batgrbproduct analysis for trigger=106107

batgrbproduct Analysis for Trigger=106107

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): Thu Sep 11 20:10:29 EDT 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger106107
======================================================================

  Trigger: 00106107      Segment: 000

  BAT Trigger Time: 130127622.592   [s; MET]
      Trigger Stop: 130127624.64   [s; MET]
               UTC: 2005-02-15T02:33:43.199080    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 174.439240209498   Dec: 40.7963490256769  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8
     Image Trigger?:     NO
     Rate S/N Ratio:     13.2664991614216  [ if not an image trigger ]
     Image S/N Ratio:    8

  Flight Position:   [ source = BAT ]
    RA: 174.439240209498   Dec: 40.7963490256769  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 174.47731727625   Dec: 40.7924461290538  [deg; J2000]  
        { 11h 37m 54.6s , +40d 47' 32.8" }
         +/- 1.75307374839531 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.715784812233141 [arcmin] (formal 1-sigma fit error)
    SNR: 13.6405662562158
 
  Angular difference between Flight and Ground position is 1.745376 arcmin
 
  Partial Coding Fraction: 0.8359375    [ including projection effects ]

  Duration
     T90: 11.0439999997616 +/- 3.93113214071415
        Measured from: -1.53199999034405
                   to: 9.51200000941753     [s; relative to TRIGTIME]
     T50: 4.94000001251698 +/- 1.65830274293752
        Measured from: -0.0319999903440475
                   to: 4.90800002217293     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.80799999833107     
                   to: 0.19200000166893     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -2.07199999690056     
                   to: 13.3680000007153     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.227406   0.177324   0.079327   0.000789
           0.018923   0.019683   0.016980   0.014573 [error]
 Peak      0.020362   0.037140   0.021456   0.003177
           0.004865   0.005123   0.004606   0.003729 [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 6.44e-08 7.51e-08 6.30e-08 8.94e-08 2.35e-07 2.92e-07   erg/cm2
              Error 9.59e-09 9.36e-09 1.53e-08 4.14e-08 3.49e-08 6.12e-08   erg/cm2
Peak flux Power-law 2.20e-01 2.21e-01 1.56e-01 1.75e-01 6.67e-01 7.73e-01   ph/cm2/s
              Error 6.04e-02 4.03e-02 3.58e-02 7.81e-02 1.18e-01 1.41e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.35e-08 7.83e-08 6.00e-08 4.28e-08 2.25e-07 2.45e-07   erg/cm2
              Error 1.01e-08 1.22e-08 1.89e-08 6.59e-08 4.15e-08 8.19e-08   erg/cm2
Peak flux Cutoff-PL 1.80e-01 2.61e-01 1.64e-01 3.84e-02 6.37e-01 6.44e-01   ph/cm2/s
              Error 7.03e-02 5.59e-02 4.57e-02 6.94e-02 1.21e-01 1.33e-01   ph/cm2/s
 
Fluence        Band 6.49e-08 7.64e-08 5.93e-08 7.54e-08 2.29e-07 2.75e-07   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 1.73e-01 2.73e-01 1.53e-01 8.53e-02 6.41e-01 6.83e-01   ph/cm2/s
              Error 7.44e-02 -------- 4.85e-02 -------- 1.21e-01 1.64e-01   ph/cm2/s

 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.253    0.243    -      -           1.60e-03 2.83e-04   62.030 57
CPL   1.911    0.604       9.7    0.0      2.62e-03 0.00e+00   61.610 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.503    0.283    -      -           5.34e-03 9.89e-04   51.440 57
CPL  -0.029    1.634      60.4   52.5      3.60e-02 2.07e-01   47.380 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   15.440   -2.072   13.368
T90    11.044   -1.532    9.512
T50     4.940   -0.032    4.908
Peak    1.000   -0.808    0.192

Click here for the BAT GCN circular template

Special notes of this burst

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  174.4773    40.7924   0.0142    23.9026    21.1757         0.5087080     13.641 TRIG_00106107                 
 
Foreground time interval of the image:
 -2.072  13.368 (delta_t =  15.440 [sec])
Background time interval of the image:
-71.691  -2.072 (delta_t =  69.619 [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   -2.072 sec. to   13.368 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.25266     ( -0.232662   0.253264 )
Norm@50keV  : 1.60335E-03    ( -0.000285953   0.000280015 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.03 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     57 degrees of freedom 
# Null hypothesis probability =   3.016630e-01
 
Photon flux (15-150 keV)    in 15.44 sec: 0.273009 ( -0.0312836  0.0312852 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.34629e-07 ( -3.42475e-08  3.55105e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -2.072 sec. to   13.368 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.91080     ( -1.15606   0.0525531 )
Epeak [keV] : 9.69793      (   )
Norm@50keV  : 2.61861E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.61 using 59 PHA bins.
# Reduced chi-squared =          1.100 for     56 degrees of freedom 
# Null hypothesis probability =   2.824355e-01
 
Photon flux (15-150 keV)    in 15.44 sec: 0.269723 ( -0.032262  0.032135 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.24671e-07 ( -4.02969e-08  4.26468e-08 ) ergs/cm2

Band function

Time interval is from   -2.072 sec. to   13.368 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95031   ( -4.95031   -4.95031 )
beta        : -2.36722    ( -0.398318   0.274534 )
Epeak [keV] : 19.6098      ( -19.6098 4.00293 )
Norm@50keV   : 1532.23    ( -174.971   3.52492e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.82 using 59 PHA bins.
# Reduced chi-squared =          1.106 for     55 degrees of freedom 
# Null hypothesis probability =   2.743267e-01
 
Photon flux (15-150 keV)    in 15.44 sec: 0.270499 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.29174e-07 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 7.73133  (-1.06072  1.22892)
R^2/D10^2   : 0.337408  (-0.150071   0.276214)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.13 using 59 PHA bins.
# Reduced chi-squared =          1.336 for     57 degrees of freedom 
# Null hypothesis probability =   4.605144e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.483e-08   1.015e-08
25- 50  9.036e-08   1.540e-08
50-150  2.118e-08   8.171e-09
15-150  1.664e-07   2.568e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 42.3591       (-11.807      19.0652)
Norm        : 1.69735       (-0.343708     0.479997)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.39 using 59 PHA bins.
# Reduced chi-squared =          1.095 for     57 degrees of freedom 
# Null hypothesis probability =   2.904740e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.130e-08   9.025e-09
25- 50  8.262e-08   1.330e-08
50-150  6.798e-08   2.375e-08
15-150  2.119e-07   3.736e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.03406        (-1.50448      1.59984)
R1^2/D10^2  : 1.46754        (-0.935786      4.59016)
kT2 [keV]   : 17.1908        (-6.04133      16.5116)
R2^2/D10^2  : 9.09166E-03    (-0.00833115   0.034539)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.25 using 59 PHA bins.
# Reduced chi-squared =          1.114 for     55 degrees of freedom 
# Null hypothesis probability =   2.617139e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.504e-08   3.497e-08
25- 50  7.520e-08   3.228e-08
50-150  8.119e-08   5.108e-08
15-150  2.214e-07   1.051e-07

Peak spectrum fit

Power-law model

Time interval is from   -0.808 sec. to    0.192 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50314     ( -0.279322   0.286005 )
Norm@50keV  : 5.33653E-03    ( -0.000994831   0.000983877 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.44 using 59 PHA bins.
# Reduced chi-squared =         0.9025 for     57 degrees of freedom 
# Null hypothesis probability =   6.827396e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.666773 ( -0.118209  0.118292 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.05993e-08 ( -1.01679e-08  1.04004e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.808 sec. to    0.192 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.87051E-02     ( -1.94441   1.32386 )
Epeak [keV] : 60.4434      ( -14.9333 90.1288 )
Norm@50keV  : 3.60401E-02    ( -0.0360412   0.378326 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.38 using 59 PHA bins.
# Reduced chi-squared =         0.8460 for     56 degrees of freedom 
# Null hypothesis probability =   7.872629e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.636506 ( -0.121084  0.121361 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.46068e-08 ( -1.05805e-08  1.15649e-08 ) ergs/cm2

Band function

Time interval is from   -0.808 sec. to    0.192 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 2.87451E-02   ( -0.975473   1.27664 )
beta        : -10.00000    ( 10   3.97757e-07 )
Epeak [keV] : 60.4324      ( -13.903 90.0577 )
Norm@50keV   : 3.60468E-02    ( -0.0062134   0.379998 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.38 using 59 PHA bins.
# Reduced chi-squared =         0.8614 for     55 degrees of freedom 
# Null hypothesis probability =   7.577438e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.641365 ( 6.35863  -0.121296 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.6259e-08 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.4406  (-2.38265  3.01878)
R^2/D10^2   : 0.117620  (-0.0606366   0.117427)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.22 using 59 PHA bins.
# Reduced chi-squared =         0.8635 for     57 degrees of freedom 
# Null hypothesis probability =   7.584479e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.502e-09   1.581e-09
25- 50  1.606e-08   4.763e-09
50-150  1.870e-08   7.737e-09
15-150  3.926e-08   1.139e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 197.939       (-109.181      -197.217)
Norm        : 2.75916       (-0.486607     0.559387)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.90 using 59 PHA bins.
# Reduced chi-squared =         0.8754 for     57 degrees of freedom 
# Null hypothesis probability =   7.361897e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.877e-09   3.991e-09
25- 50  1.322e-08   7.430e-09
50-150  2.892e-08   1.628e-08
15-150  4.901e-08   2.775e-08

Double BB

------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 23.5206        (      )
R1^2/D10^2  : 9.18875E-03        (-0.00938677      0.148797)
kT2 [keV]   : 9.22407        (-9.19488      27.5196)
R2^2/D10^2  : 0.280030    (-0.281625   -0.281625)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.02 using 59 PHA bins.
#Fit statistic : Chi-Squared =          47.00 using 59 PHA bins.
# Reduced chi-squared =         0.8548 for     55 degrees of freedom 
# Reduced chi-squared =         0.8546 for     55 degrees of freedom 
# Null hypothesis probability =   7.694622e-01
# Null hypothesis probability =   7.698415e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.661e-09   3.381e-09
25- 50  1.527e-08   1.052e-08
50-150  2.462e-08   1.425e-08
15-150  4.555e-08   2.423e-08

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: 2.25266     ( -0.232662   0.253264 )
Norm@50keV  : 1.60335E-03    ( -0.000285953   0.000280015 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.03 using 59 PHA bins.
# Reduced chi-squared =          1.088 for     57 degrees of freedom 
# Null hypothesis probability =   3.016630e-01
 
Photon flux (15-150 keV)    in 15.44 sec: 0.273009 ( -0.0312836  0.0312852 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.34629e-07 ( -3.42475e-08  3.55105e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.91080     ( -1.15606   0.0525531 )
Epeak [keV] : 9.69793      (   )
Norm@50keV  : 2.61861E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.61 using 59 PHA bins.
# Reduced chi-squared =          1.100 for     56 degrees of freedom 
# Null hypothesis probability =   2.824355e-01
 
Photon flux (15-150 keV)    in 15.44 sec: 0.269723 ( -0.032262  0.032136 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.24671e-07 ( -4.02969e-08  4.26468e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.95031   ( -4.95031   -4.95031 )
beta        : -2.36722    ( -0.398318   0.274534 )
Epeak [keV] : 19.6098      ( -19.6098 4.00293 )
Norm@50keV   : 1532.23    ( -174.971   3.52492e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.82 using 59 PHA bins.
# Reduced chi-squared =          1.106 for     55 degrees of freedom 
# Null hypothesis probability =   2.743267e-01
 
Photon flux (15-150 keV)    in 15.44 sec: 0.270499 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.29174e-07 ( 0  0 ) ergs/cm2

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

S(25-50 keV)  = 7.51e-08
S(50-100 keV) = 6.30e-08

T90 vs. Hardness ratio plot

T90                                   = 11.0439999997616 sec.
Hardness ratio (energy fluence ratio) = 0.838881

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 0.779768
Count Ratio (50-100 keV) / (15-25 keV) = 0.348834

Mask shadow pattern

IMX = 4.132681404292561E-01, IMY = -1.600943001734747E-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:
-71.691400 -2.072000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6245  22.0103    1.2  53.6 -177.7   2.0880   9.5    0.5	Crab                          
229.7768  45.2144    3.2  55.6  -20.3   0.9095   3.6 ------	UNKNOWN

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

Time interval of the image:
-2.072000 13.368000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6268  22.1477    5.7  53.5 -177.6  -0.2258  -2.0    8.0	Crab                          
174.4773  40.7925    0.8  23.9   21.2   0.5088  13.6 ------	UNKNOWN                       
 94.4224  26.1746    2.0  43.7  176.7   0.3515   5.7 ------	UNKNOWN                       
 73.5283  27.9127    2.0  55.9 -164.6   0.7635   5.7 ------	UNKNOWN                       
110.7233  74.7632    2.2  28.2  -96.0   0.2814   5.3 ------	UNKNOWN                       
 69.9124  35.7603    2.3  53.0 -154.9   0.5475   4.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
86.108600 242.608000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
115.1802  40.9441    2.2  43.9  154.6   0.4629   5.2 ------	UNKNOWN

Plot creation:
Sun May 31 17:32:54 EDT 2015