batgrbproduct Analysis for Trigger=598497

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri May  9 13:25:27 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger598497/GCN5_download_cron
======================================================================

  Trigger: 00598497      Segment: 000

  BAT Trigger Time: 421294945.6   [s; MET]
      Trigger Stop: 421294949.696   [s; MET]
               UTC: 2014-05-09T02:22:13.613280    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 46.608358981037   Dec: -62.6535551180924  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.6
     Image Trigger?:     NO
     Rate S/N Ratio:     10.1488915650922  [ if not an image trigger ]
     Image S/N Ratio:    7.6

  Flight Position:   [ source = BAT ]
    RA: 46.608358981037   Dec: -62.6535551180924  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 46.5639097799908   Dec: -62.6619044605091  [deg; J2000]  
        { 03h 06m 15.3s , -62d 39' 42.9" }
         +/- 1.90023094866231 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.81239165289865 [arcmin] (formal 1-sigma fit error)
    SNR: 12.1569195108063
 
  Angular difference between Flight and Ground position is 1.323424 arcmin
 
  Partial Coding Fraction: 0.1953125    [ including projection effects ]

  Duration
     T90: 23.2000000476837 +/- 5.17115694874123
        Measured from: -2.83199989795685
                   to: 20.3680001497269     [s; relative to TRIGTIME]
     T50: 9.08799999952316 +/- 2.62020458549755
        Measured from: 0.992000102996826
                   to: 10.08000010252     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.77999997138977     
                   to: 2.77999997138977     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -3.80800002813339     
                   to: 23.1200000047684     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.554778   0.661231   0.497708   0.196844
           0.068576   0.072148   0.064606   0.056382 [error]
 Peak      0.050754   0.051172   0.074101   0.016732
           0.013950   0.015237   0.013428   0.011573 [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 1.82e-07 3.16e-07 4.19e-07 1.14e-06 1.22e-06 2.05e-06   erg/cm2
              Error 3.43e-08 3.73e-08 6.38e-08 3.64e-07 1.54e-07 4.16e-07   erg/cm2
Peak flux Power-law 5.09e-01 5.14e-01 3.65e-01 4.13e-01 1.55e+00 1.80e+00   ph/cm2/s
              Error 2.10e-01 1.36e-01 9.97e-02 2.26e-01 3.86e-01 4.23e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.73e-07 3.29e-07 4.28e-07 6.75e-07 1.19e-06 1.60e-06   erg/cm2
              Error 3.98e-08 3.56e-08 6.92e-08 6.96e-07 1.68e-07 5.54e-07   erg/cm2
Peak flux Cutoff-PL 4.34e-01 5.53e-01 3.99e-01 2.00e-01 1.51e+00 1.59e+00   ph/cm2/s
              Error 3.55e-01 1.68e-01 1.33e-01 3.19e-01 4.10e-01 5.33e-01   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    1.591    0.196    -      -           4.85e-03 5.70e-04   73.750 57
CPL   1.245    0.639     107.2  -30.9      7.32e-03 8.08e-03   73.150 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.494    0.387    -      -           1.24e-02 2.93e-03   60.360 57
CPL   0.681    2.171      85.2  -26.3      3.11e-02 3.52e-01   59.890 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: 32.768000 sec.
T50 in the 50-300 keV band: 14.400000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   26.928   -3.808   23.120
T90    23.200   -2.832   20.368
T50     9.088    0.992   10.080
Peak    1.000    1.780    2.780

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   46.5639 -62.6619 0.0158   44.2   30.1       1.7151    12.2  TRIG_00598497       
------------------------------------------
 
Foreground time interval of the image:
 -3.808  23.120 (delta_t =  26.928 [sec])
Background time interval of the image:
-239.600 -152.680 (delta_t =  86.920 [sec])
-151.600  -3.808 (delta_t = 147.792 [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   -3.808 sec. to   23.120 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.59117     ( -0.19426   0.197131 )
Norm@50keV  : 4.84894E-03    ( -0.000572306   0.000567999 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.75 using 59 PHA bins.
# Reduced chi-squared =          1.294 for     57 degrees of freedom 
# Null hypothesis probability =   6.706902e-02
 
Photon flux (15-150 keV)    in 26.93 sec: 0.621418 ( -0.072479  0.0726193 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.22255e-06 ( -1.53531e-07  1.54863e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -3.808 sec. to   23.120 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.24543     ( -0.88692   0.390654 )
Epeak [keV] : 107.225      ( -45.3292 -107.229 )
Norm@50keV  : 7.31825E-03    ( -0.00296452   0.0131982 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.15 using 59 PHA bins.
# Reduced chi-squared =          1.306 for     56 degrees of freedom 
# Null hypothesis probability =   6.162460e-02
 
Photon flux (15-150 keV)    in 26.93 sec: 0.613289 ( -0.074959  0.07472 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.19388e-06 ( -1.68576e-07  1.6748e-07 ) ergs/cm2
 
Band function
Time interval is from   -3.808 sec. to   23.120 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.98603   ( -4.98603   -4.98603 )
beta        : -1.68799    ( -0.255601   0.219772 )
Epeak [keV] : 24.2746      ( -24.2746 4.97602 )
Norm@50keV   : 659.794    ( -74.3587   2.63087e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.58 using 59 PHA bins.
# Reduced chi-squared =          1.301 for     55 degrees of freedom 
# Null hypothesis probability =   6.589834e-02
 
Photon flux (15-150 keV)    in 26.93 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]    : 14.2851  (-1.88969  2.20707)
R^2/D10^2   : 8.26318E-02  (-0.0334799   0.0552007)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          90.08 using 59 PHA bins.
# Reduced chi-squared =          1.580 for     57 degrees of freedom 
# Null hypothesis probability =   3.420095e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.572e-08   1.990e-08
25- 50  3.632e-07   6.154e-08
50-150  4.929e-07   1.200e-07
15-150  9.518e-07   1.382e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 182.143       (-76.0678      -180.953)
Norm        : 2.53883       (-0.301239     0.364205)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.13 using 59 PHA bins.
# Reduced chi-squared =          1.283 for     57 degrees of freedom 
# Null hypothesis probability =   7.368819e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.722e-07   9.583e-08
25- 50  3.276e-07   1.744e-07
50-150  6.966e-07   3.794e-07
15-150  1.196e-06   6.502e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.86340        (-1.91196      3.63028)
R1^2/D10^2  : 1.19551        (-0.931154      4.46513)
kT2 [keV]   : 21.7523        (-5.1227      20.0723)
R2^2/D10^2  : 1.48540E-02    (-0.0134112   0.0159016)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.49 using 59 PHA bins.
# Reduced chi-squared =          1.336 for     55 degrees of freedom 
# Null hypothesis probability =   4.856483e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.774e-07   8.876e-08
25- 50  3.197e-07   1.540e-07
50-150  6.647e-07   3.685e-07
15-150  1.162e-06   4.959e-07

Peak spectrum fit

Power-law model
Time interval is from    1.780 sec. to    2.780 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.49390     ( -0.388989   0.384305 )
Norm@50keV  : 1.24411E-02    ( -0.00292893   0.00292505 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.36 using 59 PHA bins.
# Reduced chi-squared =          1.059 for     57 degrees of freedom 
# Null hypothesis probability =   3.554119e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.55061 ( -0.385125  0.387331 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.18141e-07 ( -2.9126e-08  2.92844e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.780 sec. to    2.780 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.681379     ( -3.18369   1.15903 )
Epeak [keV] : 85.2350      ( -32.6637 -85.1675 )
Norm@50keV  : 3.11173E-02    ( -0.0311837   0.672873 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.89 using 59 PHA bins.
# Reduced chi-squared =          1.069 for     56 degrees of freedom 
# Null hypothesis probability =   3.365308e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.51317 ( -0.41854  0.40049 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14599e-07 ( -3.06083e-08  3.0766e-08 ) ergs/cm2
 
Band function
Time interval is from    1.780 sec. to    2.780 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.452640   ( 0.68779   3.5231 )
beta        : -2.24422    ( 2.08124   2.22829 )
Epeak [keV] : 76.8206      ( -76.8196 244.279 )
Norm@50keV   : 4.03955E-02    ( -0.0403868   1245.48 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.57 using 59 PHA bins.
# Reduced chi-squared =          1.083 for     55 degrees of freedom 
# Null hypothesis probability =   3.129016e-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]    : 16.5202  (-3.33433  4.42446)
R^2/D10^2   : 0.134141  (-0.0786285   0.166078)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.29 using 59 PHA bins.
# Reduced chi-squared =          1.075 for     57 degrees of freedom 
# Null hypothesis probability =   3.248094e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.512e-09   3.463e-09
25- 50  3.247e-08   1.339e-08
50-150  6.268e-08   2.853e-08
15-150  1.027e-07   4.198e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.361       (-111.559      -199.363)
Norm        : 6.45635       (-1.51265     1.68122)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.17 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     57 degrees of freedom 
# Null hypothesis probability =   3.616480e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.608e-08   9.505e-09
25- 50  3.093e-08   1.813e-08
50-150  6.783e-08   3.966e-08
15-150  1.148e-07   6.680e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.87591        (-2.9067      20.5937)
R1^2/D10^2  : 12.4943        (-12.9472      2181.71)
kT2 [keV]   : 18.5561        (-4.17219      -18.5365)
R2^2/D10^2  : 8.12093E-02    (-0.0806085   0.115905)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.46 using 59 PHA bins.
# Reduced chi-squared =          1.063 for     55 degrees of freedom 
# Null hypothesis probability =   3.494748e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.528e-08   9.435e-09
25- 50  2.942e-08   1.651e-08
50-150  6.603e-08   4.094e-08
15-150  1.107e-07   6.065e-08
Plot creation:
Fri May  9 13:30:19 EDT 2014