batgrbproduct Analysis for Trigger=569992

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Sep  9 11:23:47 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger569992/batgroup_hand_proc
======================================================================

  Trigger: 00569992      Segment: 000

  BAT Trigger Time: 400282884.092   [s; MET]
      Trigger Stop: 400282884.156   [s; MET]
               UTC: 2013-09-07T21:41:13.086760    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 215.877573298739   Dec: 45.6161784400488  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.91
     Image Trigger?:     NO
     Rate S/N Ratio:     18.8414436814168  [ if not an image trigger ]
     Image S/N Ratio:    9.91

  Flight Position:   [ source = BAT ]
    RA: 215.877573298739   Dec: 45.6161784400488  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 215.897785625475   Dec: 45.6022358745828  [deg; J2000]  
        { 14h 23m 35.5s , +45d 36' 08.0" }
         +/- 0.356716823559881 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.0839705567005145 [arcmin] (formal 1-sigma fit error)
    SNR: 132.634378142227
 
  Angular difference between Flight and Ground position is 1.191451 arcmin
 
  Partial Coding Fraction: 1.03125    [ including projection effects ]

  Duration
     T90: 364.291999936104 +/- 5.22398471448131
        Measured from: -41.0999999046326
                   to: 323.192000031471     [s; relative to TRIGTIME]
     T50: 59.6959999203682 +/- 0.327438541184249
        Measured from: 2.79200011491776
                   to: 62.4880000352859     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 57.6639999747276     
                   to: 58.6639999747276     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -73.7360000014305     
                   to: 767.388000011444     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    46.609256  70.415999  66.307184  20.899639
           0.165875   0.182019   0.173063   0.145294 [error]
 Peak      0.634256   1.119254   1.251257   0.408220
           0.011279   0.014783   0.016300   0.012519 [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 1.24e-05 2.80e-05 4.99e-05 2.09e-04 1.36e-04 2.99e-04   erg/cm2
              Error 3.34e-07 4.62e-07 4.90e-07 4.62e-06 1.36e-06 4.53e-06   erg/cm2
Peak flux Power-law 5.44e+00 7.59e+00 7.83e+00 1.48e+01 2.56e+01 3.57e+01   ph/cm2/s
              Error 2.26e-01 1.86e-01 1.46e-01 6.41e-01 4.78e-01 6.94e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.24e-05 2.80e-05 4.99e-05 2.08e-04 1.36e-04 2.98e-04   erg/cm2
              Error 3.95e-07 4.11e-07 4.91e-07 5.56e-06 1.36e-06 5.21e-06   erg/cm2
Peak flux Cutoff-PL 5.39e+00 7.59e+00 7.86e+00 1.43e+01 2.55e+01 3.51e+01   ph/cm2/s
              Error 2.75e-01 1.61e-01 1.91e-01 1.55e+00 3.54e-01 1.55e+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    1.167    0.019    -      -           1.59e-02 1.95e-04   15.990 57
CPL   1.161    0.019    9999.4    0.0      1.60e-02 5.91e-04   15.980 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    0.953    0.034    -      -           2.22e-01 4.09e-03   62.880 57
CPL   0.885    0.108    1008.3    0.0      2.37e-01 1.95e-02   62.150 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: 280.448000 sec.
T50 in the 50-300 keV band: 56.704000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  841.124  -73.736  767.388
T90   364.292  -41.100  323.192
T50    59.696    2.792   62.488
Peak    1.000   57.664   58.664

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  215.8978    45.6022   0.0015     9.2407  -156.9223        61.5902499    132.634 TRIG_00569992                 
 
Foreground time interval of the image:
-14.691  17.109 (delta_t =  31.800 [sec])
Background time interval of the image:

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
Multiple GTIs in the spectrum
tstart tstop
-73.736000 -17.612000
-16.092000 572.128000
572.908000 630.138000
630.908000 658.608000
659.908000 678.088000
678.908000 679.468000
680.908000 767.388000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.16702     ( -0.0190477   0.0189539 )
Norm@50keV  : 1.59088E-02    ( -0.000195471   0.000194685 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          15.99 using 59 PHA bins.
# Reduced chi-squared =         0.2805 for     57 degrees of freedom 
# Null hypothesis probability =   1.000000e+00
 
Photon flux (15-150 keV)    in 834.5 sec: 1.85916 ( -0.0256588  0.0257841 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0.000135977 ( -1.35619e-06  1.35643e-06 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-73.736000 -17.612000
-16.092000 572.128000
572.908000 630.138000
630.908000 658.608000
659.908000 678.088000
678.908000 679.468000
680.908000 767.388000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.16110     ( -0.0192884   0.0190378 )
Epeak [keV] : 9999.35      ( -9999.36 -9999.36 )
Norm@50keV  : 1.59860E-02    ( -0.000184372   0.000996727 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          15.98 using 59 PHA bins.
# Reduced chi-squared =         0.2854 for     56 degrees of freedom 
# Null hypothesis probability =   1.000000e+00
 
Photon flux (15-150 keV)    in 834.5 sec: 1.85816 ( -0.02607  0.02529 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0.000136041 ( -1.3569e-06  1.36024e-06 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-73.736000 -17.612000
-16.092000 572.128000
572.908000 630.138000
630.908000 658.608000
659.908000 678.088000
678.908000 679.468000
680.908000 767.388000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.775493   ( 0.775478   5.73303 )
beta        : -1.16751    ( -0.0196907   0.0193306 )
Epeak [keV] : 72.9232      ( -72.7976 -72.7976 )
Norm@50keV   : 3.17452E-02    ( -0.0167945   613548 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          15.94 using 59 PHA bins.
# Reduced chi-squared =         0.2898 for     55 degrees of freedom 
# Null hypothesis probability =   9.999999e-01
 
Photon flux (15-150 keV)    in 834.5 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]    : 26.8826  (  )
R^2/D10^2   : 3.26204E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =        1711.69 using 59 PHA bins.
# Reduced chi-squared =        30.0296 for     57 degrees of freedom 
# Null hypothesis probability =  1.613618e-320
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.284e-06   7.594e-08
25- 50  1.930e-05   3.714e-07
50-150  1.020e-04   1.127e-06
15-150  1.246e-04   1.293e-06
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 8.89772       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =        1916.61 using 59 PHA bins.
# Reduced chi-squared =        33.6247 for     57 degrees of freedom 
# Null hypothesis probability =   0.000000e+00
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.849e-05   2.420e-07
25- 50  3.557e-05   4.256e-07
50-150  7.800e-05   1.018e-06
15-150  1.321e-04   1.711e-06
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.93208        (-0.423247      0.441933)
R1^2/D10^2  : 0.690341        (-0.105639      0.128697)
kT2 [keV]   : 38.1310        (-1.28203      1.44173)
R2^2/D10^2  : 9.17585E-03    (-0.0010612   0.00111388)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          35.69 using 59 PHA bins.
# Reduced chi-squared =         0.6490 for     55 degrees of freedom 
# Null hypothesis probability =   9.797914e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.040e-05   5.132e-07
25- 50  2.871e-05   6.008e-07
50-150  9.689e-05   1.252e-06
15-150  1.360e-04   1.669e-06

Peak spectrum fit

Power-law model
Time interval is from   57.664 sec. to   58.664 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.953357     ( -0.03407   0.0339716 )
Norm@50keV  : 0.222426    ( -0.00409114   0.00408067 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.88 using 59 PHA bins.
# Reduced chi-squared =          1.103 for     57 degrees of freedom 
# Null hypothesis probability =   2.759938e-01
 
Photon flux (15-150 keV)    in 1 sec: 25.5572 ( -0.477808  0.47827 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.44622e-06 ( -4.62475e-08  4.62379e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   57.664 sec. to   58.664 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.885379     ( -0.138714   0.0782432 )
Epeak [keV] : 1008.27      ( -1012.99 -1012.99 )
Norm@50keV  : 0.237351    ( -0.00791386   0.0310485 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.15 using 59 PHA bins.
# Reduced chi-squared =          1.110 for     56 degrees of freedom 
# Null hypothesis probability =   2.664302e-01
 
Photon flux (15-150 keV)    in 1 sec: 25.5166 ( -0.4614  0.2465 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.44171e-06 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from   57.664 sec. to   58.664 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.811625   ( 0.811616   0.811616 )
beta        : -0.953357    ( -0.0339671   0.0340767 )
Epeak [keV] : 41.9111      (   )
Norm@50keV   : 0.355214    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.88 using 59 PHA bins.
# Reduced chi-squared =          1.143 for     55 degrees of freedom 
# Null hypothesis probability =   2.173886e-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]    : 24.6429  (  )
R^2/D10^2   : 0.646596  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         519.36 using 59 PHA bins.
# Reduced chi-squared =         9.1116 for     57 degrees of freedom 
# Null hypothesis probability =   8.099829e-76
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.873e-08   2.570e-09
25- 50  3.871e-07   9.500e-09
50-150  1.746e-06   4.800e-08
15-150  2.202e-06   4.650e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 107.348       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         952.01 using 59 PHA bins.
# Reduced chi-squared =         16.702 for     57 degrees of freedom 
# Null hypothesis probability =  1.495512e-162
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.673e-07   5.200e-09
25- 50  5.142e-07   9.350e-09
50-150  1.128e-06   2.050e-08
15-150  1.909e-06   3.550e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.25947        (-0.770066      0.852444)
R1^2/D10^2  : 9.93627        (-2.6441      3.83171)
kT2 [keV]   : 36.7808        (-2.40239      3.02222)
R2^2/D10^2  : 0.169927    (-0.0366091   0.0399775)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.45 using 59 PHA bins.
# Reduced chi-squared =          1.226 for     55 degrees of freedom 
# Null hypothesis probability =   1.208747e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.569e-07   1.190e-08
25- 50  4.409e-07   1.810e-08
50-150  1.863e-06   7.250e-08
15-150  2.460e-06   8.000e-08
Plot creation:
Mon Sep  9 12:16:51 EDT 2013