batgrbproduct Analysis for Trigger=704155

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jul 13 18:09:28 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger704155/GCN5_download_cron
======================================================================

  Trigger: 00704155      Segment: 000

  BAT Trigger Time: 490046032.576   [s; MET]
      Trigger Stop: 490046033.6   [s; MET]
               UTC: 2016-07-12T19:53:36.025560    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 304.149318030523   Dec: -26.9813085140697  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.67
     Image Trigger?:     NO
     Rate S/N Ratio:     39.560080889705  [ if not an image trigger ]
     Image S/N Ratio:    7.67

  Flight Position:   [ source = BAT ]
    RA: 304.149318030523   Dec: -26.9813085140697  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 304.166295431457   Dec: -26.9646631301557  [deg; J2000]  
        { 20h 16m 39.9s , -26d 57' 52.8" }
         +/- 1.31715480829849 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.596471577411054 [arcmin] (formal 1-sigma fit error)
    SNR: 20.5214779271485
 
  Angular difference between Flight and Ground position is 1.349672 arcmin
 
  Partial Coding Fraction: 0.2402344    [ including projection effects ]

  Duration
     T90: 44.5600000023842 +/- 6.37439379528038
        Measured from: -3.33599984645844
                   to: 41.2240001559258     [s; relative to TRIGTIME]
     T50: 21.1360000371933 +/- 2.4899413504438
        Measured from: 3.6560001373291
                   to: 24.7920001745224     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.0600000023841858     
                   to: 1.06000000238419     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -8.59999996423721     
                   to: 45.4640000462532     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.822888   1.239179   1.198082   0.500749
           0.083963   0.088562   0.079506   0.066496 [error]
 Peak      0.044363   0.086383   0.133958   0.063134
           0.012804   0.014810   0.015715   0.013248 [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 2.42e-07 5.42e-07 9.55e-07 3.94e-06 2.61e-06 5.68e-06   erg/cm2
              Error 3.52e-08 4.59e-08 7.55e-08 7.35e-07 1.93e-07 7.69e-07   erg/cm2
Peak flux Power-law 3.95e-01 6.41e-01 7.87e-01 1.90e+00 2.36e+00 3.73e+00   ph/cm2/s
              Error 1.36e-01 1.34e-01 1.13e-01 6.27e-01 3.51e-01 6.39e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.43e-07 5.43e-07 9.55e-07 3.90e-06 2.61e-06 5.64e-06   erg/cm2
              Error 3.53e-08 4.51e-08 7.56e-08 1.01e-06 1.92e-07 1.01e-06   erg/cm2
Peak flux Cutoff-PL 3.94e-01 6.41e-01 7.87e-01 1.89e+00 2.36e+00 3.71e+00   ph/cm2/s
              Error 1.64e-01 1.35e-01 1.35e-01 8.93e-01 3.53e-01 9.03e-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    1.182    0.128    -      -           4.73e-03 3.28e-04   50.000 57
CPL   1.177    0.221    10000.0    0.0      4.75e-03 3.27e-04   50.040 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.704    0.268    -      -           2.05e-02 3.20e-03   45.950 57
CPL   0.696    0.271    9997.8    0.0      2.06e-02 1.83e-02   45.950 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: 23.232000 sec.
T50 in the 50-300 keV band: 14.016000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   54.064   -8.600   45.464
T90    44.560   -3.336   41.224
T50    21.136    3.656   24.792
Peak    1.000    0.060    1.060

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  304.1663 -26.9647 0.0094   34.1   83.0       4.0437    20.5  TRIG_00704155       
------------------------------------------
 
Foreground time interval of the image:
 -8.600  45.464 (delta_t =  54.064 [sec])
Background time interval of the image:
-239.576  -8.600 (delta_t = 230.976 [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   -8.600 sec. to   45.464 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18158     ( -0.129024   0.126849 )
Norm@50keV  : 4.72945E-03    ( -0.000328688   0.000327739 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.00 using 59 PHA bins.
# Reduced chi-squared =         0.8772 for     57 degrees of freedom 
# Null hypothesis probability =   7.328104e-01
 
Photon flux (15-150 keV)    in 54.06 sec: 0.553744 ( -0.0406112  0.0408374 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.60763e-06 ( -1.92434e-07  1.93532e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -8.600 sec. to   45.464 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.17704     ( -0.287307   0.155313 )
Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
Norm@50keV  : 4.75245E-03    ( -0.000327066   0.000326549 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.04 using 59 PHA bins.
# Reduced chi-squared =         0.8935 for     56 degrees of freedom 
# Null hypothesis probability =   6.989281e-01
 
Photon flux (15-150 keV)    in 54.06 sec: 0.554158 ( -0.041144  0.040206 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.6066e-06 ( -1.9127e-07  1.92816e-07 ) ergs/cm2
 
Band function
Time interval is from   -8.600 sec. to   45.464 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.921952   ( 0.922672   0.922672 )
beta        : -1.18155    ( 1.18155   0.129042 )
Epeak [keV] : 56.5165      ( -55.7165 -55.7165 )
Norm@50keV   : 8.59525E-03    ( -0.00359237   332282 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.00 using 59 PHA bins.
# Reduced chi-squared =         0.9091 for     55 degrees of freedom 
# Null hypothesis probability =   6.656082e-01
 
Photon flux (15-150 keV)    in 54.06 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]    : 20.7738  (-2.0551  2.40792)
R^2/D10^2   : 2.20363E-02  (-0.00659431   0.00906134)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         107.42 using 59 PHA bins.
# Reduced chi-squared =         1.8846 for     57 degrees of freedom 
# Null hypothesis probability =   6.138452e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.757e-08   1.514e-08
25- 50  4.981e-07   5.625e-08
50-150  1.601e-06   1.843e-07
15-150  2.196e-06   2.054e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-13.6096      -200)
Norm        : 2.33486       (-0.164542     0.164542)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.97 using 59 PHA bins.
# Reduced chi-squared =          1.368 for     57 degrees of freedom 
# Null hypothesis probability =   3.398764e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.142e-07   2.419e-08
25- 50  6.044e-07   6.101e-08
50-150  1.326e-06   3.603e-07
15-150  2.244e-06   4.500e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.31250        (-2.19047      2.55135)
R1^2/D10^2  : 0.291468        (-0.162297      0.528726)
kT2 [keV]   : 40.3173        (-10.4904      31.034)
R2^2/D10^2  : 2.37090E-03    (-0.00180937   0.0036703)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.75 using 59 PHA bins.
# Reduced chi-squared =         0.9590 for     55 degrees of freedom 
# Null hypothesis probability =   5.612151e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.290e-07   7.158e-08
25- 50  5.607e-07   1.577e-07
50-150  1.876e-06   7.559e-07
15-150  2.666e-06   9.444e-07

Peak spectrum fit

Power-law model
Time interval is from    0.060 sec. to    1.060 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.704204     ( -0.277461   0.258766 )
Norm@50keV  : 2.04546E-02    ( -0.00324659   0.00315682 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.95 using 59 PHA bins.
# Reduced chi-squared =         0.8062 for     57 degrees of freedom 
# Null hypothesis probability =   8.524358e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.36359 ( -0.350229  0.352064 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.49203e-07 ( -3.7459e-08  3.762e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.060 sec. to    1.060 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.695993     ( -0.280186   0.2609 )
Epeak [keV] : 9997.76      ( -9997.46 -9997.46 )
Norm@50keV  : 2.06155E-02    ( -0.00304594   0.0334694 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.95 using 59 PHA bins.
# Reduced chi-squared =         0.8205 for     56 degrees of freedom 
# Null hypothesis probability =   8.287514e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.36300 ( -0.35477  0.35085 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.49085e-07 ( -3.7709e-08  1.8941e-08 ) ergs/cm2
 
Band function
Time interval is from    0.060 sec. to    1.060 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.875799   ( 0.875799   0.875799 )
beta        : -0.704204    ( -0.258538   0.277463 )
Epeak [keV] : 14.2584      ( -14.2584 -14.2584 )
Norm@50keV   : 3.01293E-02    ( -0.0127262   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.95 using 59 PHA bins.
# Reduced chi-squared =         0.8355 for     55 degrees of freedom 
# Null hypothesis probability =   8.025458e-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]    : 30.1079  (-5.7614  8.41747)
R^2/D10^2   : 3.59483E-02  (-0.0177494   0.0305566)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.33 using 59 PHA bins.
# Reduced chi-squared =         0.9181 for     57 degrees of freedom 
# Null hypothesis probability =   6.504758e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.087e-09   1.510e-09
25- 50  3.142e-08   8.870e-09
50-150  2.009e-07   5.260e-08
15-150  2.374e-07   5.365e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-29.4261      -200)
Norm        : 9.16323       (-1.45357     1.45357)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.22 using 59 PHA bins.
# Reduced chi-squared =          1.302 for     57 degrees of freedom 
# Null hypothesis probability =   6.234846e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.281e-08   1.320e-08
25- 50  4.387e-08   2.487e-08
50-150  9.622e-08   5.390e-08
15-150  1.629e-07   9.250e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.64513        (-2.81785      6.50498)
R1^2/D10^2  : 1.64686        (-1.45713      12.5416)
kT2 [keV]   : 39.3496        (-10.3678      34.4819)
R2^2/D10^2  : 1.58328E-02    (-0.0126058   0.0220726)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.64 using 59 PHA bins.
# Reduced chi-squared =         0.8117 for     55 degrees of freedom 
# Null hypothesis probability =   8.395115e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.423e-08   7.985e-09
25- 50  3.536e-08   1.854e-08
50-150  2.053e-07   1.139e-07
15-150  2.549e-07   1.282e-07
Plot creation:
Wed Jul 13 18:18:40 EDT 2016