Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time: Mon Oct 13 20:16:24 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger614094
======================================================================

  Trigger: 00614094      Segment: 000

  BAT Trigger Time: 433798914.624   [s; MET]
      Trigger Stop: 433798915.136   [s; MET]
               UTC: 2014-09-30T19:41:42.028940    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 6.35470319330654   Dec: 24.2750518154783  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.73
     Image Trigger?:     NO
     Rate S/N Ratio:     73.1300211951289  [ if not an image trigger ]
     Image S/N Ratio:    9.73

  Analysis Position:   [ source = BAT ]
    RA: 6.35470319330654   Dec: 24.2750518154783  [deg; J2000]

  Refined Position:   [ source = BAT pre-slew burst ]
    RA: 6.35976752637885   Dec: 24.2981699171334  [deg; J2000]  
        { 00h 25m 26.3s , +24d 17' 53.4" }
         +/- 1.5512376793054 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.691484656304698 [arcmin] (formal 1-sigma fit error)
    SNR: 16.2450384675578
 
  Angular difference between the analysis and refined position is 1.414468 arcmin
 
  Partial Coding Fraction: 0.2480469    [ including projection effects ]

  Duration
     T90: 0.843999922275543 +/- 0.119883279373289
        Measured from: -0.0640000104904175
                   to: 0.779999911785126     [s; relative to TRIGTIME]
     T50: 0.383999943733215 +/- 0.098792724251903
        Measured from: 0.0479999780654907
                   to: 0.431999921798706     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.118000030517578     
                   to: 0.881999969482422     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0960000157356262     
                   to: 0.860000014305115     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.067521   0.152290   0.210769   0.134299
           0.013691   0.016552   0.017920   0.016559 [error]
 Peak      0.066613   0.158301   0.212137   0.137141
           0.013921   0.016735   0.018080   0.016697 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
 
====== Table of the duration information =============================
 
        Value   tstart    tstop
T100    0.956   -0.096    0.860
T90     0.844   -0.064    0.780
T50     0.384    0.048    0.432
Peak    1.000   -0.118    0.882
 
 
====== Spectral Analysis Summary =====================================
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^{Ph_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 both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedo
 
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: N/A)
 
Model Ph_index Ph_90err_low Ph_90err_hi  Epeak  Epeak_90err_low  Epeak_90err_hi  Norm       Nomr_90err_low    Norm_90err_hi    chi2    dof
PL      -0.639    -0.184      0.194       -           -               -         3.53e-02     -3.88e-03          3.79e-03      65.850   57
CPL     -0.547    -0.272      0.389      996.861    -996.861      -996.861      3.85e-02     -6.43e-03          1.23e-02      66.380   56
 
 
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: N/A)
 
Model Ph_index Ph_90err_low Ph_90err_hi  Epeak  Epeak_90err_low  Epeak_90err_hi  Norm       Nomr_90err_low    Norm_90err_hi    chi2    dof
PL      -0.647     -0.183     0.192       -           -               -         3.44e-02     -3.74e-03          3.66e-03      66.900   57
CPL     -0.648     -0.174     0.340     9999.360    -9999.360      -9999.360      3.47e-02     -3.77e-03          1.51e-02      66.950   56
 
 
=== 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         PL   1.94e-08  6.07e-08  1.56e-07  1.15e-06  4.24e-07  1.39e-06   erg/cm2
      90%_error_low -4.48e-09 -8.71e-09 -1.57e-08 -2.62e-07 -4.43e-08 -2.69e-07   erg/cm2
      90%_error_hi   4.89e-09  8.52e-09  1.56e-08  3.19e-07  4.44e-08  3.21e-07   erg/cm2
Peak flux       PL   3.73e-04  4.31e-03  5.43e-02  4.56e+00  2.24e-01  4.59e+00   ph/cm2/s
      90%_error_low -3.45e-05 -1.15e-04 -6.80e-03 -4.36e-01 -8.60e-03 -4.14e-01   ph/cm2/s
      90%_error_hi   6.57e-04  6.98e-03  5.78e-02  3.23e+00  2.53e-01  3.33e+00   ph/cm2/s
 
Fluence        CPL   1.94e-08  6.07e-08  1.56e-07  1.16e-06  4.24e-07  1.37e-06   erg/cm2
      90%_error_low    N/A       N/A       N/A    -4.88e-07 -4.43e-08 -4.33e-07   erg/cm2
      90%_error_hi     N/A       N/A       N/A     3.18e-07  4.44e-08  1.27e-07   erg/cm2
Peak flux      CPL   6.28e-01  1.06e+00  1.35e+00  3.43e+00  3.99e+00  6.48e+00   ph/cm2/s
      90%_error_low     N/A       N/A       N/A       N/A   -4.01e-01 -1.18e+00   ph/cm2/s
      90%_error_hi      N/A       N/A       N/A       N/A    4.01e-01  8.09e-01   ph/cm2/s
 
======================================================================
  • 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
    6.3598    24.2982   0.0118    32.8514    79.6592         0.5569137     16.245 TRIG_00614094                 
 
Foreground time interval of the image:
 -0.096   0.860 (delta_t =   0.956 [sec])
Background time interval of the image:
-51.923  -0.096 (delta_t =  51.827 [sec])




    Light Curves

    Note: The mask-weighted lightcurves have units of either count/det or counts/sec/det, where a det is 0.4 x 0.4 = 0.16 sq cm.

    Full-time range; 1 s binning

    Bokeh Plot

    Other quick-look light curves:




    Spectra

    Notes:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Time interval is from   -0.096 sec. to    0.860 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.639381     ( -0.184266   0.194205 )
Norm@50keV  : 3.53475E-02    ( -0.0038807   0.0037893 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.85 using 59 PHA bins.
# Reduced chi-squared =          1.155 for     57 degrees of freedom 
# Null hypothesis probability =   1.973473e-01
 
Photon flux (15-150 keV)    in 0.956 sec: 0.244994 ( -0.02376  0.263368 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.24178e-07 ( -4.43056e-08  4.43847e-08 ) ergs/cm2
    Cutoff power-law model
    Time interval is from   -0.096 sec. to    0.860 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.63059     ( -0.272421   0.389385 )
Epeak [keV] : 9999.28      ( -9999.32 -9999.32 )
Norm@50keV  : 3.56290E-02    ( -0.00357476   0.015106 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.89 using 59 PHA bins.
# Reduced chi-squared =          1.177 for     56 degrees of freedom 
# Null hypothesis probability =   1.717859e-01
 
Photon flux (15-150 keV)    in 0.956 sec: 4.13246 ( -0.43943  0.3901 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.24051e-07 ( -4.42921e-08  4.4404e-08 ) ergs/cm2

    1-s peak spectrum fit

    Power-law model
    Time interval is from   -0.118 sec. to    0.882 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.646562     ( -0.182602   0.192285 )
Norm@50keV  : 3.43916E-02    ( -0.00374357   0.00365814 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.90 using 59 PHA bins.
# Reduced chi-squared =          1.174 for     57 degrees of freedom 
# Null hypothesis probability =   1.735618e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.223771 0.240510 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.30259e-07 ( -4.46564e-08  4.47371e-08 ) ergs/cm2
    Cutoff power-law model
    Time interval is from   -0.118 sec. to    0.882 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.648079     ( -0.175872   0.338543 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 3.46794E-02    ( -0.00382791   0.0150048 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.95 using 59 PHA bins.
# Reduced chi-squared =          1.196 for     56 degrees of freedom 
# Null hypothesis probability =   1.499935e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.99346 ( -0.4007  0.4013 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.3013e-07 ( -4.46428e-08  4.47567e-08 ) ergs/cm2

    Time-resolved spectra




    Distribution

    T90 vs. Hardness ratio plot 

    T90                                   = N/A sec.
Hardness ratio (energy fluence ratio) = N/A

    S(15-50 keV) vs. S(50-150 keV) plot 

    S(15-50 keV)  = N/A
S(50-150 keV) = N/A

    The dash-dotted line and the dashed line traces the fluences calculated from the Band function with Epeak = 15 and 150 keV, respectively. Both lines assume a canonical values of alpha = -1 and beta = -2.5.




    Mask shadow pattern 

    IMX = 1.159099617728122E-01, IMY = -6.352373500335559E-01

    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:
-51.923400 -0.096000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.5856  35.1762    6.0  36.1 -162.7   0.1877   1.9    1.5	Cyg X-1                       
308.0628  41.0337    2.6  27.2 -162.5   0.3567   4.5    5.3	Cyg X-3                       
326.1978  38.1520    4.4  19.4  166.7   0.1956   2.6   10.3	Cyg X-2                       
 49.5099  39.3701    2.6  45.3   18.2   0.7007   4.4 ------	UNKNOWN                       
 25.1107  60.8612    3.1  23.2   -8.4   0.2852   3.7 ------	UNKNOWN                       
350.4196  59.7250    2.2   7.7  -39.4   0.3611   5.2 ------	UNKNOWN                       
282.2406  17.6888    2.4  59.4 -163.1   2.3852   4.8 ------	UNKNOWN                       
 67.9590  76.8900    2.6  37.7  -40.2   0.4831   4.5 ------	UNKNOWN                       
103.9517  65.3455    2.8  53.2  -34.8   1.2651   4.2 ------	UNKNOWN

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

    Time interval of the image:
-0.096000 0.860000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.5005  35.3363   16.4  36.0 -162.4  -0.0127  -0.7    9.2	Cyg X-1                       
308.2167  40.8282    7.5  27.2 -163.0  -0.0232  -1.6    8.9	Cyg X-3                       
326.1779  38.3223  452.4  19.2  167.0   0.0004   0.0    0.3	Cyg X-2                       
  6.3598  24.2982    0.7  32.9   79.7   0.5571  16.3 ------	UNKNOWN                       
322.3141  28.2078    2.4  29.6  160.8   0.0810   4.8 ------	UNKNOWN                       
 65.3955  52.0428    2.0  46.6   -5.2   0.1447   5.8 ------	UNKNOWN

    Post-slew image of 15-350 keV band 

    Time interval of the image:
20.276610 126.676590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.7149  35.1266    7.5  36.5 -161.7   0.2057   1.5    7.6	Cyg X-1                       
308.1157  40.9941    2.8  27.6 -161.2   0.4789   4.1    2.5	Cyg X-3                       
326.1961  38.1982   11.5  19.5  169.0   0.1110   1.0    7.5	Cyg X-2                       
 59.2341  50.3799    2.2  44.0   -0.0   1.0694   5.1 ------	UNKNOWN                       
 73.2979  44.7714    3.0  54.9   -1.7   1.5650   3.9 ------	UNKNOWN