batgrbproduct Analysis for Trigger=556587

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat May 25 04:11:31 EDT 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger556587/GCN5_download_cron
======================================================================

  Trigger: 00556587      Segment: 000

  BAT Trigger Time: 391132384   [s; MET]
      Trigger Stop: 391132448   [s; MET]
               UTC: 2013-05-24T23:52:53.405860    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 244.986302710241   Dec: -15.6336175889865  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    15.13
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    15.13

  Flight Position:   [ source = BAT ]
    RA: 244.986302710241   Dec: -15.6336175889865  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 244.985439180601   Dec: -15.634205161882  [deg; J2000]  
        { 16h 19m 56.5s , -15d 38' 03.1" }
         +/- 1.37809755954543 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.581624758360514 [arcmin] (formal 1-sigma fit error)
    SNR: 19.2374278211055
 
  Angular difference between Flight and Ground position is 0.061093 arcmin
 
  Partial Coding Fraction: 0.078125    [ including projection effects ]

  Duration
     T90: 224 +/- 16
        Measured from: -78.9999998807907
                   to: 145.000000119209     [s; relative to TRIGTIME]
     T50: 112 +/- 16
        Measured from: -14.9999998807907
                   to: 97.0000001192093     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 56.5     
                   to: 57.5     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -79     
                   to: 161     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    21.840129   2.377244   0.460130  -0.124175
           0.385400   0.315715   0.264376   0.240409 [error]
 Peak      0.137349   0.023576  -0.030910  -0.008738
           0.028217   0.022184   0.018889   0.015548 [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 8.12e-06 1.24e-06 8.65e-08 6.45e-09 9.45e-06 9.45e-06   erg/cm2
              Error 7.59e-07 1.76e-07 3.20e-08 4.15e-09 7.42e-07 7.42e-07   erg/cm2
Peak flux Power-law 1.56e+00 1.58e-01 6.56e-03 2.82e-04 1.73e+00 1.73e+00   ph/cm2/s
              Error 5.37e-01 1.87e-01 2.25e-02 3.13e-03 6.49e-01 6.49e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.00e-06 1.06e-06 1.20e-08 4.38e-12 9.07e-06 9.07e-06   erg/cm2
              Error 8.08e-07 2.31e-07 3.84e-08 1.81e-09 8.32e-07 8.32e-07   erg/cm2
Peak flux Cutoff-PL 1.56e+00 1.58e-01 6.54e-03 2.80e-04 1.73e+00 1.72e+00   ph/cm2/s
              Error 5.62e-01 1.87e-01 2.22e-02 1.89e-03 6.49e-01 6.50e-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    5.838    0.338    -      -           3.71e-04 1.11e-04   81.180 57
CPL   1.000    0.000      50.0    0.0      5.90e-03 0.00e+00  460.930 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    5.595    2.077    -      -           6.29e-04 1.55e-03   48.950 57
CPL   1.000    0.000      50.0    0.0      1.66e-02 0.00e+00   67.700 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  240.000  -79.000  161.000
T90   224.000  -79.000  145.000
T50   112.000  -15.000   97.000
Peak    1.000   56.500   57.500

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  244.9854 -15.6342 0.0100   38.4   79.5      19.6580    19.2  TRIG_00556587       
------------------------------------------
 
Foreground time interval of the image:
-15.799 161.000 (delta_t = 176.799 [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
Time interval is from  -79.000 sec. to  161.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 5.83828     ( -0.335133   0.340424 )
Norm@50keV  : 3.71451E-04    ( -9.77111e-05   0.000123413 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.18 using 59 PHA bins.
# Reduced chi-squared =          1.424 for     57 degrees of freedom 
# Null hypothesis probability =   1.937499e-02
 
Photon flux (15-150 keV)    in 240 sec: 1.30022 ( -0.112902  0.114208 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.45101e-06 ( -7.38869e-07  7.45166e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -79.000 sec. to  161.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 5.90394E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         460.93 using 59 PHA bins.
# Reduced chi-squared =         8.2309 for     56 degrees of freedom 
# Null hypothesis probability =   5.218509e-65
 
Photon flux (15-150 keV)    in 240 sec: 1.25715 ( -0.12618  0.12407 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.07181e-06 ( -8.37768e-07  8.2596e-07 ) ergs/cm2
 
Band function
Time interval is from  -79.000 sec. to  161.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -7.12888   ( 4.44269   7.12888 )
beta        : -5.87097    ( -0.316816   0.361315 )
Epeak [keV] : 290.772      ( -290.772 -290.772 )
Norm@50keV   : 4.90049E-02    ( -0.0124502   0.0176624 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.21 using 59 PHA bins.
# Reduced chi-squared =          1.477 for     55 degrees of freedom 
# Null hypothesis probability =   1.231976e-02
 
Photon flux (15-150 keV)    in 240 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]    : 2.78854  (-0.180172  0.20085)
R^2/D10^2   : 273.545  (-113.859   192.961)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.75 using 59 PHA bins.
# Reduced chi-squared =          1.452 for     57 degrees of freedom 
# Null hypothesis probability =   1.454869e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.681e-06   1.256e-06
25- 50  8.611e-07   1.482e-07
50-150  7.488e-10   4.267e-10
15-150  8.544e-06   1.304e-06
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 4.99479       (-0.469247      0.550362)
Norm        : 286.391       (-100.606     156.206)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.59 using 59 PHA bins.
# Reduced chi-squared =          1.379 for     57 degrees of freedom 
# Null hypothesis probability =   3.058961e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.907e-06   1.073e-06
25- 50  9.969e-07   1.748e-07
50-150  5.141e-09   2.711e-09
15-150  8.909e-06   1.136e-06
Double BB
R1^2/D10^2  : 20.1191        (-835.102      -1146.6)
kT2 [keV]   : 2.03907        (      )
R2^2/D10^2  : 1891.84    (-1525.15   -1838.31)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          79.44 using 59 PHA bins.
#Fit statistic : Chi-Squared =          78.01 using 59 PHA bins.
#Fit statistic : Chi-Squared =          77.92 using 59 PHA bins.
# Reduced chi-squared =          1.444 for     55 degrees of freedom 
# Reduced chi-squared =          1.418 for     55 degrees of freedom 
# Reduced chi-squared =          1.417 for     55 degrees of freedom 
# Null hypothesis probability =   1.720082e-02
# Null hypothesis probability =   2.234661e-02
# Null hypothesis probability =   2.270653e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.790e-06   1.415e-06
25- 50  9.725e-07   2.747e-07
50-150  3.768e-07   3.589e-07
15-150  9.139e-06   1.661e-06

Peak spectrum fit

Power-law model
Time interval is from   56.500 sec. to   57.500 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 5.59471     ( -1.61137   2.54306 )
Norm@50keV  : 6.28566E-04    ( -0.000628566   0.0024678 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.95 using 59 PHA bins.
# Reduced chi-squared =         0.8587 for     57 degrees of freedom 
# Null hypothesis probability =   7.672046e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.72794 ( -0.655916  0.642841 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.30615e-08 ( -2.24877e-08  2.41198e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   56.500 sec. to   57.500 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 1.66227E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.70 using 59 PHA bins.
# Reduced chi-squared =          1.209 for     56 degrees of freedom 
# Null hypothesis probability =   1.359586e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.73054 ( -0.6604  0.63792 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.3265e-08 ( -2.27108e-08  2.38687e-08 ) ergs/cm2
 
Band function
Time interval is from   56.500 sec. to   57.500 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.73938   (     )
beta        : -5.80868    (     )
Epeak [keV] : 1.57697      (   )
Norm@50keV   : 6.73340E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.98 using 59 PHA bins.
# Reduced chi-squared =         0.8906 for     55 degrees of freedom 
# Null hypothesis probability =   7.026519e-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]    : 2.40681  (-0.793645  1.0578)
R^2/D10^2   : 1139.94  (-1165.6   29385.3)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.46 using 59 PHA bins.
# Reduced chi-squared =         0.8678 for     57 degrees of freedom 
# Null hypothesis probability =   7.505811e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.723e-08   2.768e-08
25- 50  2.971e-09   2.073e-09
50-150  6.421e-13   9.200e-13
15-150  5.021e-08   2.920e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 4.44638       (-1.98647      4.0771)
Norm        : 623.478       (-623.499     9589.21)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.23 using 59 PHA bins.
# Reduced chi-squared =         0.8637 for     57 degrees of freedom 
# Null hypothesis probability =   7.580820e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.654e-08   2.596e-08
25- 50  4.454e-09   3.093e-09
50-150  1.234e-11   1.518e-11
15-150  5.100e-08   2.953e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.06744        (      )
R1^2/D10^2  : 0.838492        (-1.04707      -1.04707)
kT2 [keV]   : 2.03944        (-2.01082      1.24528)
R2^2/D10^2  : 3494.37    (-3950.55   -3950.55)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.09 using 59 PHA bins.
#Fit statistic : Chi-Squared =          48.69 using 59 PHA bins.
# Reduced chi-squared =         0.8926 for     55 degrees of freedom 
# Reduced chi-squared =         0.8852 for     55 degrees of freedom 
# Null hypothesis probability =   6.986786e-01
# Null hypothesis probability =   7.131240e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.363e-08   1.805e-08
25- 50  6.210e-09   2.074e-09
50-150  2.550e-11   1.368e-11
15-150  4.987e-08   2.246e-08
Plot creation:
Tue May 28 18:49:09 EDT 2013