batgrbproduct analysis for trigger=960102

batgrbproduct Analysis for Trigger=960102

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Mar  8 23:30:31 EDT 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger960102/batgroup_hand_proc
======================================================================

  Trigger: 00960102      Segment: 000

  BAT Trigger Time: 605227863.616   [s; MET]
      Trigger Stop: 605227867.712   [s; MET]
               UTC: 2020-03-06T22:50:39.061800    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 198.58161324179   Dec: 11.2550650612691  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.35
     Image Trigger?:     NO
     Rate S/N Ratio:     14.1067359796659  [ if not an image trigger ]
     Image S/N Ratio:    7.35

  Flight Position:   [ source = BAT ]
    RA: 198.58161324179   Dec: 11.2550650612691  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 198.577496058268   Dec: 11.2632389990809  [deg; J2000]  
        { 13h 14m 18.6s , +11d 15' 47.7" }
         +/- 1.27425571534339 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.421685456130134 [arcmin] (formal 1-sigma fit error)
    SNR: 21.5155187986769
 
  Angular difference between Flight and Ground position is 0.547015 arcmin
 
  Partial Coding Fraction: 0.4296875    [ including projection effects ]

  Duration
     T90: 53.4959999322891 +/- 12.7582025458703
        Measured from: -8.78400003910065
                   to: 44.7119998931885     [s; relative to TRIGTIME]
     T50: 19.0759999752045 +/- 3.43351141244812
        Measured from: 0.163999915122986
                   to: 19.2399998903275     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.44799995422363     
                   to: 4.44799995422363     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -12.3280000686646     
                   to: 50.6999999284744     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.563928   1.138833   1.285662   0.596776
           0.075099   0.078858   0.071361   0.062020 [error]
 Peak      0.030660   0.052478   0.058428   0.014664
           0.010149   0.011209   0.009994   0.008463 [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 1.69e-07 4.68e-07 1.05e-06 6.26e-06 2.83e-06 7.95e-06   erg/cm2
              Error 2.62e-08 4.26e-08 6.73e-08 1.00e-06 1.83e-07 1.01e-06   erg/cm2
Peak flux Power-law 3.07e-01 3.91e-01 3.64e-01 5.95e-01 1.26e+00 1.66e+00   ph/cm2/s
              Error 1.24e-01 9.68e-02 7.95e-02 2.83e-01 2.61e-01 3.49e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.70e-07 4.69e-07 1.05e-06 6.18e-06 2.83e-06 7.87e-06   erg/cm2
              Error 2.88e-08 4.24e-08 6.87e-08 1.21e-06 1.82e-07 1.20e-06   erg/cm2
Peak flux Cutoff-PL 2.80e-01 4.01e-01 3.79e-01 3.97e-01 1.24e+00 1.46e+00   ph/cm2/s
              Error 1.47e-01 1.08e-01 9.54e-02 4.49e-01 2.71e-01 4.73e-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    0.834    0.121    -      -           3.90e-03 2.69e-04   57.990 57
CPL   0.833    0.123    9999.4    0.0      3.93e-03 7.28e-04   58.040 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.104    0.352    -      -           1.09e-02 2.18e-03   65.860 57
CPL   0.717    0.539     183.0    0.0      1.64e-02 0.00e+00   65.620 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: 35.712000 sec.
T50 in the 50-300 keV band: 16.832000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   63.028  -12.328   50.700
T90    53.496   -8.784   44.712
T50    19.076    0.164   19.240
Peak    1.000    3.448    4.448

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  198.5775 +11.2632 0.0089   30.6   58.5       3.2293    21.5  TRIG_00960102       
------------------------------------------
 
Foreground time interval of the image:
-12.328  37.085 (delta_t =  49.413 [sec])
Background time interval of the image:
-239.616 -12.328 (delta_t = 227.288 [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  -12.328 sec. to   50.700 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.834384     ( -0.123517   0.119237 )
Norm@50keV  : 3.89826E-03    ( -0.000270568   0.00026688 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.99 using 59 PHA bins.
# Reduced chi-squared =          1.017 for     57 degrees of freedom 
# Null hypothesis probability =   4.384732e-01
 
Photon flux (15-150 keV)    in 63.03 sec: 0.447607 ( -0.0302984  0.0304711 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.83065e-06 ( -1.82672e-07  1.83207e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -12.328 sec. to   50.700 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.832720     ( -0.129317   0.115871 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 3.92663E-03    ( -0.00027502   0.00118179 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.04 using 59 PHA bins.
# Reduced chi-squared =          1.036 for     56 degrees of freedom 
# Null hypothesis probability =   3.999573e-01
 
Photon flux (15-150 keV)    in 63.03 sec: 0.447851 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.8297e-06 ( -1.81091e-07  1.82844e-07 ) ergs/cm2
 
Band function
Time interval is from  -12.328 sec. to   50.700 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.810355   ( 0.810355   0.810355 )
beta        : -0.834397    ( -0.119188   0.123525 )
Epeak [keV] : 15.1705      ( -15.1705 -15.1705 )
Norm@50keV   : 5.73007E-03    ( -0.00209536   123498 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.99 using 59 PHA bins.
# Reduced chi-squared =          1.054 for     55 degrees of freedom 
# Null hypothesis probability =   3.655502e-01
 
Photon flux (15-150 keV)    in 63.03 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]    : 27.7321  (-2.69968  3.20948)
R^2/D10^2   : 8.07795E-03  (-0.00222361   0.00292008)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         105.34 using 59 PHA bins.
# Reduced chi-squared =         1.8481 for     57 degrees of freedom 
# Null hypothesis probability =   1.034163e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.421e-08   9.357e-09
25- 50  3.829e-07   4.554e-08
50-150  2.136e-06   2.127e-07
15-150  2.583e-06   2.099e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 1.88731       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         165.46 using 59 PHA bins.
# Reduced chi-squared =         2.9028 for     57 degrees of freedom 
# Null hypothesis probability =   1.659998e-12
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.962e-07   2.307e-08
25- 50  5.698e-07   6.155e-08
50-150  1.250e-06   3.837e-07
15-150  2.116e-06   3.586e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.0080        (-2.1538      2.64819)
R1^2/D10^2  : 0.107500        (-0.052707      0.118305)
kT2 [keV]   : 53.5648        (-13.9793      43.6029)
R2^2/D10^2  : 1.14598E-03    (-0.000832323   0.000885043)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.35 using 59 PHA bins.
# Reduced chi-squared =          1.006 for     55 degrees of freedom 
# Null hypothesis probability =   4.615806e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.597e-07   5.244e-08
25- 50  5.014e-07   1.351e-07
50-150  2.230e-06   1.011e-06
15-150  2.892e-06   1.151e-06

Peak spectrum fit

Power-law model
Time interval is from    3.448 sec. to    4.448 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.10374     ( -0.362806   0.342194 )
Norm@50keV  : 1.08764E-02    ( -0.00218047   0.00217156 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.86 using 59 PHA bins.
# Reduced chi-squared =          1.155 for     57 degrees of freedom 
# Null hypothesis probability =   1.972002e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.26208 ( -0.260692  0.262182 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.13586e-07 ( -2.42388e-08  2.44986e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    3.448 sec. to    4.448 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.717209     ( -1.7949   -0.717224 )
Epeak [keV] : 183.041      ( -183.048 -183.048 )
Norm@50keV  : 1.64416E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.62 using 59 PHA bins.
# Reduced chi-squared =          1.172 for     56 degrees of freedom 
# Null hypothesis probability =   1.778299e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.24201 ( -0.271914  0.27087 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.11093e-07 ( -2.68368e-08  2.5965e-08 ) ergs/cm2
 
Band function
Time interval is from    3.448 sec. to    4.448 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.280795   ( 0.248014   4.47609 )
beta        : -1.30658    ( 1.31215   0.539358 )
Epeak [keV] : 93.5001      ( -88.4467 342.855 )
Norm@50keV   : 2.96397E-02    ( -0.0338863   137.617 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.44 using 59 PHA bins.
# Reduced chi-squared =          1.190 for     55 degrees of freedom 
# Null hypothesis probability =   1.582848e-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]    : 19.7068  (-4.62755  7.1529)
R^2/D10^2   : 6.21162E-02  (-0.0391753   0.0895826)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.21 using 59 PHA bins.
# Reduced chi-squared =          1.214 for     57 degrees of freedom 
# Null hypothesis probability =   1.287649e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.677e-09   2.143e-09
25- 50  2.307e-08   1.017e-08
50-150  6.627e-08   2.799e-08
15-150  9.402e-08   3.763e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-65.0941      -200)
Norm        : 5.25501       (-1.07658     1.07658)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.26 using 59 PHA bins.
# Reduced chi-squared =          1.233 for     57 degrees of freedom 
# Null hypothesis probability =   1.115441e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.308e-08   7.655e-09
25- 50  2.517e-08   1.443e-08
50-150  5.521e-08   3.205e-08
15-150  9.346e-08   5.430e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.7743        (-8.64771      -10.8558)
R1^2/D10^2  : 0.276813        (-0.204421      135.735)
kT2 [keV]   : 41.4581        (-25.7468      -45.1567)
R2^2/D10^2  : 4.52240E-03    (-0.00314466   0.0546975)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.56 using 59 PHA bins.
# Reduced chi-squared =          1.192 for     55 degrees of freedom 
# Null hypothesis probability =   1.558353e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.662e-09   4.789e-09
25- 50  2.513e-08   1.439e-08
50-150  7.910e-08   4.078e-08
15-150  1.119e-07   5.790e-08
Plot creation:
Sun Mar  8 23:50:51 EDT 2020