batgrbproduct analysis for trigger=354299

batgrbproduct Analysis for Trigger=354299

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): Sun Jan 19 16:01:53 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger354299
======================================================================

  Trigger: 00354299      Segment: 000

  BAT Trigger Time: 266045422.208   [s; MET]
      Trigger Stop: 266045422.72   [s; MET]
               UTC: 2009-06-07T05:30:17.401940    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 191.208949448038   Dec: 44.1296441879312  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.44
     Image Trigger?:     NO
     Rate S/N Ratio:     18.8679622641132  [ if not an image trigger ]
     Image S/N Ratio:    6.44

  Flight Position:   [ source = BAT ]
    RA: 191.208949448038   Dec: 44.1296441879312  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 191.191333937601   Dec: 44.1063123603798  [deg; J2000]  
        { 12h 44m 45.9s , +44d 06' 22.7" }
         +/- 1.86012914186531 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.01652124380591 [arcmin] (formal 1-sigma fit error)
    SNR: 12.5330511824791
 
  Angular difference between Flight and Ground position is 1.592323 arcmin
 
  Partial Coding Fraction: 0.96875    [ including projection effects ]

  Duration
     T90: 2.29200002551079 +/- 0.127121992145015
        Measured from: 0.0839999914169312
                   to: 2.37600001692772     [s; relative to TRIGTIME]
     T50: 1.84799998998642 +/- 0.277185829902444
        Measured from: 0.280000001192093
                   to: 2.12799999117851     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.00999999046325684     
                   to: 0.990000009536743     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0600000023841858     
                   to: 2.48800000548363     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.046217   0.054435   0.051471   0.018064
           0.007769   0.008198   0.007523   0.006722 [error]
 Peak      0.028772   0.021631   0.030817   0.009615
           0.005080   0.005306   0.005070   0.004499 [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 1.03e-08 2.34e-08 4.19e-08 1.78e-07 1.14e-07 2.54e-07   erg/cm2
              Error 3.19e-09 4.02e-09 7.57e-09 8.03e-08 1.91e-08 8.40e-08   erg/cm2
Peak flux Power-law 1.66e-01 2.08e-01 1.90e-01 3.01e-01 6.67e-01 8.64e-01   ph/cm2/s
              Error 7.10e-02 4.88e-02 4.37e-02 1.74e-01 1.26e-01 1.84e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.04e-08 2.35e-08 4.18e-08 1.74e-07 1.14e-07 2.50e-07   erg/cm2
              Error 3.19e-09 3.84e-09 7.52e-09 1.00e-07 1.84e-08 8.53e-08   erg/cm2
Peak flux Cutoff-PL 1.65e-01 2.08e-01 1.90e-01 3.02e-01 6.66e-01 8.65e-01   ph/cm2/s
              Error 7.04e-02 4.78e-02 4.33e-02 1.75e-01 1.24e-01 1.84e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s

 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.155    0.299    -      -           4.58e-03 6.55e-04   71.540 57
CPL   1.153    0.276    10000.0    0.0      4.60e-03 0.00e+00   71.580 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.135    0.419    -      -           5.73e-03 1.05e-03   69.430 57
CPL   1.136    0.428    10000.0    0.0      5.75e-03 -2.35e-03   69.460 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: 0.576000 sec.
T50 in the 50-300 keV band: 0.384000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    2.428    0.060    2.488
T90     2.292    0.084    2.376
T50     1.848    0.280    2.128
Peak    1.000   -0.010    0.990

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
  191.1913    44.1063   0.0153    19.9310    -6.7939         0.1831166     12.533 TRIG_00354299                 
 
Foreground time interval of the image:
  0.060   2.488 (delta_t =   2.428 [sec])
Background time interval of the image:
-60.208   0.060 (delta_t =  60.268 [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    0.060 sec. to    2.488 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.15548     ( -0.303173   0.294583 )
Norm@50keV  : 4.57827E-03    ( -0.000655353   0.000655296 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.54 using 59 PHA bins.
# Reduced chi-squared =          1.255 for     57 degrees of freedom 
# Null hypothesis probability =   9.309568e-02
 
Photon flux (15-150 keV)    in 2.428 sec: 0.534259 ( -0.078981  0.0791911 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14252e-07 ( -1.89556e-08  1.91539e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.060 sec. to    2.488 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.15266     ( -0.280109   0.27138 )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 4.60080E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.58 using 59 PHA bins.
# Reduced chi-squared =          1.278 for     56 degrees of freedom 
# Null hypothesis probability =   7.841981e-02
 
Photon flux (15-150 keV)    in 2.428 sec: 0.536810 ( -0.080492  0.077131 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.13901e-07 ( -1.86157e-08  1.81051e-08 ) ergs/cm2

Band function

Time interval is from    0.060 sec. to    2.488 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.976785   ( 0.976769   0.976769 )
beta        : -1.15536    ( 1.15527   0.303535 )
Epeak [keV] : 39.1716      ( -39.2407 -39.2407 )
Norm@50keV   : 7.80861E-03    ( -0.00387996   0.248172 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.54 using 59 PHA bins.
# Reduced chi-squared =          1.301 for     55 degrees of freedom 
# Null hypothesis probability =   6.627713e-02
 
Photon flux (15-150 keV)    in 2.428 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]    : 26.9049  (-6.49921  9.39584)
R^2/D10^2   : 9.46381E-03  (-0.00537353   0.0123115)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          93.63 using 59 PHA bins.
# Reduced chi-squared =          1.643 for     57 degrees of freedom 
# Null hypothesis probability =   1.601497e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.775e-09   9.235e-10
25- 50  1.632e-08   4.895e-09
50-150  8.638e-08   2.611e-08
15-150  1.055e-07   2.876e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 2.18310       (-0.321883     0.321856)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          79.05 using 59 PHA bins.
# Reduced chi-squared =          1.387 for     57 degrees of freedom 
# Null hypothesis probability =   2.824518e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.320e-08   7.535e-09
25- 50  2.539e-08   1.423e-08
50-150  5.568e-08   3.169e-08
15-150  9.427e-08   5.263e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.78316        (-1.71432      2.04836)
R1^2/D10^2  : 1.21624        (-0.849725      4.22357)
kT2 [keV]   : 45.5266        (-14.1719      41.1103)
R2^2/D10^2  : 2.00310E-03    (-0.0015074   0.00345296)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.18 using 59 PHA bins.
# Reduced chi-squared =          1.167 for     55 degrees of freedom 
# Null hypothesis probability =   1.856630e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.361e-08   7.569e-09
25- 50  1.978e-08   8.704e-09
50-150  9.363e-08   5.105e-08
15-150  1.270e-07   6.094e-08

Peak spectrum fit

Power-law model

Time interval is from   -0.010 sec. to    0.990 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.13513     ( -0.424513   0.41311 )
Norm@50keV  : 5.72711E-03    ( -0.00104506   0.00104505 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.43 using 59 PHA bins.
# Reduced chi-squared =          1.218 for     57 degrees of freedom 
# Null hypothesis probability =   1.250103e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.666710 ( -0.125501  0.125566 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.92286e-08 ( -1.30089e-08  1.31414e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.010 sec. to    0.990 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.13648     ( -0.484447   0.372066 )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 5.75374E-03    ( -0.00104884   -0.00575375 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.46 using 59 PHA bins.
# Reduced chi-squared =          1.240 for     56 degrees of freedom 
# Null hypothesis probability =   1.066709e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.665869 ( -0.122765  0.125755 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.83397e-08 ( -1.20318e-08  1.26341e-08 ) ergs/cm2

Band function

Time interval is from   -0.010 sec. to    0.990 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.963642   ( 0.963404   0.963404 )
beta        : -1.13552    ( -0.413378   0.425552 )
Epeak [keV] : 40.5557      ( -40.3418 -40.3418 )
Norm@50keV   : 9.60131E-03    ( -0.00490922   4880.93 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.43 using 59 PHA bins.
# Reduced chi-squared =          1.262 for     55 degrees of freedom 
# Null hypothesis probability =   9.119656e-02
 
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]    : 30.8087  (-8.59934  15.0898)
R^2/D10^2   : 8.19806E-03  (-0.00529585   0.0128698)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.57 using 59 PHA bins.
# Reduced chi-squared =          1.449 for     57 degrees of freedom 
# Null hypothesis probability =   1.502919e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.197e-09   5.523e-10
25- 50  7.466e-09   3.078e-09
50-150  4.952e-08   2.391e-08
15-150  5.819e-08   2.518e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 2.70119       (-0.509529     0.509505)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.58 using 59 PHA bins.
# Reduced chi-squared =          1.308 for     57 degrees of freedom 
# Null hypothesis probability =   5.895299e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.726e-09   3.878e-09
25- 50  1.294e-08   7.535e-09
50-150  2.838e-08   1.624e-08
15-150  4.804e-08   2.737e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.36185        (-1.22032      1.61584)
R1^2/D10^2  : 5.60247        (-4.26483      18.3293)
kT2 [keV]   : 44.8472        (-14.6213      43.5032)
R2^2/D10^2  : 2.80674E-03    (-0.0021423   0.00509217)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.27 using 59 PHA bins.
# Reduced chi-squared =          1.060 for     55 degrees of freedom 
# Null hypothesis probability =   3.558884e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.303e-09   4.520e-09
25- 50  8.219e-09   3.585e-09
50-150  5.154e-08   2.976e-08
15-150  6.807e-08   3.387e-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: 1.15548     ( -0.303173   0.294583 )
Norm@50keV  : 4.57827E-03    ( -0.000655353   0.000655296 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.54 using 59 PHA bins.
# Reduced chi-squared =          1.255 for     57 degrees of freedom 
# Null hypothesis probability =   9.309568e-02
 
Photon flux (15-150 keV)    in 2.428 sec: 0.534259 ( -0.078981  0.0791911 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14252e-07 ( -1.89556e-08  1.91539e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.15266     ( -0.280109   0.27138 )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 4.60080E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.58 using 59 PHA bins.
# Reduced chi-squared =          1.278 for     56 degrees of freedom 
# Null hypothesis probability =   7.841981e-02
 
Photon flux (15-150 keV)    in 2.428 sec: 0.536810 ( -0.080427  0.077131 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.13901e-07 ( -1.86157e-08  1.81051e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.976785   ( 0.976769   0.976769 )
beta        : -1.15536    ( 1.15527   0.303535 )
Epeak [keV] : 39.1716      ( -39.2407 -39.2407 )
Norm@50keV   : 7.80861E-03    ( -0.00387996   0.287213 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.54 using 59 PHA bins.
# Reduced chi-squared =          1.301 for     55 degrees of freedom 
# Null hypothesis probability =   6.627713e-02
 
Photon flux (15-150 keV)    in 2.428 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)  = 2.34e-08
S(50-100 keV) = 4.19e-08

T90 vs. Hardness ratio plot

T90                                   = 2.29200002551079 sec.
Hardness ratio (energy fluence ratio) = 1.7906

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.17781
Count Ratio (50-100 keV) / (15-25 keV) = 1.11368

Mask shadow pattern

IMX = 3.600613765182163E-01, IMY = 4.289605819807337E-02

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:
-60.208000 0.060000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
202.9037   4.1539    2.2  31.8   98.5   0.7214   5.4 ------	UNKNOWN                       
190.3362   3.1068    3.1  25.7  121.7   0.3514   3.7 ------	UNKNOWN                       
195.2254  69.3617    2.6  43.8  -24.3   0.5343   4.5 ------	UNKNOWN

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

Time interval of the image:
0.060000 2.488000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
188.5009  -2.2632    1.7  30.2  129.3   0.1529   6.7 ------	UNKNOWN                       
177.5236  14.9492    2.4  11.8  156.4   0.0709   4.8 ------	UNKNOWN                       
191.1913  44.1063    0.9  19.9   -6.8   0.1831  12.5 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
59.092590 302.854300
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4016  35.2054    4.4  48.2   44.2   1.9920   2.6    8.7	Her X-1                       
259.6061  38.8655    3.5  50.0   37.2   2.8021   3.3 ------	UNKNOWN                       
235.9076  29.0313    3.2  38.4   64.1   1.7807   3.6 ------	UNKNOWN                       
172.9111  -5.1982    2.7  52.0  169.7   2.5207   4.3 ------	UNKNOWN                       
172.5813   7.1828    2.8  40.4  175.6   1.0848   4.2 ------	UNKNOWN                       
294.5325  63.2048    2.6  56.8   -2.1   3.5027   4.5 ------	UNKNOWN                       
160.1390   8.8264    2.1  44.4 -166.9   1.6657   5.6 ------	UNKNOWN                       
  7.7829  81.4179    3.4  54.4  -33.1   3.1465   3.4 ------	UNKNOWN

Plot creation:
Sun May 31 03:48:29 EDT 2015