batgrbproduct Analysis for Trigger=650221

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jul 26 06:04:30 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger650221/GCN5_download_cron
======================================================================

  Trigger: 00650221      Segment: 000

  BAT Trigger Time: 459483139.84   [s; MET]
      Trigger Stop: 459483148.032   [s; MET]
               UTC: 2015-07-25T02:12:04.940340    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 7.25560198770997   Dec: 59.5957626978837  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    7.07
     Image Trigger?:     NO
     Rate S/N Ratio:     10.0995049383621  [ if not an image trigger ]
     Image S/N Ratio:    7.07

  Flight Position:   [ source = BAT ]
    RA: 7.25560198770997   Dec: 59.5957626978837  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 7.30005446378306   Dec: 59.4958943320221  [deg; J2000]  
        { 00h 29m 12.0s , +59d 29' 45.2" }
         +/- 4.88403910997031 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.70165677167783 [arcmin] (formal 1-sigma fit error)
    SNR: 3.1560813580062
 
  Angular difference between Flight and Ground position is 6.142699 arcmin
 
  Partial Coding Fraction: 0.3203125    [ including projection effects ]

  Duration
     T90: 351.011999964714 +/- 193.905595416726
        Measured from: 0.0440001487731934
                   to: 351.056000113487     [s; relative to TRIGTIME]
     T50: 166.215999960899 +/- 247.506543973497
        Measured from: 5.4400001168251
                   to: 171.656000077724     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 5.9200000166893     
                   to: 6.9200000166893     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.811999976634979     
                   to: 425.540000021458     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.382014   0.566159   0.009014   0.150828
           0.129296   0.127870   0.109559   0.095271 [error]
 Peak      0.044614   0.018912   0.007900   0.012355
           0.010903   0.009916   0.008879   0.007331 [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 5.49e-07 2.36e-07 6.02e-08 1.89e-08 8.56e-07 8.64e-07   erg/cm2
              Error 9.16e-08 7.85e-08 4.52e-08 2.90e-08 1.67e-07 1.75e-07   erg/cm2
Peak flux Power-law 5.94e-01 1.71e-01 2.68e-02 4.81e-03 7.96e-01 7.98e-01   ph/cm2/s
              Error 2.43e-01 1.51e-01 5.27e-02 2.72e-02 3.10e-01 3.13e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.53e-07 2.33e-07 3.66e-08 2.13e-09 8.20e-07 8.25e-07   erg/cm2
              Error 9.36e-08 8.70e-08 4.01e-08 2.73e-08 1.76e-07 1.84e-07   erg/cm2
Peak flux Cutoff-PL 6.09e-01 1.49e-01 1.89e-02 2.69e-03 7.80e-01 7.80e-01   ph/cm2/s
              Error -------- 1.52e-01 -------- 2.73e-02 2.98e-01 3.12e-01   ph/cm2/s
 
Fluence        Band 5.17e-06 9.82e-07 9.04e-08 8.99e-09 6.27e-06 6.26e-06   erg/cm2
              Error 8.60e-07 -------- -------- -------- 1.22e-06 1.22e-06   erg/cm2
Peak flux      Band 5.88e-01 7.08e-02 3.67e-03 2.15e-04 6.66e-01 6.57e-01   ph/cm2/s
              Error -------- -------- 5.03e-02 2.75e-02 -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.969    0.626    -      -           9.36e-05 5.37e-05   62.580 57
CPL   1.000    0.000      50.0    0.0      7.87e-04 0.00e+00  118.260 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    3.650    2.534    -      -           1.74e-03 2.40e-03   47.000 57
CPL   1.834    0.000       7.6    0.0      1.14e-02 0.00e+00   49.140 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  426.352   -0.812  425.540
T90   351.012    0.044  351.056
T50   166.216    5.440  171.656
Peak    1.000    5.920    6.920

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
    7.3001 +59.4959 0.0610   42.4  -41.0       0.4337     3.2  TRIG_00650221       
------------------------------------------
 
Foreground time interval of the image:
 -0.812  46.861 (delta_t =  47.673 [sec])
Background time interval of the image:
-239.840  -0.812 (delta_t = 239.028 [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
Multiple GTIs in the spectrum
tstart tstop
-0.812000 90.690000
92.160000 425.540000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.96900     ( -0.567076   0.685577 )
Norm@50keV  : 9.35849E-05    ( -4.60762e-05   6.14074e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.58 using 59 PHA bins.
# Reduced chi-squared =          1.098 for     57 degrees of freedom 
# Null hypothesis probability =   2.849107e-01
 
Photon flux (15-150 keV)    in 424.9 sec: 5.61726E-02 ( -0.00895507  0.00896574 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.56454e-07 ( -1.60729e-07  1.72576e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
-0.812000 90.690000
92.160000 425.540000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 7.86569E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         118.26 using 59 PHA bins.
# Reduced chi-squared =         2.1118 for     56 degrees of freedom 
# Null hypothesis probability =   2.380352e-06
 
Photon flux (15-150 keV)    in 424.9 sec: 5.55215E-02 ( -0.0089294  0.0089728 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.19972e-07 ( -1.53533e-07  1.99406e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
-0.812000 90.690000
92.160000 425.540000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -8.20791   ( 8.20791   8.20791 )
beta        : -3.96900    ( -0.684643   0.566712 )
Epeak [keV] : 6.44811      ( -6.44811 -6.44811 )
Norm@50keV   : 1.27195E-02    ( -0.00626235   0.00834618 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.58 using 59 PHA bins.
# Reduced chi-squared =          1.138 for     55 degrees of freedom 
# Null hypothesis probability =   2.252068e-01
 
Photon flux (15-150 keV)    in 424.9 sec: 0.348582 ( 6.65142  -0.348582 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.26592e-06 ( -6.26294e-06  -1.19422e-06 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 3.94339  (-0.708111  0.826696)
R^2/D10^2   : 1.52528  (-0.964221   3.16878)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.69 using 59 PHA bins.
# Reduced chi-squared =          1.152 for     57 degrees of freedom 
# Null hypothesis probability =   2.011814e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.499e-07   2.550e-07
25- 50  1.906e-07   9.069e-08
50-150  2.124e-09   1.875e-09
15-150  7.426e-07   3.257e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 9.59388       (-2.66122      3.49504)
Norm        : 2.08353       (-0.997094     2.39108)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.87 using 59 PHA bins.
# Reduced chi-squared =          1.103 for     57 degrees of freedom 
# Null hypothesis probability =   2.763540e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.527e-07   1.710e-07
25- 50  2.249e-07   9.282e-08
50-150  1.375e-08   1.202e-08
15-150  7.913e-07   2.573e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.67138        (-1.25655      1.61963)
R1^2/D10^2  : 249.379        (-278.8      -281.942)
kT2 [keV]   : 5.16663        (-1.28216      2.38399)
R2^2/D10^2  : 0.303497    (-0.302134   0.605996)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.05 using 59 PHA bins.
# Reduced chi-squared =          1.110 for     55 degrees of freedom 
# Null hypothesis probability =   2.676282e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.335e-07   2.339e-07
25- 50  2.543e-07   1.441e-07
50-150  1.200e-08   9.205e-09
15-150  7.999e-07   3.850e-07

Peak spectrum fit

Power-law model
Time interval is from    5.920 sec. to    6.920 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.65010     ( -1.33883   3.7299 )
Norm@50keV  : 1.74096E-03    ( -0.0017088   0.0030955 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.00 using 59 PHA bins.
# Reduced chi-squared =         0.8245 for     57 degrees of freedom 
# Null hypothesis probability =   8.249766e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.795504 ( -0.3322  0.288741 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.99523e-08 ( -1.64307e-08  1.87181e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    5.920 sec. to    6.920 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.83384     (     )
Epeak [keV] : 7.62813      (   )
Norm@50keV  : 1.14342E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.14 using 59 PHA bins.
# Reduced chi-squared =         0.8774 for     56 degrees of freedom 
# Null hypothesis probability =   7.302284e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.779901 ( -0.319639  0.276319 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.07342e-08 ( -1.7274e-08  1.79089e-08 ) ergs/cm2
 
Band function
Time interval is from    5.920 sec. to    6.920 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -2.63133   ( 0.811179   2.62002 )
beta        : -3.74502    ( 0.807002   -2.35696 )
Epeak [keV] : 146.792      ( -146.792 -146.792 )
Norm@50keV   : 0.336743    ( 421.12   -0.309779 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.00 using 59 PHA bins.
# Reduced chi-squared =         0.8545 for     55 degrees of freedom 
# Null hypothesis probability =   7.700217e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.666402 (    ) 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]    : 2.37437  (-0.929415  1.64348)
R^2/D10^2   : 467.840  (-473.14   31965.6)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.30 using 59 PHA bins.
# Reduced chi-squared =         0.8650 for     57 degrees of freedom 
# Null hypothesis probability =   7.557830e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.750e-08   1.034e-08
25- 50  1.039e-09   7.500e-10
50-150  1.955e-13   2.651e-13
15-150  1.854e-08   1.114e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 4.75170       (-2.57551      55.2708)
Norm        : 183.942       (-185.594     8073.96)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.96 using 59 PHA bins.
# Reduced chi-squared =         0.8589 for     57 degrees of freedom 
# Null hypothesis probability =   7.669517e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.768e-08   1.077e-08
25- 50  1.987e-09   1.436e-09
50-150  7.914e-12   1.058e-11
15-150  1.967e-08   1.179e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.96725        (-1.04103      1.18379)
R1^2/D10^2  : 1521.78        (-3256.67      6.54262e+06)
kT2 [keV]   : 12.5166        (-5.18438      10.5959)
R2^2/D10^2  : 9.43662E-02    (-0.0975276   0.850216)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.26 using 59 PHA bins.
# Reduced chi-squared =         0.7684 for     55 degrees of freedom 
# Null hypothesis probability =   8.959416e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.522e-08   8.985e-09
25- 50  1.066e-08   6.590e-09
50-150  1.002e-08   7.125e-09
15-150  3.589e-08   1.942e-08
Plot creation:
Sun Jul 26 06:08:38 EDT 2015