batgrbproduct Analysis for Trigger=530588

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Aug 11 13:20:55 EDT 2012
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger530588/GCN5_download_cron
======================================================================

  Trigger: 00530588      Segment: 000

  BAT Trigger Time: 366353043.328   [s; MET]
      Trigger Stop: 366353047.424   [s; MET]
               UTC: 2012-08-11T04:43:53.803660    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 266.257500459977   Dec: -28.8524616562762  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    7.46
     Image Trigger?:     NO
     Rate S/N Ratio:     13.856406460551  [ if not an image trigger ]
     Image S/N Ratio:    7.46

  Flight Position:   [ source = BAT ]
    RA: 266.257500459977   Dec: -28.8524616562762  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 266.276659041985   Dec: -28.8276636683738  [deg; J2000]  
        { 17h 45m 06.4s , -28d 49' 39.6" }
         +/- 2.82587966223358 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.41985614316974 [arcmin] (formal 1-sigma fit error)
    SNR: 6.89625236560265
 
  Angular difference between Flight and Ground position is 1.796584 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 69.6320000290871 +/- 16.7808195477138
        Measured from: -48.0319998860359
                   to: 21.6000001430511     [s; relative to TRIGTIME]
     T50: 27.5199999809265 +/- 12.2037109383377
        Measured from: -22.4959998726845
                   to: 5.02400010824203     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.27599996328354     
                   to: 4.27599996328354     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -49.5680000185966     
                   to: 27.4879999756813     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.957026   0.067347   0.002644  -0.001717
           0.052391   0.046005   0.039385   0.035726 [error]
 Peak      0.043119   0.008987   0.001733  -0.002164
           0.006388   0.005323   0.004460   0.004041 [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 2.65e-07 3.58e-08 2.14e-09 1.36e-10 3.03e-07 3.03e-07   erg/cm2
              Error 3.70e-08 1.44e-08 2.02e-09 2.52e-10 4.50e-08 4.50e-08   erg/cm2
Peak flux Power-law 3.96e-01 1.03e-01 1.41e-02 2.18e-03 5.15e-01 5.15e-01   ph/cm2/s
              Error 9.77e-02 4.84e-02 1.67e-02 4.60e-03 1.29e-01 1.30e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.83e-07 1.66e-08 3.49e-12 2.94e-20 2.99e-07 0.00e+00   erg/cm2
              Error 4.16e-08 1.96e-08 8.11e-10 0.00e+00 4.17e-08 0.00e+00   erg/cm2
Peak flux Cutoff-PL 4.28e-01 8.09e-02 1.80e-04 1.05e-10 5.09e-01 5.09e-01   ph/cm2/s
              Error 1.08e-01 5.61e-02 1.21e-02 0.00e+00 1.22e-01 1.22e-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    6.061    0.704    -      -           3.00e-05 2.29e-05   57.190 57
CPL   1.000    0.000      50.0    0.0      9.08e-04 0.00e+00  173.770 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.867    0.879    -      -           9.37e-04 7.68e-04   41.330 57
CPL   1.000    0.000      50.0    0.0      7.66e-03 0.00e+00   66.580 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   77.056  -49.568   27.488
T90    69.632  -48.032   21.600
T50    27.520  -22.496    5.024
Peak    1.000    3.276    4.276

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  266.2767 -28.8277 0.0278    0.2  -17.6       1.0277     6.9  TRIG_00530588       
------------------------------------------
 
Foreground time interval of the image:
-49.568  27.488 (delta_t =  77.056 [sec])
Background time interval of the image:
-92.027 -49.568 (delta_t =  42.459 [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  -49.568 sec. to   27.488 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 6.06069     ( -0.672638   0.735452 )
Norm@50keV  : 3.00041E-05    ( -1.64983e-05   2.93352e-05 )
------------------------------------------------------------
# Chi-Squared =          57.19 using 59 PHA bins.
# Reduced chi-squared =          1.003 for     57 degrees of freedom 
# Null hypothesis probability =   4.680965e-01
 
Photon flux (15-150 keV)    in 77.06 sec: 0.131239 ( -0.0184597  0.0184642 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.0284e-07 ( -4.4795e-08  4.52279e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -49.568 sec. to   27.488 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 9.07774E-04    (     )
------------------------------------------------------------
# Chi-Squared =         173.77 using 59 PHA bins.
# Reduced chi-squared =         3.1030 for     56 degrees of freedom 
# Null hypothesis probability =   5.496101e-14
 
Photon flux (15-150 keV)    in 77.06 sec: 0.134073 ( -0.018619  0.018758 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.99377e-07 ( -4.16779e-08  4.17997e-08 ) ergs/cm2
 
Band function
Time interval is from  -49.568 sec. to   27.488 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -8.30257   ( 3.28998   5.49713 )
beta        : -6.05932    ( -1.451   -0.042386 )
Epeak [keV] : 566.968      ( -566.968 -566.968 )
Norm@50keV   : 4.08373E-03    ( -0.00224816   0.0039813 )
------------------------------------------------------------
# Chi-Squared =          57.19 using 59 PHA bins.
# Reduced chi-squared =          1.040 for     55 degrees of freedom 
# Null hypothesis probability =   3.938417e-01
 
Photon flux (15-150 keV)    in 77.06 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]    : 2.35401  (-0.272717  0.321522)
R^2/D10^2   : 105.027  (-65.3355   177.91)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          54.06 using 59 PHA bins.
# Reduced chi-squared =         0.9484 for     57 degrees of freedom 
# Null hypothesis probability =   5.860904e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.835e-07   1.137e-07
25- 50  1.624e-08   9.829e-09
50-150  2.792e-12   2.904e-12
15-150  2.997e-07   1.137e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 4.14879       (-0.701386      0.906282)
Norm        : 64.1122       (-35.3251     85.5264)
------------------------------------------------------------
# Chi-Squared =          54.36 using 59 PHA bins.
# Reduced chi-squared =         0.9537 for     57 degrees of freedom 
# Null hypothesis probability =   5.747316e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.782e-07   1.135e-07
25- 50  2.232e-08   1.089e-08
50-150  4.121e-11   4.103e-11
15-150  3.005e-07   1.238e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.35707        (-0.274729      0.319643)
R1^2/D10^2  : 104.089        (-64.8771      178.877)
kT2 [keV]   : 199.363        (-200      -200)
R2^2/D10^2  : 2.15028E-15    (-2.56804e-18   0.000685256)
------------------------------------------------------------
# Chi-Squared =          54.06 using 59 PHA bins.
# Reduced chi-squared =         0.9829 for     55 degrees of freedom 
# Null hypothesis probability =   5.105349e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.837e-07   1.564e-07
25- 50  1.634e-08   9.863e-09
50-150  2.849e-12   3.057e-12
15-150  3.001e-07   1.456e-07

Peak spectrum fit

Power-law model
Time interval is from    3.276 sec. to    4.276 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.86704     ( -0.756044   1.00174 )
Norm@50keV  : 9.36536E-04    ( -0.000612039   0.00092388 )
------------------------------------------------------------
# Chi-Squared =          41.33 using 59 PHA bins.
# Reduced chi-squared =         0.7251 for     57 degrees of freedom 
# Null hypothesis probability =   9.411905e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.514733 ( -0.128813  0.129681 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.87617e-08 ( -5.60579e-09  6.3333e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    3.276 sec. to    4.276 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 7.65750E-03    (     )
------------------------------------------------------------
# Chi-Squared =          66.58 using 59 PHA bins.
# Reduced chi-squared =          1.189 for     56 degrees of freedom 
# Null hypothesis probability =   1.574222e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.508983 ( -0.121584  0.122502 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.67352e-08 ( -4.2479e-09  4.2337e-09 ) ergs/cm2
 
Band function
Time interval is from    3.276 sec. to    4.276 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -7.83514   ( 0.806616   4.89395 )
beta        : -3.86701    ( -0.999958   0.756325 )
Epeak [keV] : 12.5653      ( -12.5653 -12.5653 )
Norm@50keV   : 0.127292    ( -0.0831874   0.125566 )
------------------------------------------------------------
# Chi-Squared =          41.33 using 59 PHA bins.
# Reduced chi-squared =         0.7515 for     55 degrees of freedom 
# Null hypothesis probability =   9.139217e-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]    : 3.84671  (-0.786678  0.942296)
R^2/D10^2   : 17.0055  (-17.0055   43.8311)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          39.61 using 59 PHA bins.
# Reduced chi-squared =         0.6949 for     57 degrees of freedom 
# Null hypothesis probability =   9.614321e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.276e-08   7.225e-09
25- 50  4.114e-09   2.650e-09
50-150  3.931e-11   3.902e-11
15-150  1.691e-08   1.000e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 9.21863       (-3.13647      5.46181)
Norm        : 21.2651       (-11.9656     36.042)
------------------------------------------------------------
# Chi-Squared =          40.25 using 59 PHA bins.
# Reduced chi-squared =         0.7061 for     57 degrees of freedom 
# Null hypothesis probability =   9.546371e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.232e-08   6.915e-09
25- 50  4.739e-09   3.022e-09
50-150  2.585e-10   2.637e-10
15-150  1.732e-08   9.600e-09
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.82474        (-3.82458      0.93051)
R1^2/D10^2  : 17.4587        (-17.466      45.6525)
kT2 [keV]   : 199.359        (-199.996      -199.996)
R2^2/D10^2  : 1.32707E-05    (-1.33365e-05   0.00190687)
------------------------------------------------------------
# Chi-Squared =          39.29 using 59 PHA bins.
# Reduced chi-squared =         0.7143 for     55 degrees of freedom 
# Null hypothesis probability =   9.457700e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.274e-08   7.215e-09
25- 50  4.180e-09   2.577e-09
50-150  3.551e-09   4.053e-11
15-150  2.047e-08   9.650e-09
Plot creation:
Sat Aug 11 13:42:36 EDT 2012