batgrbproduct Analysis for Trigger=622006

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Dec 22 20:31:48 EST 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger622006/batgroup_hand_proc
======================================================================

  Trigger: 00622006      Segment: 000

  BAT Trigger Time: 440842043.904   [s; MET]
      Trigger Stop: 440842044.928   [s; MET]
               UTC: 2014-12-21T08:07:10.958720    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 198.269160599318   Dec: 8.21006046919977  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    14.98
     Image Trigger?:     NO
     Rate S/N Ratio:     41.194659848092  [ if not an image trigger ]
     Image S/N Ratio:    14.98

  Flight Position:   [ source = BAT ]
    RA: 198.269160599318   Dec: 8.21006046919977  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 198.28110214492   Dec: 8.19831568570567  [deg; J2000]  
        { 13h 13m 07.5s , +08d 11' 53.9" }
         +/- 1.03905321944029 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.342493264429319 [arcmin] (formal 1-sigma fit error)
    SNR: 28.7971895631093
 
  Angular difference between Flight and Ground position is 0.999746 arcmin
 
  Partial Coding Fraction: 0.7890625    [ including projection effects ]

  Duration
     T90: 33.1719999313354 +/- 4.10187130304949
        Measured from: -17.4959999918938
                   to: 15.6759999394417     [s; relative to TRIGTIME]
     T50: 12.1919999718666 +/- 3.20888827249804
        Measured from: -1.54799997806549
                   to: 10.6439999938011     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0959999561309814     
                   to: 0.904000043869019     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -24.1119999885559     
                   to: 20.3320000171661     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.191030   1.382259   0.802514   0.182887
           0.051235   0.051698   0.045221   0.038220 [error]
 Peak      0.083086   0.142503   0.125286   0.042971
           0.009142   0.010028   0.009363   0.007181 [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 3.77e-07 5.69e-07 6.44e-07 1.38e-06 2.00e-06 2.97e-06   erg/cm2
              Error 2.90e-08 2.67e-08 4.50e-08 2.04e-07 1.04e-07 2.42e-07   erg/cm2
Peak flux Power-law 8.08e-01 9.65e-01 8.34e-01 1.23e+00 3.04e+00 3.84e+00   ph/cm2/s
              Error 1.20e-01 8.61e-02 7.49e-02 2.37e-01 2.38e-01 3.12e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.50e-07 5.97e-07 6.48e-07 6.56e-07 1.91e-06 2.25e-06   erg/cm2
              Error 3.53e-08 3.37e-08 4.84e-08 3.79e-07 1.24e-07 3.99e-07   erg/cm2
Peak flux Cutoff-PL 7.92e-01 9.72e-01 8.42e-01 1.10e+00 3.03e+00 3.71e+00   ph/cm2/s
              Error 1.40e-01 9.41e-02 8.57e-02 3.66e-01 1.85e-01 4.85e-01   ph/cm2/s
 
Fluence        Band 3.38e-07 6.04e-07 6.32e-07 9.67e-07 1.92e-06 2.55e-06   erg/cm2
              Error 3.65e-08 3.63e-08 3.74e-08 -------- 1.18e-07 --------   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    1.822    0.088    -      -           4.90e-03 2.50e-04   62.440 57
CPL   1.329    0.400      63.4   33.2      8.92e-03 4.55e-03   57.460 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    1.212    0.136    -      -           2.59e-02 1.97e-03   60.310 57
CPL   1.121    0.362     523.5    0.0      2.86e-02 1.40e-02   60.220 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: 36.096000 sec.
T50 in the 50-300 keV band: 6.848000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   44.444  -24.112   20.332
T90    33.172  -17.496   15.676
T50    12.192   -1.548   10.644
Peak    1.000   -0.096    0.904

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  198.2811     8.1983   0.0067    26.1414    16.6023         3.4715441     28.797 TRIG_00622006                 
 
Foreground time interval of the image:
-24.112  16.397 (delta_t =  40.509 [sec])
Background time interval of the image:
-66.603 -24.112 (delta_t =  42.491 [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  -24.112 sec. to   20.332 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.82234     ( -0.0873237   0.0886508 )
Norm@50keV  : 4.90264E-03    ( -0.000250481   0.000248759 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.44 using 59 PHA bins.
# Reduced chi-squared =          1.096 for     57 degrees of freedom 
# Null hypothesis probability =   2.889410e-01
 
Photon flux (15-150 keV)    in 44.44 sec: 0.681515 ( -0.0327083  0.0327684 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.00439e-06 ( -1.03691e-07  1.04323e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -24.112 sec. to   20.332 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32902     ( -0.41991   0.380744 )
Epeak [keV] : 63.3751      ( -11.4569 54.898 )
Norm@50keV  : 8.92491E-03    ( -0.0032461   0.00584817 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.46 using 59 PHA bins.
# Reduced chi-squared =          1.026 for     56 degrees of freedom 
# Null hypothesis probability =   4.208468e-01
 
Photon flux (15-150 keV)    in 44.44 sec: 0.661614 ( -0.035939  0.035934 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.9139e-06 ( -1.24014e-07  1.24788e-07 ) ergs/cm2
 
Band function
Time interval is from  -24.112 sec. to   20.332 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.09747   ( -0.492627   0.720896 )
beta        : -2.15896    ( 2.16892   0.264617 )
Epeak [keV] : 53.5945      ( -15.0061 27.9572 )
Norm@50keV   : 1.22855E-02    ( -0.00593712   0.0226946 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.69 using 59 PHA bins.
# Reduced chi-squared =          1.013 for     55 degrees of freedom 
# Null hypothesis probability =   4.484799e-01
 
Photon flux (15-150 keV)    in 44.44 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.91636e-06 ( -1.91605e-06  -1.18433e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.1637  (  )
R^2/D10^2   : 0.151402  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         130.77 using 59 PHA bins.
# Reduced chi-squared =         2.2941 for     57 degrees of freedom 
# Null hypothesis probability =   1.001354e-07
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.108e-07   1.769e-08
25- 50  6.739e-07   3.822e-08
50-150  6.049e-07   6.444e-08
15-150  1.490e-06   7.999e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 98.6547       (-16.1352      21.7684)
Norm        : 2.98923       (-0.204715     0.226266)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.40 using 59 PHA bins.
# Reduced chi-squared =          1.007 for     57 degrees of freedom 
# Null hypothesis probability =   4.603196e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.472e-07   2.969e-08
25- 50  5.987e-07   3.422e-08
50-150  9.627e-07   2.675e-07
15-150  1.909e-06   2.802e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.85080        (-1.47571      2.73745)
R1^2/D10^2  : 1.35702        (-0.90575      2.70079)
kT2 [keV]   : 18.5980        (-3.15863      13.2521)
R2^2/D10^2  : 2.38662E-02    (-0.0201324   0.0280453)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.35 using 59 PHA bins.
# Reduced chi-squared =          1.206 for     55 degrees of freedom 
# Null hypothesis probability =   1.405043e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.370e-07   6.935e-08
25- 50  5.936e-07   1.089e-07
50-150  8.916e-07   1.920e-07
15-150  1.822e-06   3.555e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.096 sec. to    0.904 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.21182     ( -0.135931   0.135092 )
Norm@50keV  : 2.58629E-02    ( -0.00197394   0.00197378 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.31 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     57 degrees of freedom 
# Null hypothesis probability =   3.571500e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.04092 ( -0.238156  0.238444 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.61523e-07 ( -2.2382e-08  2.25092e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.096 sec. to    0.904 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.12129     ( -0.563438   0.159579 )
Epeak [keV] : 523.506      ( -523.604 -523.604 )
Norm@50keV  : 2.85683E-02    ( -0.00441978   0.0235781 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.22 using 59 PHA bins.
# Reduced chi-squared =          1.075 for     56 degrees of freedom 
# Null hypothesis probability =   3.257475e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.02938 ( -0.24688  0.12277 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.60196e-07 ( -2.4196e-08  2.3535e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.096 sec. to    0.904 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 8.04420E-02   ( 0.963429   5.95653 )
beta        : -1.26987    ( 1.31092   0.223692 )
Epeak [keV] : 48.7637      ( -119.53 -119.53 )
Norm@50keV   : 0.188852    ( -0.155204   1.28315e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.83 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     55 degrees of freedom 
# Null hypothesis probability =   3.046957e-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]    : 18.2045  (-1.8261  2.1096)
R^2/D10^2   : 0.189079  (-0.0576046   0.0797084)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          94.95 using 59 PHA bins.
# Reduced chi-squared =          1.666 for     57 degrees of freedom 
# Null hypothesis probability =   1.196478e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.250e-08   1.885e-09
25- 50  5.830e-08   6.410e-09
50-150  1.406e-07   2.045e-08
15-150  2.114e-07   2.055e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 12.5320       (-0.974724     0.974652)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.61 using 59 PHA bins.
# Reduced chi-squared =          1.362 for     57 degrees of freedom 
# Null hypothesis probability =   3.611921e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.120e-08   2.845e-09
25- 50  6.002e-08   1.056e-08
50-150  1.316e-07   4.694e-08
15-150  2.228e-07   5.520e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.47072        (-3.00548      3.51912)
R1^2/D10^2  : 1.06854        (-0.593442      1.39782)
kT2 [keV]   : 40.7521        (-14.9662      -41.3016)
R2^2/D10^2  : 1.13029E-02    (-0.009631   0.036733)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.88 using 59 PHA bins.
# Reduced chi-squared =          1.125 for     55 degrees of freedom 
# Null hypothesis probability =   2.440115e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.150e-08   6.640e-09
25- 50  6.031e-08   1.760e-08
50-150  1.798e-07   8.365e-08
15-150  2.616e-07   1.055e-07
Plot creation:
Mon Dec 22 20:40:57 EST 2014