batgrbproduct Analysis for Trigger=585834

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Feb  7 11:50:52 EST 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger585834/batgroup_hand_proc
======================================================================

  Trigger: 00585834      Segment: 000

  BAT Trigger Time: 413363851.776   [s; MET]
      Trigger Stop: 413363852.8   [s; MET]
               UTC: 2014-02-06T07:17:20.165420    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 145.350247125002   Dec: 66.7503930303182  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    18.35
     Image Trigger?:     NO
     Rate S/N Ratio:     52.820450584977  [ if not an image trigger ]
     Image S/N Ratio:    18.35

  Flight Position:   [ source = BAT ]
    RA: 145.350247125002   Dec: 66.7503930303182  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 145.320577460054   Dec: 66.7618595985734  [deg; J2000]  
        { 09h 41m 16.9s , +66d 45' 42.7" }
         +/- 0.69333051308547 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.205481935230627 [arcmin] (formal 1-sigma fit error)
    SNR: 51.3270735445193
 
  Angular difference between Flight and Ground position is 0.983310 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 93.62399995327 +/- 13.7528238777123
        Measured from: 1.91599994897842
                   to: 95.5399999022484     [s; relative to TRIGTIME]
     T50: 11.0839999318123 +/- 18.1882327028035
        Measured from: 51.9639999866486
                   to: 63.0479999184608     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 60.8039999604225     
                   to: 61.8039999604225     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -37.2120000123978     
                   to: 256.091999948025     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     7.730381  10.372310   7.511088   1.413724
           0.109592   0.112886   0.101249   0.085569 [error]
 Peak      0.590600   0.982632   0.863442   0.160404
           0.013651   0.017062   0.016387   0.009136 [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 2.35e-06 4.12e-06 5.53e-06 1.52e-05 1.61e-05 2.72e-05   erg/cm2
              Error 8.65e-08 8.73e-08 1.16e-07 7.42e-07 2.88e-07 7.91e-07   erg/cm2
Peak flux Power-law 6.08e+00 6.66e+00 5.19e+00 6.66e+00 2.04e+01 2.46e+01   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
 
Fluence   Cutoff-PL 2.03e-06 4.20e-06 5.77e-06 8.30e-06 1.55e-05 2.03e-05   erg/cm2
              Error 1.16e-07 9.36e-08 1.36e-07 1.31e-06 3.27e-07 1.34e-06   erg/cm2
Peak flux Cutoff-PL 4.65e+00 6.93e+00 5.81e+00 3.18e+00 1.94e+01 2.06e+01   ph/cm2/s
              Error 3.38e-01 2.00e-01 1.77e-01 4.02e-01 5.20e-01 6.78e-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    1.575    0.034    -      -           5.84e-03 1.02e-04   91.210 57
CPL   1.039    0.155     100.9   14.5      1.01e-02 1.56e-03   52.760 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    1.358    0.000    -      -           1.69e-01 0.00e+00  159.740 57
CPL   0.367    0.193      94.5    8.2      4.65e-01 8.99e-02   66.920 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: 64.128000 sec.
T50 in the 50-300 keV band: 11.584000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  293.304  -37.212  256.092
T90    93.624    1.916   95.540
T50    11.084   51.964   63.048
Peak    1.000   60.804   61.804

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  145.3206    66.7619   0.0037     4.2255    40.2107         5.3078332     51.327 TRIG_00585834                 
 
Foreground time interval of the image:
-37.212  11.925 (delta_t =  49.137 [sec])
Background time interval of the image:
-239.776 -37.212 (delta_t = 202.564 [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  -37.212 sec. to  256.092 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.57542     ( -0.0336913   0.0337006 )
Norm@50keV  : 5.83712E-03    ( -0.000102497   0.000102493 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          91.21 using 59 PHA bins.
# Reduced chi-squared =          1.600 for     57 degrees of freedom 
# Null hypothesis probability =   2.695422e-03
 
Photon flux (15-150 keV)    in 293.3 sec: 0.744499 ( -0.0153444  0.0154021 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.60611e-05 ( -2.87682e-07  2.87772e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -37.212 sec. to  256.092 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.03926     ( -0.157341   0.152494 )
Epeak [keV] : 100.899      ( -10.8697 18.0793 )
Norm@50keV  : 1.00706E-02    ( -0.00141689   0.00170534 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.76 using 59 PHA bins.
# Reduced chi-squared =         0.9421 for     56 degrees of freedom 
# Null hypothesis probability =   5.983439e-01
 
Photon flux (15-150 keV)    in 293.3 sec: 0.709846 ( -0.017527  0.017662 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.55091e-05 ( -3.27528e-07  3.26824e-07 ) ergs/cm2
 
Band function
Time interval is from  -37.212 sec. to  256.092 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.01294   ( -0.177745   0.222813 )
beta        : -2.12758    ( 2.12357   0.299821 )
Epeak [keV] : 97.7217      ( -18.8911 21.1132 )
Norm@50keV   : 1.03876E-02    ( -0.00170349   0.00334983 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.62 using 59 PHA bins.
# Reduced chi-squared =         0.9567 for     55 degrees of freedom 
# Null hypothesis probability =   5.660848e-01
 
Photon flux (15-150 keV)    in 293.3 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]    : 16.6609  (  )
R^2/D10^2   : 5.53560E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         503.31 using 59 PHA bins.
# Reduced chi-squared =         8.8300 for     57 degrees of freedom 
# Null hypothesis probability =   1.049591e-72
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.228e-07   3.446e-08
25- 50  4.017e-06   9.532e-08
50-150  7.909e-06   2.112e-07
15-150  1.285e-05   2.434e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 3.00216       (-0.0526088     0.0525698)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.23 using 59 PHA bins.
# Reduced chi-squared =          1.039 for     57 degrees of freedom 
# Null hypothesis probability =   3.940510e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.193e-06   4.180e-08
25- 50  4.219e-06   8.799e-08
50-150  9.254e-06   1.950e-07
15-150  1.567e-05   3.314e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.00807        (-0.676328      0.707638)
R1^2/D10^2  : 0.427234        (-0.0996945      0.144423)
kT2 [keV]   : 25.8763        (-1.75395      2.20868)
R2^2/D10^2  : 8.96035E-03    (-0.00246257   0.00289569)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.24 using 59 PHA bins.
# Reduced chi-squared =          1.186 for     55 degrees of freedom 
# Null hypothesis probability =   1.623897e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.754e-06   1.301e-07
25- 50  4.282e-06   1.657e-07
50-150  9.222e-06   4.165e-07
15-150  1.526e-05   5.118e-07

Peak spectrum fit

Power-law model
Time interval is from   60.804 sec. to   61.804 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.35812     (     )
Norm@50keV  : 0.169214    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         159.74 using 59 PHA bins.
# Reduced chi-squared =         2.8024 for     57 degrees of freedom 
# Null hypothesis probability =   1.120245e-11
 
Photon flux (15-150 keV)    in 1 sec: 20.4198 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   60.804 sec. to   61.804 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.366990     ( -0.196517   0.189004 )
Epeak [keV] : 94.4550      ( -6.94168 9.43565 )
Norm@50keV  : 0.464853    ( -0.0795842   0.100154 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.92 using 59 PHA bins.
# Reduced chi-squared =          1.195 for     56 degrees of freedom 
# Null hypothesis probability =   1.506560e-01
 
Photon flux (15-150 keV)    in 1 sec: 19.3887 ( -0.5184  0.5212 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.59079e-06 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   60.804 sec. to   61.804 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.366893   ( -0.178509   0.197776 )
beta        : -10.0000    ( 10   0 )
Epeak [keV] : 94.4373      ( -6.94341 9.43373 )
Norm@50keV   : 0.464911    ( -0.0796388   0.100146 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.92 using 59 PHA bins.
# Reduced chi-squared =          1.217 for     55 degrees of freedom 
# Null hypothesis probability =   1.300610e-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]    : 18.2276  (  )
R^2/D10^2   : 1.27416  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         237.46 using 59 PHA bins.
# Reduced chi-squared =         4.1660 for     57 degrees of freedom 
# Null hypothesis probability =   6.931532e-24
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.441e-08   3.370e-09
25- 50  3.941e-07   1.205e-08
50-150  9.533e-07   3.860e-08
15-150  1.432e-06   3.600e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 86.0542       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         203.79 using 59 PHA bins.
# Reduced chi-squared =         3.5752 for     57 degrees of freedom 
# Null hypothesis probability =   2.228278e-18
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.143e-07   5.650e-09
25- 50  4.122e-07   1.050e-08
50-150  9.040e-07   2.190e-08
15-150  1.531e-06   3.550e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.53386        (-1.38536      1.44475)
R1^2/D10^2  : 7.24743        (-2.40749      4.95192)
kT2 [keV]   : 25.1351        (-2.08381      2.91281)
R2^2/D10^2  : 0.335942    (-0.123509   0.145946)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          73.37 using 59 PHA bins.
# Reduced chi-squared =          1.334 for     55 degrees of freedom 
# Null hypothesis probability =   4.956431e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.365e-07   1.370e-08
25- 50  4.038e-07   2.335e-08
50-150  1.042e-06   6.585e-08
15-150  1.582e-06   8.450e-08
Plot creation:
Fri Feb  7 12:49:09 EST 2014