batgrbproduct Analysis for Trigger=585128

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jan 29 17:29:12 EST 2014
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger585128/GCN5_download_cron
======================================================================

  Trigger: 00585128      Segment: 000

  BAT Trigger Time: 412658651.008   [s; MET]
      Trigger Stop: 412658655.104   [s; MET]
               UTC: 2014-01-29T03:23:59.430600    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 37.868986842113   Dec: -1.5867151917387  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.08
     Image Trigger?:     NO
     Rate S/N Ratio:     8.48528137423857  [ if not an image trigger ]
     Image S/N Ratio:    7.08

  Flight Position:   [ source = BAT ]
    RA: 37.868986842113   Dec: -1.5867151917387  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 37.8508495907792   Dec: -1.59448319617304  [deg; J2000]  
        { 02h 31m 24.2s , -01d 35' 40.1" }
         +/- 2.20428566736224 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.965733548041824 [arcmin] (formal 1-sigma fit error)
    SNR: 9.83412442486429
 
  Angular difference between Flight and Ground position is 1.183458 arcmin
 
  Partial Coding Fraction: 0.5703125    [ including projection effects ]

  Duration
     T90: 2.99200004339218 +/- 0.791838382571028
        Measured from: 1.4080001115799
                   to: 4.40000015497208     [s; relative to TRIGTIME]
     T50: 1.26400005817413 +/- 0.590050857938206
        Measured from: 2.16000008583069
                   to: 3.42400014400482     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.90799999237061     
                   to: 2.90799999237061     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 1.24799996614456     
                   to: 4.6240000128746     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.091831   0.125207   0.021182   0.032888
           0.015139   0.015534   0.013540   0.012094 [error]
 Peak      0.031084   0.049502   0.022637   0.013326
           0.008393   0.008821   0.007755   0.006570 [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 3.15e-08 4.08e-08 3.86e-08 6.46e-08 1.33e-07 1.75e-07   erg/cm2
              Error 6.98e-09 7.15e-09 1.24e-08 4.04e-08 2.85e-08 5.54e-08   erg/cm2
Peak flux Power-law 3.51e-01 3.11e-01 1.90e-01 1.76e-01 9.27e-01 1.03e+00   ph/cm2/s
              Error 1.25e-01 6.97e-02 6.58e-02 1.24e-01 2.06e-01 2.35e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.94e-08 4.81e-08 2.93e-08 4.81e-09 1.11e-07 1.12e-07   erg/cm2
              Error 8.57e-09 1.29e-08 2.44e-08 4.57e-08 3.51e-08 6.79e-08   erg/cm2
Peak flux Cutoff-PL 3.56e-01 3.12e-01 1.88e-01 1.70e-01 9.28e-01 1.02e+00   ph/cm2/s
              Error 1.24e-01 5.33e-02 6.58e-02 1.75e-01 2.06e-01 2.44e-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    2.080    0.332    -      -           4.23e-03 9.94e-04   52.820 57
CPL   0.498    2.555      34.5    0.0      4.13e-02 0.00e+00   51.790 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.712    0.443    -      -           6.95e-03 1.81e-03   37.310 57
CPL   3.159    0.000     328.2    0.0      1.41e-03 0.00e+00   35.880 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    3.376    1.248    4.624
T90     2.992    1.408    4.400
T50     1.264    2.160    3.424
Peak    1.000    1.908    2.908

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   37.8508  -1.5945 0.0196   26.5  -79.8       0.2698     9.8  TRIG_00585128       
------------------------------------------
 
Foreground time interval of the image:
  1.248   4.624 (delta_t =   3.376 [sec])
Background time interval of the image:
-93.707   1.248 (delta_t =  94.955 [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    1.248 sec. to    4.624 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.08002     ( -0.314021   0.349589 )
Norm@50keV  : 4.23334E-03    ( -0.00101181   0.000976508 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.82 using 59 PHA bins.
# Reduced chi-squared =         0.9267 for     57 degrees of freedom 
# Null hypothesis probability =   6.324231e-01
 
Photon flux (15-150 keV)    in 3.376 sec: 0.659520 ( -0.110509  0.110516 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.3254e-07 ( -2.78659e-08  2.91651e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.248 sec. to    4.624 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.498251     ( -3.48344   1.62606 )
Epeak [keV] : 34.4927      (   )
Norm@50keV  : 4.13115E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.79 using 59 PHA bins.
# Reduced chi-squared =         0.9249 for     56 degrees of freedom 
# Null hypothesis probability =   6.347062e-01
 
Photon flux (15-150 keV)    in 3.376 sec: 0.625802 ( -0.117567  0.123344 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.11449e-07 ( -2.64061e-08  4.38694e-08 ) ergs/cm2
 
Band function
Time interval is from    1.248 sec. to    4.624 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -2.91150E-03   ( 0.995471   4.38724 )
beta        : -3.01604    ( 2.65274   0.769691 )
Epeak [keV] : 34.0517      ( -33.5774 11.6861 )
Norm@50keV   : 8.63242E-02    ( -0.0851169   6.39192 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.83 using 59 PHA bins.
# Reduced chi-squared =         0.9242 for     55 degrees of freedom 
# Null hypothesis probability =   6.346584e-01
 
Photon flux (15-150 keV)    in 3.376 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]    : 8.96487  (-1.35513  1.58329)
R^2/D10^2   : 0.483048  (-0.228561   0.428533)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.70 using 59 PHA bins.
# Reduced chi-squared =         0.9245 for     57 degrees of freedom 
# Null hypothesis probability =   6.371669e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.547e-08   7.858e-09
25- 50  5.380e-08   1.498e-08
50-150  2.028e-08   9.890e-09
15-150  9.954e-08   2.525e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 51.6676       (-19.2425      42.3498)
Norm        : 3.69612       (-0.944874     1.36443)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.03 using 59 PHA bins.
# Reduced chi-squared =         0.9127 for     57 degrees of freedom 
# Null hypothesis probability =   6.617138e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.073e-08   6.801e-09
25- 50  4.465e-08   1.095e-08
50-150  4.470e-08   2.388e-08
15-150  1.201e-07   3.302e-08
Double BB
R1^2/D10^2  : 0.619677        (-0.321964      0.396912)
kT2 [keV]   : 200.000        (      )
R2^2/D10^2  : 4.95473E-05    (-3.62876e-05   0.000305811)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.69 using 59 PHA bins.
#Fit statistic : Chi-Squared =          48.48 using 59 PHA bins.
#Fit statistic : Chi-Squared =          48.28 using 59 PHA bins.
# Reduced chi-squared =         0.9035 for     55 degrees of freedom 
# Reduced chi-squared =         0.8815 for     55 degrees of freedom 
# Reduced chi-squared =         0.8779 for     55 degrees of freedom 
# Null hypothesis probability =   6.769146e-01
# Null hypothesis probability =   7.202379e-01
# Null hypothesis probability =   7.271324e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.863e-08   1.396e-08
25- 50  5.038e-08   2.817e-08
50-150  2.499e-08   1.627e-08
15-150  1.040e-07   4.963e-08

Peak spectrum fit

Power-law model
Time interval is from    1.908 sec. to    2.908 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.71240     ( -0.420312   0.465783 )
Norm@50keV  : 6.94808E-03    ( -0.00187275   0.00175002 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.31 using 59 PHA bins.
# Reduced chi-squared =         0.6546 for     57 degrees of freedom 
# Null hypothesis probability =   9.797575e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.926815 ( -0.20616  0.206274 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.42692e-08 ( -1.73675e-08  1.79032e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.908 sec. to    2.908 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.15858     (     )
Epeak [keV] : 328.180      (   )
Norm@50keV  : 1.40720E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          35.88 using 59 PHA bins.
# Reduced chi-squared =         0.6408 for     56 degrees of freedom 
# Null hypothesis probability =   9.833121e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.927606 ( -0.206798  0.205554 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.31891e-08 ( -1.63785e-08  1.87289e-08 ) ergs/cm2
 
Band function
Time interval is from    1.908 sec. to    2.908 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.44847   ( 1.44865   1.44865 )
beta        : -1.71148    ( 1.71239   0.421041 )
Epeak [keV] : 20.4517      ( -20.4872 -20.4872 )
Norm@50keV   : 1.38986E-02    ( -0.00849184   1.16829 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.31 using 59 PHA bins.
# Reduced chi-squared =         0.6784 for     55 degrees of freedom 
# Null hypothesis probability =   9.675533e-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]    : 11.0140  (-2.95081  4.83668)
R^2/D10^2   : 0.296417  (-0.215901   0.631109)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.60 using 59 PHA bins.
# Reduced chi-squared =         0.8000 for     57 degrees of freedom 
# Null hypothesis probability =   8.610685e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.515e-09   4.034e-09
25- 50  2.128e-08   9.896e-09
50-150  1.460e-08   9.097e-09
15-150  4.340e-08   1.855e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 147.125       (      )
Norm        : 3.80554       (-0.908766     1.44759)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.15 using 59 PHA bins.
# Reduced chi-squared =         0.6693 for     57 degrees of freedom 
# Null hypothesis probability =   9.741035e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.423e-09   5.425e-09
25- 50  1.787e-08   9.895e-09
50-150  3.765e-08   2.156e-08
15-150  6.494e-08   3.714e-08
Double BB
R1^2/D10^2  : 1.02494        (      )
kT2 [keV]   : 43.3614        (-43.3705      -43.3707)
R2^2/D10^2  : 2.24136E-03    (-0.00210458   0.0611184)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.53 using 59 PHA bins.
#Fit statistic : Chi-Squared =          37.54 using 59 PHA bins.
#Fit statistic : Chi-Squared =          37.52 using 59 PHA bins.
# Reduced chi-squared =         0.7188 for     55 degrees of freedom 
# Reduced chi-squared =         0.6825 for     55 degrees of freedom 
# Reduced chi-squared =         0.6822 for     55 degrees of freedom 
# Null hypothesis probability =   9.424942e-01
# Null hypothesis probability =   9.654509e-01
# Null hypothesis probability =   9.656331e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.739e-09   4.599e-09
25- 50  1.716e-08   1.015e-08
50-150  2.474e-08   1.644e-08
15-150  5.164e-08   2.896e-08
Plot creation:
Wed Jan 29 17:58:31 EST 2014