batgrbproduct Analysis for Trigger=624606

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan 11 14:31:38 EST 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger624606/GCN5_download_cron
======================================================================

  Trigger: 00624606      Segment: 000

  BAT Trigger Time: 442620523.072   [s; MET]
      Trigger Stop: 442620524.096   [s; MET]
               UTC: 2015-01-10T22:08:30.037560    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 289.359743492699   Dec: 32.5222624222269  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.76
     Image Trigger?:     NO
     Rate S/N Ratio:     15.4272486205415  [ if not an image trigger ]
     Image S/N Ratio:    10.76

  Flight Position:   [ source = BAT ]
    RA: 289.359743492699   Dec: 32.5222624222269  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 289.373057499747   Dec: 32.528908670621  [deg; J2000]  
        { 19h 17m 29.5s , +32d 31' 44.1" }
         +/- 1.22767827477209 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.497801233743322 [arcmin] (formal 1-sigma fit error)
    SNR: 22.6910560076557
 
  Angular difference between Flight and Ground position is 0.782740 arcmin
 
  Partial Coding Fraction: 0.9609375    [ including projection effects ]

  Duration
     T90: 10.5919999480247 +/- 0.945126467692156
        Measured from: -7.25199991464615
                   to: 3.3400000333786     [s; relative to TRIGTIME]
     T50: 6.39599996805191 +/- 1.40137646462386
        Measured from: -4.15599989891052
                   to: 2.24000006914139     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.99599999189377     
                   to: 2.99599999189377     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -7.93999999761581     
                   to: 3.77199995517731     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.319675   0.370995   0.203899   0.045080
           0.022234   0.022605   0.018956   0.015155 [error]
 Peak      0.043140   0.068660   0.045517   0.025236
           0.006657   0.007234   0.006357   0.004902 [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 9.79e-08 1.43e-07 1.55e-07 3.13e-07 4.91e-07 7.08e-07   erg/cm2
              Error 1.05e-08 1.02e-08 1.80e-08 7.35e-08 4.15e-08 9.15e-08   erg/cm2
Peak flux Power-law 4.19e-01 4.50e-01 3.43e-01 4.26e-01 1.37e+00 1.64e+00   ph/cm2/s
              Error 8.41e-02 5.57e-02 5.09e-02 1.31e-01 1.60e-01 1.99e-01   ph/cm2/s
 
Fluence   Cutoff-PL 9.20e-08 1.52e-07 1.53e-07 1.21e-07 4.63e-07 5.18e-07   erg/cm2
              Error 1.20e-08 1.37e-08 2.01e-08 1.16e-07 4.81e-08 1.27e-07   erg/cm2
Peak flux Cutoff-PL 4.22e-01 4.50e-01 3.42e-01 4.19e-01 1.37e+00 1.63e+00   ph/cm2/s
              Error 8.41e-02 5.97e-02 5.16e-02 -------- 1.60e-01 2.44e-01   ph/cm2/s
 
Fluence        Band 9.08e-08 1.52e-07 1.50e-07 1.75e-07 4.64e-07 5.70e-07   erg/cm2
              Error -------- -------- 2.35e-08 -------- -------- --------   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    1.883    0.133    -      -           4.57e-03 3.86e-04   49.040 57
CPL   1.294    0.584      52.1   46.1      9.76e-03 8.40e-03   45.580 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.392    0.203    -      -           1.13e-02 1.34e-03   44.250 57
CPL   1.361    0.000     991.3    0.0      1.17e-02 0.00e+00   44.300 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: 2.176000 sec.
T50 in the 50-300 keV band: 1.152000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   11.712   -7.940    3.772
T90    10.592   -7.252    3.340
T50     6.396   -4.156    2.240
Peak    1.000    1.996    2.996

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  289.3731 +32.5289 0.0085   13.0   25.8       0.9323    22.7  TRIG_00624606       
------------------------------------------
 
Foreground time interval of the image:
 -7.940   3.772 (delta_t =  11.712 [sec])
Background time interval of the image:
-239.072  -7.940 (delta_t = 231.132 [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   -7.940 sec. to    3.772 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.88279     ( -0.131424   0.135379 )
Norm@50keV  : 4.56511E-03    ( -0.00038853   0.000383118 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.04 using 59 PHA bins.
# Reduced chi-squared =         0.8604 for     57 degrees of freedom 
# Null hypothesis probability =   7.641692e-01
 
Photon flux (15-150 keV)    in 11.71 sec: 0.650407 ( -0.0468698  0.0468971 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.91432e-07 ( -4.12059e-08  4.1733e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -7.940 sec. to    3.772 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29383     ( -0.624507   0.542507 )
Epeak [keV] : 52.0802      ( -11.4939 80.6874 )
Norm@50keV  : 9.75555E-03    ( -0.00482569   0.0119689 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.58 using 59 PHA bins.
# Reduced chi-squared =         0.8138 for     56 degrees of freedom 
# Null hypothesis probability =   8.388451e-01
 
Photon flux (15-150 keV)    in 11.71 sec: 0.633353 ( -0.049281  0.04929 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.63057e-07 ( -4.74407e-08  4.87429e-08 ) ergs/cm2
 
Band function
Time interval is from   -7.940 sec. to    3.772 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.29384   ( 1.38705   0.346919 )
beta        : -10.00000    ( 10   20 )
Epeak [keV] : 52.0701      ( -11.2898 80.4998 )
Norm@50keV   : 9.75421E-03    ( -0.000693521   0.0119986 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.58 using 59 PHA bins.
# Reduced chi-squared =         0.8286 for     55 degrees of freedom 
# Null hypothesis probability =   8.135944e-01
 
Photon flux (15-150 keV)    in 11.71 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.64131e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.8084  (-0.935365  1.03347)
R^2/D10^2   : 0.225572  (-0.0658399   0.0923312)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.40 using 59 PHA bins.
# Reduced chi-squared =          1.411 for     57 degrees of freedom 
# Null hypothesis probability =   2.228231e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.424e-08   8.226e-09
25- 50  1.775e-07   1.511e-08
50-150  1.156e-07   1.986e-08
15-150  3.573e-07   3.009e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 82.2333       (-18.0444      27.1804)
Norm        : 3.02208       (-0.321333     0.373296)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.54 using 59 PHA bins.
# Reduced chi-squared =         0.7989 for     57 degrees of freedom 
# Null hypothesis probability =   8.625230e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.198e-08   9.965e-09
25- 50  1.524e-07   1.153e-08
50-150  2.191e-07   7.436e-08
15-150  4.635e-07   7.108e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.13452        (-1.29517      1.4311)
R1^2/D10^2  : 1.26291        (-0.630143      1.6749)
kT2 [keV]   : 19.7164        (-4.08039      7.61522)
R2^2/D10^2  : 1.65705E-02    (-0.0120243   0.0270927)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.79 using 59 PHA bins.
# Reduced chi-squared =         0.8143 for     55 degrees of freedom 
# Null hypothesis probability =   8.356457e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.091e-08   3.490e-08
25- 50  1.520e-07   4.232e-08
50-150  2.155e-07   1.098e-07
15-150  4.583e-07   1.425e-07

Peak spectrum fit

Power-law model
Time interval is from    1.996 sec. to    2.996 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.39167     ( -0.202177   0.203109 )
Norm@50keV  : 1.12965E-02    ( -0.00134009   0.00133125 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.25 using 59 PHA bins.
# Reduced chi-squared =         0.7764 for     57 degrees of freedom 
# Null hypothesis probability =   8.911853e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.37313 ( -0.159607  0.159734 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.09342e-07 ( -1.45704e-08  1.47498e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.996 sec. to    2.996 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.36112     (     )
Epeak [keV] : 991.293      (   )
Norm@50keV  : 1.17318E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.30 using 59 PHA bins.
# Reduced chi-squared =         0.7911 for     56 degrees of freedom 
# Null hypothesis probability =   8.705600e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.37329 ( -0.16017  0.15926 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.09295e-07 ( -1.52843e-08  1.4608e-08 ) ergs/cm2
 
Band function
Time interval is from    1.996 sec. to    2.996 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.67392   ( -4.67392   -4.67392 )
beta        : -1.51940    ( -0.2633   0.241036 )
Epeak [keV] : 26.8898      ( -26.8898 5.78625 )
Norm@50keV   : 421.039    ( -48.221   4.50094e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.78 using 59 PHA bins.
# Reduced chi-squared =         0.7779 for     55 degrees of freedom 
# Null hypothesis probability =   8.848238e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.0718e-07 ( -1.07173e-07  -1.50555e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.3141  (-2.15512  2.6857)
R^2/D10^2   : 0.184345  (-0.0825186   0.141227)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.84 using 59 PHA bins.
# Reduced chi-squared =          1.138 for     57 degrees of freedom 
# Null hypothesis probability =   2.222134e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.960e-09   1.701e-09
25- 50  3.026e-08   5.235e-09
50-150  4.128e-08   1.055e-08
15-150  7.950e-08   1.294e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 5.60421       (-0.651185     0.651186)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.31 using 59 PHA bins.
# Reduced chi-squared =         0.8125 for     57 degrees of freedom 
# Null hypothesis probability =   8.432495e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.402e-08   7.850e-09
25- 50  2.697e-08   1.480e-08
50-150  5.916e-08   3.260e-08
15-150  1.002e-07   5.490e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.0999        (-2.90163      2.18529)
R1^2/D10^2  : 0.526809        (-0.291005      0.514213)
kT2 [keV]   : 198.460        (      )
R2^2/D10^2  : 2.07017E-04    (-6.7e-05   0.00893633)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.38 using 59 PHA bins.
#Fit statistic : Chi-Squared =          41.46 using 59 PHA bins.
# Reduced chi-squared =         0.7705 for     55 degrees of freedom 
# Reduced chi-squared =         0.7539 for     55 degrees of freedom 
# Null hypothesis probability =   8.934498e-01
# Null hypothesis probability =   9.114666e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.200e-08   5.324e-09
25- 50  2.841e-08   1.280e-08
50-150  6.709e-08   3.743e-08
15-150  1.075e-07   4.844e-08
Plot creation:
Sun Jan 11 14:35:08 EST 2015