batgrbproduct Analysis for Trigger=612804

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Sep 17 10:50:22 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger612804/GCN5_download_cron
======================================================================

  Trigger: 00612804      Segment: 000

  BAT Trigger Time: 432557040   [s; MET]
      Trigger Stop: 432557104   [s; MET]
               UTC: 2014-09-16T10:43:47.465980    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 40.4046851109949   Dec: -39.7108825055143  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.87
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.87

  Flight Position:   [ source = BAT ]
    RA: 40.4046851109949   Dec: -39.7108825055143  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 40.3840862760964   Dec: -39.6884927859406  [deg; J2000]  
        { 02h 41m 32.2s , -39d 41' 18.6" }
         +/- 2.42196886208938 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.25719522559574 [arcmin] (formal 1-sigma fit error)
    SNR: 8.59619300837187
 
  Angular difference between Flight and Ground position is 1.645887 arcmin
 
  Partial Coding Fraction: 0.1660156    [ including projection effects ]

  Duration
     T90: 80.0960000753403 +/- 15.6097794783625
        Measured from: -3.09599989652634
                   to: 77.0000001788139     [s; relative to TRIGTIME]
     T50: 45.8080000281334 +/- 18.453189190304
        Measured from: 5.96000009775162
                   to: 51.768000125885     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.80400002002716     
                   to: 2.80400002002716     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6.63200002908707     
                   to: 89.527999997139     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.921271   1.307689   0.553863   0.003087
           0.144464   0.147707   0.127871   0.107146 [error]
 Peak      0.048806   0.056436   0.041861   0.018030
           0.014803   0.015915   0.013633   0.011284 [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 4.28e-07 5.31e-07 4.80e-07 7.52e-07 1.70e-06 2.19e-06   erg/cm2
              Error 8.57e-08 7.80e-08 1.21e-07 3.69e-07 2.85e-07 5.14e-07   erg/cm2
Peak flux Power-law 5.42e-01 4.51e-01 2.54e-01 2.13e-01 1.34e+00 1.46e+00   ph/cm2/s
              Error 2.50e-01 1.41e-01 1.08e-01 1.74e-01 4.22e-01 4.51e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.66e-07 6.22e-07 4.68e-07 1.31e-07 1.56e-06 1.59e-06   erg/cm2
              Error 1.03e-07 1.13e-07 1.50e-07 2.88e-07 2.94e-07 4.05e-07   erg/cm2
Peak flux Cutoff-PL 4.45e-01 5.22e-01 2.76e-01 6.04e-02 1.29e+00 1.30e+00   ph/cm2/s
              Error 3.77e-01 1.96e-01 1.35e-01 1.89e-01 4.37e-01 4.85e-01   ph/cm2/s
 
Fluence        Band 3.64e-07 6.18e-07 4.68e-07 1.32e-07 1.56e-06 1.59e-06   erg/cm2
              Error 9.31e-08 1.12e-07 1.38e-07 -------- 2.82e-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    2.148    0.271    -      -           1.89e-03 3.52e-04   64.560 57
CPL   0.699    1.539      38.8    0.0      1.22e-02 0.00e+00   60.580 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.824    0.527    -      -           9.64e-03 3.28e-03   47.930 57
CPL   0.432    3.131      52.6    0.0      5.35e-02 0.00e+00   47.010 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: 33.792000 sec.
T50 in the 50-300 keV band: 16.512000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   96.160   -6.632   89.528
T90    80.096   -3.096   77.000
T50    45.808    5.960   51.768
Peak    1.000    1.804    2.804

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   40.3841 -39.6885 0.0222   47.8   18.6       2.5201     8.6  TRIG_00612804       
------------------------------------------
 
Foreground time interval of the image:
 -6.632  71.901 (delta_t =  78.533 [sec])
Background time interval of the image:
-210.799 -130.300 (delta_t =  80.499 [sec])
-129.000  -6.632 (delta_t = 122.368 [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   -6.632 sec. to   89.528 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.14751     ( -0.258263   0.284656 )
Norm@50keV  : 1.89021E-03    ( -0.000357974   0.00034688 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.56 using 59 PHA bins.
# Reduced chi-squared =          1.133 for     57 degrees of freedom 
# Null hypothesis probability =   2.294252e-01
 
Photon flux (15-150 keV)    in 96.16 sec: 0.304548 ( -0.0446107  0.0446565 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.69742e-06 ( -2.82199e-07  2.88293e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -6.632 sec. to   89.528 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.699382     ( -1.81562   1.26226 )
Epeak [keV] : 38.8109      (   )
Norm@50keV  : 1.22425E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.58 using 59 PHA bins.
# Reduced chi-squared =          1.082 for     56 degrees of freedom 
# Null hypothesis probability =   3.140181e-01
 
Photon flux (15-150 keV)    in 96.16 sec: 0.289520 ( -0.046683  0.046518 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.56022e-06 ( -2.83797e-07  3.04904e-07 ) ergs/cm2
 
Band function
Time interval is from   -6.632 sec. to   89.528 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.699883   ( -0.728832   2.00643 )
beta        : -10.0000    ( 10   0 )
Epeak [keV] : 38.7975      ( -21.7038 12.6035 )
Norm@50keV   : 1.22367E-02    ( -0.0122366   0.121369 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.58 using 59 PHA bins.
# Reduced chi-squared =          1.102 for     55 degrees of freedom 
# Null hypothesis probability =   2.814613e-01
 
Photon flux (15-150 keV)    in 96.16 sec: 0.294982 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.56148e-06 ( -1.56081e-06  -2.85999e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.1768  (-1.43363  1.65699)
R^2/D10^2   : 0.134593  (-0.0601013   0.107948)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.39 using 59 PHA bins.
# Reduced chi-squared =          1.130 for     57 degrees of freedom 
# Null hypothesis probability =   2.337862e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.746e-07   7.058e-08
25- 50  6.996e-07   1.452e-07
50-150  3.841e-07   1.395e-07
15-150  1.358e-06   2.692e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 55.4845       (-17.1188      29.0385)
Norm        : 1.66478       (-0.366305     0.463187)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.19 using 59 PHA bins.
# Reduced chi-squared =          1.073 for     57 degrees of freedom 
# Null hypothesis probability =   3.280602e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.968e-07   8.443e-08
25- 50  5.891e-07   1.071e-07
50-150  6.270e-07   2.485e-07
15-150  1.613e-06   3.274e-07
Double BB
R1^2/D10^2  : 1196.10        (      )
kT2 [keV]   : 11.1051        (-1.69508      2.12108)
R2^2/D10^2  : 9.08608E-02    (-0.04736   0.0590868)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.39 using 59 PHA bins.
#Fit statistic : Chi-Squared =          57.11 using 59 PHA bins.
#Fit statistic : Chi-Squared =          56.99 using 59 PHA bins.
# Reduced chi-squared =          1.171 for     55 degrees of freedom 
# Reduced chi-squared =          1.038 for     55 degrees of freedom 
# Reduced chi-squared =          1.036 for     55 degrees of freedom 
# Null hypothesis probability =   1.809001e-01
# Null hypothesis probability =   3.966761e-01
# Null hypothesis probability =   4.010379e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00

Peak spectrum fit

Power-law model
Time interval is from    1.804 sec. to    2.804 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.82416     ( -0.499427   0.555206 )
Norm@50keV  : 9.63755E-03    ( -0.00334141   0.00320954 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.93 using 59 PHA bins.
# Reduced chi-squared =         0.8409 for     57 degrees of freedom 
# Null hypothesis probability =   7.982852e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.34062 ( -0.42104  0.422607 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.86601e-08 ( -2.99146e-08  3.06197e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.804 sec. to    2.804 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.432193     ( -4.51793   1.74335 )
Epeak [keV] : 52.6050      (   )
Norm@50keV  : 5.34580E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.01 using 59 PHA bins.
# Reduced chi-squared =         0.8395 for     56 degrees of freedom 
# Null hypothesis probability =   7.983412e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.29073 ( -0.438958  0.43414 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.27438e-08 ( -2.94217e-08  3.23612e-08 ) ergs/cm2
 
Band function
Time interval is from    1.804 sec. to    2.804 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.525299   ( -1.69807   4.40493 )
beta        : -9.37013    ( 9.37142   19.3714 )
Epeak [keV] : 53.6458      ( -21.9204 205.49 )
Norm@50keV   : 4.71907E-02    ( -0.0472236   4697.68 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.02 using 59 PHA bins.
# Reduced chi-squared =         0.8548 for     55 degrees of freedom 
# Null hypothesis probability =   7.694957e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.35182e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.6096  (-3.40652  4.53048)
R^2/D10^2   : 0.288142  (-0.288141   0.623616)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.80 using 59 PHA bins.
# Reduced chi-squared =         0.8386 for     57 degrees of freedom 
# Null hypothesis probability =   8.022644e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.715e-09   6.225e-09
25- 50  3.236e-08   1.988e-08
50-150  3.194e-08   2.182e-08
15-150  7.402e-08   4.586e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 93.9886       (-54.0944      -93.9886)
Norm        : 6.12539       (-2.21606     3.40244)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.31 using 59 PHA bins.
# Reduced chi-squared =         0.8300 for     57 degrees of freedom 
# Null hypothesis probability =   8.162982e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.600e-08   1.014e-08
25- 50  2.731e-08   1.681e-08
50-150  4.270e-08   3.516e-08
15-150  8.601e-08   5.860e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.46498        (-3.46807      34.4921)
R1^2/D10^2  : 17.6323        (-17.5953      125.869)
kT2 [keV]   : 14.2483        (-4.36216      -14.2493)
R2^2/D10^2  : 0.165611    (-0.165557   0.522853)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.69 using 59 PHA bins.
# Reduced chi-squared =         0.8490 for     55 degrees of freedom 
# Null hypothesis probability =   7.797214e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.474e-08   8.495e-09
25- 50  2.862e-08   1.672e-08
50-150  3.619e-08   2.472e-08
15-150  7.955e-08   4.553e-08
Plot creation:
Wed Sep 17 10:53:58 EDT 2014