.664  121.288
T50    60.432    0.040   60.472
Peak    1.000   -0.996    0.004

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  251.8451 +43.7401 0.0136   40.8  172.7       2.7426    14.1  TRIG_00932742       
------------------------------------------
 
Foreground time interval of the image:
-20.968  25.101 (delta_t =  46.069 [sec])
Background time interval of the image:
-60.200 -20.968 (delta_t =  39.232 [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  -20.968 sec. to  143.528 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.77564     ( -0.177609   0.183847 )
Norm@50keV  : 1.26151E-03    ( -0.000139807   0.000137555 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.59 using 59 PHA bins.
# Reduced chi-squared =         0.7999 for     57 degrees of freedom 
# Null hypothesis probability =   8.611671e-01
 
Photon flux (15-150 keV)    in 164.5 sec: 0.172219 ( -0.0173683  0.0173917 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.91231e-06 ( -2.16008e-07  2.18507e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -20.968 sec. to  143.528 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44055     ( -0.809429   0.607259 )
Epeak [keV] : 78.4720      ( -30.2149 -78.472 )
Norm@50keV  : 1.90213E-03    ( -0.00115534   0.00315814 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.95 using 59 PHA bins.
# Reduced chi-squared =         0.8027 for     56 degrees of freedom 
# Null hypothesis probability =   8.549561e-01
 
Photon flux (15-150 keV)    in 164.5 sec: 0.169695 ( -0.018181  0.018114 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.86216e-06 ( -2.41489e-07  2.4244e-07 ) ergs/cm2
 
Band function
Time interval is from  -20.968 sec. to  143.528 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.39178   ( 1.28308   6.26885 )
beta        : -2.19446    ( 1.97151   0.35088 )
Epeak [keV] : 74.3662      ( -60.5141 -60.5141 )
Norm@50keV   : 2.01594E-03    ( -0.000773185   0.0468607 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.90 using 59 PHA bins.
# Reduced chi-squared =         0.8164 for     55 degrees of freedom 
# Null hypothesis probability =   8.326231e-01
 
Photon flux (15-150 keV)    in 164.5 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.86902e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.3147  (-1.4947  1.70486)
R^2/D10^2   : 3.74463E-02  (-0.0142342   0.0229535)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.88 using 59 PHA bins.
# Reduced chi-squared =          1.191 for     57 degrees of freedom 
# Null hypothesis probability =   1.532899e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.979e-07   3.347e-08
25- 50  6.419e-07   8.126e-08
50-150  5.953e-07   1.267e-07
15-150  1.435e-06   1.846e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 104.099       (-31.3532      73.8065)
Norm        : 0.761711       (-0.102321     0.110915)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.14 using 59 PHA bins.
# Reduced chi-squared =         0.7919 for     57 degrees of freedom 
# Null hypothesis probability =   8.718171e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.275e-07   5.067e-08
25- 50  5.708e-07   6.629e-08
50-150  9.459e-07   3.719e-07
15-150  1.844e-06   4.385e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.34317        (-2.16611      2.36805)
R1^2/D10^2  : 0.280858        (-0.179154      1.06651)
kT2 [keV]   : 21.8239        (-5.82521      15.4161)
R2^2/D10^2  : 3.37381E-03    (-0.00286241   0.00851008)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.09 using 59 PHA bins.
# Reduced chi-squared =         0.8381 for     55 degrees of freedom 
# Null hypothesis probability =   7.982749e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.155e-07   1.684e-07
25- 50  5.575e-07   2.142e-07
50-150  9.535e-07   5.111e-07
15-150  1.827e-06   8.187e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.996 sec. to    0.004 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.98327     ( -0.3483   0.393004 )
Norm@50keV  : 8.83783E-03    ( -0.00236668   0.00228481 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.06 using 59 PHA bins.
# Reduced chi-squared =         0.7730 for     57 degrees of freedom 
# Null hypothesis probability =   8.951084e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.31558 ( -0.270991  0.270993 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.1441e-08 ( -2.00794e-08  2.09815e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.996 sec. to    0.004 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.53109E-03     ( -2.84486   1.8648 )
Epeak [keV] : 41.5541      ( -6.09758 27.5133 )
Norm@50keV  : 0.124497    ( -0.125456   5.32589 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.72 using 59 PHA bins.
# Reduced chi-squared =         0.7272 for     56 degrees of freedom 
# Null hypothesis probability =   9.377422e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.25019 ( -0.275116  0.27642 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.1278e-08 ( -1.79383e-08  2.15358e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.996 sec. to    0.004 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -5.75835E-02   ( 0.869487   2.53264 )
beta        : -10.00000    ( 10   1.39758e-05 )
Epeak [keV] : 41.4634      ( -10.282 27.5268 )
Norm@50keV   : 0.115672    ( -0.0232268   5.35845 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.73 using 59 PHA bins.
# Reduced chi-squared =         0.7405 for     55 degrees of freedom 
# Null hypothesis probability =   9.244207e-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]    : 10.5600  (-2.03535  2.42053)
R^2/D10^2   : 0.534150  (-0.290554   0.652683)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.64 using 59 PHA bins.
# Reduced chi-squared =         0.7306 for     57 degrees of freedom 
# Null hypothesis probability =   9.367919e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.233e-08   4.473e-09
25- 50  3.305e-08   1.211e-08
50-150  2.015e-08   1.004e-08
15-150  6.553e-08   2.060e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 63.9660       (-27.1226      68.0573)
Norm        : 6.83505       (-1.88184     2.60437)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.96 using 59 PHA bins.
# Reduced chi-squared =         0.7362 for     57 degrees of freedom 
# Null hypothesis probability =   9.321310e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.734e-08   5.611e-09
25- 50  2.691e-08   9.715e-09
50-150  3.225e-08   2.248e-08
15-150  7.650e-08   3.177e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.84629        (-2.73186      84.7667)
R1^2/D10^2  : 39.1471        (-42.8783      -42.8783)
kT2 [keV]   : 11.7363        (-2.56966      -11.6813)
R2^2/D10^2  : 0.331311    (-0.334493   0.569795)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.86 using 59 PHA bins.
# Reduced chi-squared =         0.7247 for     55 degrees of freedom 
# Null hypothesis probability =   9.379163e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.487e-08   6.965e-09
25- 50  3.015e-08   1.724e-08
50-150  2.408e-08   1.559e-08
15-150  6.911e-08   3.865e-08
Plot creation:
Mon Nov  4 09:46:26 EST 2019