batgrbproduct Analysis for Trigger=605700

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jul 20 21:38:29 EDT 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/trigger605700
======================================================================

  Trigger: 00605700      Segment: 000

  BAT Trigger Time: 427495787.968   [s; MET]
      Trigger Stop: 427495796.16   [s; MET]
               UTC: 2014-07-19T20:49:35.681860    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 39.7382664338233   Dec: -2.37796842981903  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.91
     Image Trigger?:     NO
     Rate S/N Ratio:     10.0995049383621  [ if not an image trigger ]
     Image S/N Ratio:    10.91

  Flight Position:   [ source = BAT ]
    RA: 39.7382664338233   Dec: -2.37796842981903  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 39.7308622511569   Dec: -2.38430799470981  [deg; J2000]  
        { 02h 38m 55.4s , -02d 23' 03.5" }
         +/- 1.66674923640175 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.80814915062591 [arcmin] (formal 1-sigma fit error)
    SNR: 14.6609076733293
 
  Angular difference between Flight and Ground position is 0.584553 arcmin
 
  Partial Coding Fraction: 0.4257812    [ including projection effects ]

  Duration
     T90: 53 +/- 13.4629120178363
        Measured from: -12.9679999947548
                   to: 40.0320000052452     [s; relative to TRIGTIME]
     T50: 17 +/- 5.8309518948453
        Measured from: -2.96799999475479
                   to: 14.0320000052452     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -4.96799999475479     
                   to: -3.96799999475479     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -16.9679999947548     
                   to: 49.0320000052452     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.583706   0.781805   0.511492   0.046326
           0.070482   0.070508   0.061307   0.051354 [error]
 Peak      0.026383   0.023898   0.026446   0.007507
           0.008533   0.008785   0.007698   0.006581 [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 2.20e-07 3.47e-07 4.12e-07 9.50e-07 1.26e-06 1.93e-06   erg/cm2
              Error 3.58e-08 3.65e-08 5.99e-08 2.82e-07 1.44e-07 3.38e-07   erg/cm2
Peak flux Power-law 1.91e-01 2.30e-01 2.01e-01 3.00e-01 7.27e-01 9.22e-01   ph/cm2/s
              Error 1.23e-01 8.91e-02 6.08e-02 2.17e-01 2.30e-01 2.61e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.00e-07 3.78e-07 4.23e-07 1.19e-06 0.00e+00 0.00e+00   erg/cm2
              Error 4.17e-08 4.89e-08 6.74e-08 1.58e-07 0.00e+00 0.00e+00   erg/cm2
Peak flux Cutoff-PL 2.00e-01 7.36e-01 9.24e-01 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 2.31e-01 2.58e-01 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
 
Fluence        Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.753    0.176    -      -           2.06e-03 2.29e-04   62.790 57
CPL   1.012    0.825      62.5  345.2      5.12e-03 6.62e-03   59.950 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    1.197    0.573    -      -           6.20e-03 1.81e-03   57.740 57
CPL   1.213    0.642    9999.4    0.0      6.24e-03 7.66e-03   57.750 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: 29.376000 sec.
T50 in the 50-300 keV band: 13.696000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   66.000  -16.968   49.032
T90    53.000  -12.968   40.032
T50    17.000   -2.968   14.032
Peak    1.000   -4.968   -3.968

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
   39.7309    -2.3843   0.0131    43.6721   -31.5651         2.1961791     14.661 TRIG_00605700                 
 
Foreground time interval of the image:
-16.968  49.032 (delta_t =  66.000 [sec])
Background time interval of the image:
-522.867 -506.088 (delta_t =  16.779 [sec])
-239.968 -19.510 (delta_t = 220.458 [sec])
-17.968 -16.968 (delta_t =   1.000 [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  -16.968 sec. to   49.032 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.75278     ( -0.174173   0.178663 )
Norm@50keV  : 2.06259E-03    ( -0.00022997   0.000227502 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.79 using 59 PHA bins.
# Reduced chi-squared =          1.102 for     57 degrees of freedom 
# Null hypothesis probability =   2.785652e-01
 
Photon flux (15-150 keV)    in 66 sec: 0.279183 ( -0.0296551  0.0297085 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.25594e-06 ( -1.43423e-07  1.44635e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -16.968 sec. to   49.032 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.01225     ( -0.904032   0.746471 )
Epeak [keV] : 62.4510      ( -14.828 675.522 )
Norm@50keV  : 5.12421E-03    ( -0.00303357   0.0102061 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.95 using 59 PHA bins.
# Reduced chi-squared =          1.070 for     56 degrees of freedom 
# Null hypothesis probability =   3.346463e-01
 
Photon flux (15-150 keV)    in 66 sec: 0.271676 ( -0.03072  0.0307 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.19171e-06 ( -1.56948e-07  1.59093e-07 ) ergs/cm2
 
Band function
Time interval is from  -16.968 sec. to   49.032 sec.
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.6457  (-1.44219  1.62529)
R^2/D10^2   : 5.68227E-02  (-0.0206619   0.0322103)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.06 using 59 PHA bins.
# Reduced chi-squared =          1.317 for     57 degrees of freedom 
# Null hypothesis probability =   5.466648e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.272e-07   2.534e-08
25- 50  4.250e-07   5.894e-08
50-150  4.226e-07   9.247e-08
15-150  9.748e-07   1.346e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 117.002       (-37.9009      66.0959)
Norm        : 1.18596       (-0.091677     0.202)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.31 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     57 degrees of freedom 
# Null hypothesis probability =   3.570886e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.041e-07   2.854e-08
25- 50  3.635e-07   5.240e-08
50-150  6.405e-07   2.790e-07
15-150  1.208e-06   3.359e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.71869        (-2.64206      3.5477)
R1^2/D10^2  : 0.349868        (-0.244511      1.71479)
kT2 [keV]   : 20.6596        (-5.82874      41.9056)
R2^2/D10^2  : 6.58906E-03    (-0.0063995   0.0133005)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.47 using 59 PHA bins.
# Reduced chi-squared =          1.100 for     55 degrees of freedom 
# Null hypothesis probability =   2.847649e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.955e-07   1.011e-07
25- 50  3.819e-07   1.779e-07
50-150  5.995e-07   3.396e-07
15-150  1.177e-06   5.943e-07

Peak spectrum fit

Power-law model
Time interval is from   -4.968 sec. to   -3.968 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19719     ( -0.609517   0.536403 )
Norm@50keV  : 6.19983E-03    ( -0.00185337   0.00177652 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.74 using 59 PHA bins.
# Reduced chi-squared =          1.013 for     57 degrees of freedom 
# Null hypothesis probability =   4.476170e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.727456 ( -0.228475  0.231226 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.29501e-08 ( -1.8285e-08  1.83371e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -4.968 sec. to   -3.968 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.21298     ( -0.762188   0.52153 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 6.24415E-03    ( -0.0018659   0.013451 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.75 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     56 degrees of freedom 
# Null hypothesis probability =   4.102334e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.736199 ( -0.238205  0.222954 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   -4.968 sec. to   -3.968 sec.
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 26.5340  (-10.428  24.3507)
R^2/D10^2   : 1.27650E-02  (-0.0126529   0.0514134)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.17 using 59 PHA bins.
# Reduced chi-squared =          1.108 for     57 degrees of freedom 
# Null hypothesis probability =   2.675572e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.511e-09   9.845e-10
25- 50  8.830e-09   5.560e-09
50-150  4.560e-08   2.869e-08
15-150  5.594e-08   3.519e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-100.399      -199.363)
Norm        : 3.12779       (-0.900555     0.900424)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.69 using 59 PHA bins.
# Reduced chi-squared =          1.047 for     57 degrees of freedom 
# Null hypothesis probability =   3.783055e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.789e-09   4.949e-09
25- 50  1.498e-08   9.150e-09
50-150  3.286e-08   2.047e-08
15-150  5.563e-08   3.242e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.08850        (-2.5222      5.23346)
R1^2/D10^2  : 1.51205        (-1.38018      7.15185)
kT2 [keV]   : 44.2865        (-20.4781      -44.2963)
R2^2/D10^2  : 2.60209E-03    (-0.00248901   0.0137684)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.92 using 59 PHA bins.
# Reduced chi-squared =          1.017 for     55 degrees of freedom 
# Null hypothesis probability =   4.400583e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.215e-09   4.883e-09
25- 50  1.211e-08   7.125e-09
50-150  4.694e-08   2.585e-08
15-150  6.727e-08   3.526e-08
Plot creation:
Sun Jul 20 21:46:35 EDT 2014