batgrbproduct analysis for trigger=103647

batgrbproduct Analysis for Trigger=103647

Analysis Summary

Notes:

1) No attempt has been made to eliminate the non-significant decimal places.
2) This batgrbproduct analysis is done using the HEASARC data.
3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jan 22 23:13:56 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger103647
======================================================================

  Trigger: 00103647      Segment: 000

  BAT Trigger Time: 128259002.24   [s; MET]
      Trigger Stop: 128259002.752   [s; MET]
               UTC: 2005-01-24T11:30:02.876080    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 192.87863931207   Dec: 13.0264315169755  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    17
     Image Trigger?:     NO
     Rate S/N Ratio:     42.2729227756965  [ if not an image trigger ]
     Image S/N Ratio:    17

  Flight Position:   [ source = BAT ]
    RA: 192.87863931207   Dec: 13.0264315169755  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 192.875882681784   Dec: 13.0408194360131  [deg; J2000]  
        { 12h 51m 30.2s , +13d 02' 26.9" }
         +/- 0.905662046806876 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.308762029304607 [arcmin] (formal 1-sigma fit error)
    SNR: 35.0425161666131
 
  Angular difference between Flight and Ground position is 0.878185 arcmin
 
  Partial Coding Fraction: 0.3007812    [ including projection effects ]

  Duration
     T90: 3.9360000193119 +/- 2.01171369047144
        Measured from: -1.13199999928474
                   to: 2.80400002002716     [s; relative to TRIGTIME]
     T50: 1.88400000333786 +/- 0.384187448567675
        Measured from: 0.204000011086464
                   to: 2.08800001442432     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.096000000834465     
                   to: 0.903999999165535     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -3.89599999785423     
                   to: 3.06800000369549     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.388205   0.626275   0.573996   0.138226
           0.028062   0.030724   0.027313   0.019497 [error]
 Peak      0.121458   0.263133   0.230848   0.053804
           0.012221   0.014354   0.013864   0.008869 [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 1.48e-07 2.87e-07 4.32e-07 1.41e-06 1.22e-06 2.28e-06   erg/cm2
              Error 1.39e-08 1.66e-08 2.59e-08 1.82e-07 6.53e-08 1.98e-07   erg/cm2
Peak flux Power-law 1.68e+00 1.89e+00 1.52e+00 2.04e+00 5.83e+00 7.12e+00   ph/cm2/s
              Error 1.84e-01 1.33e-01 1.07e-01 2.83e-01 3.74e-01 4.49e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.26e-07 3.04e-07 4.65e-07 6.23e-07 1.18e-06 1.52e-06   erg/cm2
              Error 1.72e-08 1.95e-08 3.14e-08 2.46e-07 6.90e-08 2.48e-07   erg/cm2
Peak flux Cutoff-PL 1.34e+00 2.05e+00 1.72e+00 8.86e-01 5.68e+00 5.99e+00   ph/cm2/s
              Error 2.20e-01 1.58e-01 1.39e-01 2.99e-01 3.79e-01 4.75e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 1.38e+00 2.03e+00 1.70e+00 9.82e-01 5.72e+00 6.10e+00   ph/cm2/s
              Error -------- -------- 1.29e-01 -------- -------- --------   ph/cm2/s

 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.410    0.085    -      -           1.81e-02 9.23e-04   55.630 57
CPL   0.694    0.386     100.2   33.0      3.90e-02 1.64e-02   43.840 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.313    0.096    -      -           4.88e-02 3.02e-03   78.420 57
CPL   0.281    0.461      91.1   21.0      1.50e-01 7.76e-02   60.060 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: 2.880000 sec.
T50 in the 50-300 keV band: 1.920000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    6.964   -3.896    3.068
T90     3.936   -1.132    2.804
T50     1.884    0.204    2.088
Peak    1.000   -0.096    0.904

Click here for the BAT GCN circular template

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  192.8759    13.0408   0.0055    43.6231    16.8663         1.8252572     35.043 TRIG_00103647                 
 
Foreground time interval of the image:
 -3.896   3.068 (delta_t =   6.964 [sec])
Background time interval of the image:
-247.139  -3.896 (delta_t = 243.243 [sec])

Lightcurves

Notes:

1) The mask-weighted light curves are using the flight position.
2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
3) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
4) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
5) Time of each bin is in the middle of the bin.

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)

Quad-rate summed light curves (from T0-300s to T0+1000s)

Spectral Evolution

Spectra

Notes:

1) The fitting includes the systematic errors.
2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.

Time averaged spectrum fit using the average DRM

Power-law model

Time interval is from   -3.896 sec. to    3.068 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41049     ( -0.0849033   0.0847294 )
Norm@50keV  : 1.80959E-02    ( -0.000922653   0.000922652 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.63 using 59 PHA bins.
# Reduced chi-squared =         0.9760 for     57 degrees of freedom 
# Null hypothesis probability =   5.264888e-01
 
Photon flux (15-150 keV)    in 6.964 sec: 2.20904 ( -0.120439  0.120725 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.21511e-06 ( -6.52773e-08  6.53661e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -3.896 sec. to    3.068 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.693618     ( -0.403418   0.369503 )
Epeak [keV] : 100.174      ( -18.1893 47.8201 )
Norm@50keV  : 3.90349E-02    ( -0.012499   0.0203288 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.84 using 59 PHA bins.
# Reduced chi-squared =         0.7829 for     56 degrees of freedom 
# Null hypothesis probability =   8.810508e-01
 
Photon flux (15-150 keV)    in 6.964 sec: 2.14063 ( -0.12499  0.12535 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.18056e-06 ( -6.91525e-08  6.87834e-08 ) ergs/cm2

Band function

Time interval is from   -3.896 sec. to    3.068 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.702019   ( -0.349399   0.271152 )
beta        : -9.34172    ( 9.37136   19.3714 )
Epeak [keV] : 100.762      ( -12.7165 46.3988 )
Norm@50keV   : 3.86729E-02    ( -0.0120179   0.00992849 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.84 using 59 PHA bins.
# Reduced chi-squared =         0.7971 for     55 degrees of freedom 
# Null hypothesis probability =   8.601388e-01
 
Photon flux (15-150 keV)    in 6.964 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]    : 17.2874  (-1.01968  1.09997)
R^2/D10^2   : 0.160682  (-0.0314555   0.0384397)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          96.14 using 59 PHA bins.
# Reduced chi-squared =          1.687 for     57 degrees of freedom 
# Null hypothesis probability =   9.162056e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.779e-08   6.532e-09
25- 50  3.039e-07   2.204e-08
50-150  6.519e-07   5.871e-08
15-150  1.024e-06   6.024e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 9.27960       (-0.473793     0.473721)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.01 using 59 PHA bins.
# Reduced chi-squared =          1.018 for     57 degrees of freedom 
# Null hypothesis probability =   4.379746e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.610e-07   9.297e-09
25- 50  3.096e-07   1.786e-08
50-150  6.791e-07   1.103e-07
15-150  1.150e-06   7.382e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.48697        (-2.33925      2.58191)
R1^2/D10^2  : 0.986024        (-0.494749      1.67405)
kT2 [keV]   : 26.6534        (-4.78338      10.7005)
R2^2/D10^2  : 2.73493E-02    (-0.0196391   0.0238043)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.59 using 59 PHA bins.
# Reduced chi-squared =         0.8471 for     55 degrees of freedom 
# Null hypothesis probability =   7.829165e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.158e-07   3.213e-08
25- 50  3.130e-07   6.713e-08
50-150  7.489e-07   1.878e-07
15-150  1.178e-06   2.746e-07

Peak spectrum fit

Power-law model

Time interval is from   -0.096 sec. to    0.904 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.31272     ( -0.0964218   0.096371 )
Norm@50keV  : 4.87874E-02    ( -0.00301808   0.003018 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.42 using 59 PHA bins.
# Reduced chi-squared =          1.376 for     57 degrees of freedom 
# Null hypothesis probability =   3.149402e-02
 
Photon flux (15-150 keV)    in 1 sec: 5.83435 ( -0.374017  0.37449 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.80628e-07 ( -3.18842e-08  3.19526e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.096 sec. to    0.904 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.281032     ( -0.48531   0.437056 )
Epeak [keV] : 91.0542      ( -13.8988 28.1522 )
Norm@50keV  : 0.149767    ( -0.0554464   0.0997169 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.06 using 59 PHA bins.
# Reduced chi-squared =          1.073 for     56 degrees of freedom 
# Null hypothesis probability =   3.307577e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.67929 ( -0.37897  0.37956 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.65727e-07 ( -3.3596e-08  3.3469e-08 ) ergs/cm2

Band function

Time interval is from   -0.096 sec. to    0.904 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.280748   ( -0.36408   0.469387 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 91.0328      ( -10.0106 28.1223 )
Norm@50keV   : 0.149815    ( -0.0554519   0.099808 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.06 using 59 PHA bins.
# Reduced chi-squared =          1.092 for     55 degrees of freedom 
# Null hypothesis probability =   2.973816e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.71689 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.65981e-07 ( -4.65974e-07  -3.2813e-08 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 17.6655  (-1.22186  1.32968)
R^2/D10^2   : 0.419798  (-0.0928997   0.117042)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          87.01 using 59 PHA bins.
# Reduced chi-squared =          1.526 for     57 degrees of freedom 
# Null hypothesis probability =   6.402793e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.639e-08   2.980e-09
25- 50  1.203e-07   9.850e-09
50-150  2.711e-07   2.695e-08
15-150  4.178e-07   3.255e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 24.5146       (-1.52669     1.52651)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          87.71 using 59 PHA bins.
# Reduced chi-squared =          1.539 for     57 degrees of freedom 
# Null hypothesis probability =   5.564049e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.106e-08   4.505e-09
25- 50  1.174e-07   9.850e-09
50-150  2.576e-07   5.275e-08
15-150  4.361e-07   6.905e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.54540        (-2.33133      2.60865)
R1^2/D10^2  : 1.75125        (-0.783135      1.96869)
kT2 [keV]   : 27.7469        (-5.24516      11.6565)
R2^2/D10^2  : 6.47768E-02    (-0.0477442   0.0747496)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.93 using 59 PHA bins.
# Reduced chi-squared =          1.053 for     55 degrees of freedom 
# Null hypothesis probability =   3.677078e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.011e-08   1.270e-08
25- 50  1.230e-07   3.462e-08
50-150  3.061e-07   1.258e-07
15-150  4.691e-07   1.653e-07

Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)

Power-law model

 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41049     ( -0.0849033   0.0847294 )
Norm@50keV  : 1.80959E-02    ( -0.000922653   0.000922652 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.63 using 59 PHA bins.
# Reduced chi-squared =         0.9760 for     57 degrees of freedom 
# Null hypothesis probability =   5.264888e-01
 
Photon flux (15-150 keV)    in 6.964 sec: 2.20904 ( -0.120439  0.120725 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.21511e-06 ( -6.52773e-08  6.53661e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.693618     ( -0.403418   0.369503 )
Epeak [keV] : 100.174      ( -18.1893 47.8201 )
Norm@50keV  : 3.90349E-02    ( -0.012499   0.0203288 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.84 using 59 PHA bins.
# Reduced chi-squared =         0.7829 for     56 degrees of freedom 
# Null hypothesis probability =   8.810508e-01
 
Photon flux (15-150 keV)    in 6.964 sec: 2.14063 ( -0.12499  0.12535 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.18056e-06 ( -6.91525e-08  6.87834e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.702019   ( -0.349399   0.271152 )
beta        : -9.34172    ( 9.37136   19.3714 )
Epeak [keV] : 100.762      ( -12.7165 46.3988 )
Norm@50keV   : 3.86729E-02    ( -0.0120179   0.00992849 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.84 using 59 PHA bins.
# Reduced chi-squared =         0.7971 for     55 degrees of freedom 
# Null hypothesis probability =   8.601388e-01
 
Photon flux (15-150 keV)    in 6.964 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2

S(25-50 keV) vs. S(50-100 keV) plot

S(25-50 keV)  = 2.87e-07
S(50-100 keV) = 4.32e-07

T90 vs. Hardness ratio plot

T90                                   = 3.9360000193119 sec.
Hardness ratio (energy fluence ratio) = 1.50523

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.61326
Count Ratio (50-100 keV) / (15-25 keV) = 1.47859

Mask shadow pattern

IMX = 9.120613952192284E-01, IMY = -2.765190724908820E-01

TIME vs. PHA plot around the trigger time

TIME vs. DetID plot around the trigger time

100 us light curve (15-350 keV)

Spacecraft aspect plot

Bright source in the pre-burst/pre-slew/post-slew images

Pre-burst image of 15-350 keV band

Time interval of the image:
-247.139400 -3.896000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4970  35.1569    9.8  35.6  -84.6   0.5275   1.2   11.3	Her X-1                       
168.7449  65.5074    3.0  23.3  126.4   0.6618   3.9 ------	UNKNOWN                       
279.6693  64.7972    3.0  34.5 -144.4   0.7772   3.8 ------	UNKNOWN

Pre-slew background subtracted image of 15-350 keV band

Time interval of the image:
-3.896000 3.068000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.2839  35.3620    7.6  35.4  -84.6   0.0840   1.5    8.6	Her X-1                       
104.7018  66.3484    2.3  47.2  139.4   0.5187   5.0 ------	UNKNOWN                       
192.8759  13.0408    0.3  43.6   16.9   1.8252  35.0 ------	UNKNOWN                       
 23.7566  68.7176    2.5  56.9  174.1   0.7145   4.6 ------	UNKNOWN                       
259.0330  49.4821    2.1  29.5 -109.7   0.2063   5.5 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
-299.240000 302.840000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4458  35.1916   18.9  35.6  -84.6   0.6207   0.6    9.1	Her X-1                       
151.5641  49.0652    2.5  36.0   97.7   3.3146   4.7 ------	UNKNOWN

Plot creation:
Sun May 31 17:42:36 EDT 2015