batgrbproduct Analysis for Trigger=633105

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Mar 11 13:51:33 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger633105/batgroup_hand_proc
======================================================================

  Trigger: 00633105      Segment: 000

  BAT Trigger Time: 446883667.392   [s; MET]
      Trigger Stop: 446883671.488   [s; MET]
               UTC: 2015-03-01T06:20:54.142000    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 11.3318427849221   Dec: 41.8571401016604  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.75
     Image Trigger?:     NO
     Rate S/N Ratio:     13.6014705087354  [ if not an image trigger ]
     Image S/N Ratio:    8.75

  Flight Position:   [ source = BAT ]
    RA: 11.3318427849221   Dec: 41.8571401016604  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 11.3174628753189   Dec: 41.8558983109632  [deg; J2000]  
        { 00h 45m 16.2s , +41d 51' 21.2" }
         +/- 2.09167805374168 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.799193393538057 [arcmin] (formal 1-sigma fit error)
    SNR: 10.5990907088333
 
  Angular difference between Flight and Ground position is 0.646930 arcmin
 
  Partial Coding Fraction: 0.6953125    [ including projection effects ]

  Duration
     T90: 13.8080000281334 +/- 2.70797341334817
        Measured from: -0.0320000052452087
                   to: 13.7760000228882     [s; relative to TRIGTIME]
     T50: 7.32800000905991 +/- 2.76762998725776
        Measured from: 1.72799998521805
                   to: 9.05599999427795     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.44400000572205     
                   to: 2.44400000572205     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.703999996185303     
                   to: 14.6879999637604     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.191740   0.229691   0.052633   0.017774
           0.025359   0.025262   0.021713   0.019044 [error]
 Peak      0.018963   0.033774   0.020390   0.007236
           0.006603   0.006774   0.005607   0.004792 [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 6.03e-08 7.73e-08 7.24e-08 1.19e-07 2.50e-07 3.30e-07   erg/cm2
              Error 1.08e-08 1.15e-08 1.87e-08 5.81e-08 4.44e-08 8.23e-08   erg/cm2
Peak flux Power-law 2.20e-01 2.08e-01 1.37e-01 1.40e-01 6.22e-01 7.04e-01   ph/cm2/s
              Error 8.14e-02 5.23e-02 4.42e-02 8.73e-02 1.54e-01 1.76e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.36e-08 1.02e-07 4.87e-08 3.18e-09 2.07e-07 2.07e-07   erg/cm2
              Error 1.25e-08 1.75e-08 2.44e-08 1.02e-08 3.79e-08 3.88e-08   erg/cm2
Peak flux Cutoff-PL 1.68e-01 2.50e-01 1.48e-01 2.73e-02 5.90e-01 5.94e-01   ph/cm2/s
              Error 9.80e-02 7.26e-02 5.66e-02 7.14e-02 1.58e-01 1.67e-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    2.094    0.254    -      -           1.75e-03 3.37e-04   64.930 57
CPL  -0.588    1.811      35.2    6.0      8.24e-02 8.79e-01   54.360 56
 
The chi2 of BB fit is Chi-Squared Chi-Squared which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.603    0.395    -      -           4.83e-03 1.26e-03   54.740 57
CPL  -0.248    2.569      56.4  157.7      4.69e-02 1.21e+00   51.790 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   15.392   -0.704   14.688
T90    13.808   -0.032   13.776
T50     7.328    1.728    9.056
Peak    1.000    1.444    2.444

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
   11.3175    41.8559   0.0182    21.9005  -103.8800         0.4879084     10.599 TRIG_00633105                 
 
Foreground time interval of the image:
 -0.704  14.688 (delta_t =  15.392 [sec])
Background time interval of the image:
-239.392  -0.704 (delta_t = 238.688 [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   -0.704 sec. to   14.688 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.09403     ( -0.244013   0.263939 )
Norm@50keV  : 1.75122E-03    ( -0.000339606   0.000334791 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.93 using 59 PHA bins.
# Reduced chi-squared =          1.139 for     57 degrees of freedom 
# Null hypothesis probability =   2.198907e-01
 
Photon flux (15-150 keV)    in 15.39 sec: 0.274701 ( -0.0390509  0.0390587 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.50229e-07 ( -4.34812e-08  4.52209e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.704 sec. to   14.688 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.588399     ( -2.07573   1.5457 )
Epeak [keV] : 35.1844      ( -5.65557 6.43166 )
Norm@50keV  : 8.23997E-02    ( -0.0855367   1.67159 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.36 using 59 PHA bins.
# Reduced chi-squared =         0.9707 for     56 degrees of freedom 
# Null hypothesis probability =   5.371838e-01
 
Photon flux (15-150 keV)    in 15.39 sec: 0.261730 ( -0.038176  0.03845 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.06919e-07 ( -3.51338e-08  4.06419e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.704 sec. to   14.688 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.615441   ( -1.48073   2.3274 )
beta        : -9.99913    ( 9.99913   19.9983 )
Epeak [keV] : 35.1710      ( -5.14943 6.02725 )
Norm@50keV   : 8.58694E-02    ( -0.0117427   1.67766 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.36 using 59 PHA bins.
# Reduced chi-squared =         0.9883 for     55 degrees of freedom 
# Null hypothesis probability =   4.990893e-01
 
Photon flux (15-150 keV)    in 15.39 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]    : 9.02792  (-1.15518  1.30931)
R^2/D10^2   : 0.203853  (-0.0841276   0.142998)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.09 using 59 PHA bins.
# Reduced chi-squared =         0.9665 for     57 degrees of freedom 
# Null hypothesis probability =   5.470370e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.986e-08   1.178e-08
25- 50  1.065e-07   2.112e-08
50-150  4.101e-08   1.709e-08
15-150  1.974e-07   4.209e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 49.1816       (-14.3742      24.7885)
Norm        : 1.61112       (-0.331599     0.437215)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.81 using 59 PHA bins.
# Reduced chi-squared =          1.032 for     57 degrees of freedom 
# Null hypothesis probability =   4.090623e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.039e-08   1.144e-08
25- 50  8.623e-08   1.497e-08
50-150  8.242e-08   3.722e-08
15-150  2.290e-07   5.025e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.74153        (-4.72539      -4.72539)
R1^2/D10^2  : 0.611589        (-0.616447      -0.616447)
kT2 [keV]   : 10.2026        (-10.1997      -10.1997)
R2^2/D10^2  : 0.108012    (-0.108237   0.208204)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.25 using 59 PHA bins.
# Reduced chi-squared =         0.9864 for     55 degrees of freedom 
# Null hypothesis probability =   5.031872e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.389e-08   2.873e-08
25- 50  1.012e-07   5.790e-08
50-150  5.048e-08   3.104e-08
15-150  2.056e-07   1.107e-07

Peak spectrum fit

Power-law model
Time interval is from    1.444 sec. to    2.444 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.60290     ( -0.385237   0.403848 )
Norm@50keV  : 4.83229E-03    ( -0.00127446   0.00125151 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.74 using 59 PHA bins.
# Reduced chi-squared =         0.9604 for     57 degrees of freedom 
# Null hypothesis probability =   5.601985e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.621523 ( -0.153592  0.153833 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.51781e-08 ( -1.24193e-08  1.27856e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.444 sec. to    2.444 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.248423     ( -3.30265   1.83608 )
Epeak [keV] : 56.3970      ( -15.1467 300.205 )
Norm@50keV  : 4.68601E-02    ( -0.0468601   2.38072 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.79 using 59 PHA bins.
# Reduced chi-squared =         0.9248 for     56 degrees of freedom 
# Null hypothesis probability =   6.348998e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.590126 ( -0.15828  0.157507 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.02011e-08 ( -1.19487e-08  1.35105e-08 ) ergs/cm2
 
Band function
Time interval is from    1.444 sec. to    2.444 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.217495   ( -1.33374   0.339386 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 56.4582      ( -15.2649 50.4507 )
Norm@50keV   : 4.53472E-02    ( -0.0453132   2.38932 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.79 using 59 PHA bins.
# Reduced chi-squared =         0.9416 for     55 degrees of freedom 
# Null hypothesis probability =   5.980504e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.01805e-08 ( -4.01735e-08  -1.19335e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.3899  (-2.91268  3.92429)
R^2/D10^2   : 0.112011  (-0.0685857   0.158646)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.37 using 59 PHA bins.
# Reduced chi-squared =         0.9188 for     57 degrees of freedom 
# Null hypothesis probability =   6.491778e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.255e-09   2.069e-09
25- 50  1.512e-08   6.622e-09
50-150  1.744e-08   9.424e-09
15-150  3.681e-08   1.512e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 155.877       (-91.015      -151.888)
Norm        : 2.56692       (-0.660214     0.935719)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.56 using 59 PHA bins.
# Reduced chi-squared =         0.9396 for     57 degrees of freedom 
# Null hypothesis probability =   6.050419e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.571e-09   3.773e-09
25- 50  1.225e-08   7.075e-09
50-150  2.455e-08   1.557e-08
15-150  4.337e-08   2.549e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.56643        (-4.54341      -4.54341)
R1^2/D10^2  : 1.37780        (-1.3928      -1.3928)
kT2 [keV]   : 14.9758        (-4.14306      -14.9696)
R2^2/D10^2  : 6.86641E-02    (-0.0687834   0.17244)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.71 using 59 PHA bins.
# Reduced chi-squared =         0.9401 for     55 degrees of freedom 
# Null hypothesis probability =   6.012646e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.523e-09   2.983e-09
25- 50  1.399e-08   8.030e-09
50-150  1.955e-08   1.169e-08
15-150  3.906e-08   2.223e-08
Plot creation:
Wed Mar 11 14:00:17 EDT 2015