batgrbproduct analysis for trigger=741220

batgrbproduct Analysis for Trigger=741220

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Mar  6 17:51:32 EST 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger741220_copy/GCN5_download_cron
======================================================================

  Trigger: 00741220      Segment: 000

  BAT Trigger Time: 510476791.232   [s; MET]
      Trigger Stop: 510476799.424   [s; MET]
               UTC: 2017-03-06T07:06:12.520600    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 263.081790843115   Dec: -44.747485901374  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.15
     Image Trigger?:     NO
     Rate S/N Ratio:     7.41619848709566  [ if not an image trigger ]
     Image S/N Ratio:    7.15

  Flight Position:   [ source = BAT ]
    RA: 263.081790843115   Dec: -44.747485901374  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 263.135417524543   Dec: -44.7635363388596  [deg; J2000]  
        { 17h 32m 32.5s , -44d 45' 48.7" }
         +/- 3.7762446617465 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.70728429001974 [arcmin] (formal 1-sigma fit error)
    SNR: 4.55771089768068
 
  Angular difference between Flight and Ground position is 2.479531 arcmin
 
  Partial Coding Fraction: 0.2929688    [ including projection effects ]

  Duration
     T90: 114.035999953747 +/- 9.35462494677846
        Measured from: -96.5959998965263
                   to: 17.4400000572205     [s; relative to TRIGTIME]
     T50: 95.2559999227524 +/- 86.5307103587395
        Measured from: -86.459999859333
                   to: 8.79600006341934     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.24800002574921     
                   to: 2.24800002574921     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -100.579999983311     
                   to: 19.283999979496     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.550069   0.715974   0.455796   0.134247
           0.155729   0.147435   0.122669   0.100443 [error]
 Peak      0.050532   0.038507   0.023097   0.010639
           0.014112   0.014345   0.011173   0.009527 [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 2.48e-07 3.37e-07 3.38e-07 6.12e-07 1.12e-06 1.54e-06   erg/cm2
              Error 8.27e-08 7.52e-08 1.20e-07 4.47e-07 2.82e-07 5.70e-07   erg/cm2
Peak flux Power-law 4.82e-01 3.38e-01 1.56e-01 1.00e-01 1.02e+00 1.08e+00   ph/cm2/s
              Error 2.43e-01 1.24e-01 8.72e-02 1.19e-01 3.82e-01 3.96e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.36e-07 3.53e-07 3.42e-07 3.39e-07 1.09e-06 1.27e-06   erg/cm2
              Error 9.34e-08 9.37e-08 1.31e-07 3.79e-07 2.99e-07 6.53e-07   erg/cm2
Peak flux Cutoff-PL 4.18e-01 3.90e-01 1.65e-01 3.15e-02 9.98e-01 1.00e+00   ph/cm2/s
              Error 2.73e-01 1.67e-01 1.37e-01 1.06e-01 3.83e-01 3.95e-01   ph/cm2/s
 
Fluence        Band 2.31e-07 3.54e-07 3.43e-07 3.05e-07 1.09e-06 1.24e-06   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 4.36e-01 3.73e-01 1.69e-01 5.23e-02 1.01e+00 1.03e+00   ph/cm2/s
              Error -------- -------- -------- -------- 3.89e-01 4.04e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.997    0.421    -      -           1.01e-03 2.67e-04   57.130 57
CPL   1.605    1.226      46.5    0.0      1.65e-03 0.00e+00   56.920 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.116    0.665    -      -           6.46e-03 2.89e-03   81.600 57
CPL   0.902    3.059      40.5    0.0      3.05e-02 0.00e+00   80.820 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  119.864 -100.580   19.284
T90   114.036  -96.596   17.440
T50    95.256  -86.460    8.796
Peak    1.000    1.248    2.248

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  263.1354 -44.7635 0.0420   45.8   13.7       1.9096     4.6  TRIG_00741220       
------------------------------------------
 
Foreground time interval of the image:
-100.580  19.284 (delta_t = 119.864 [sec])
Background time interval of the image:
-179.031 -100.580 (delta_t =  78.451 [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
Time interval is from -100.580 sec. to   19.284 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.99685     ( -0.398179   0.444133 )
Norm@50keV  : 1.01369E-03    ( -0.00027392   0.000261037 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.13 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     57 degrees of freedom 
# Null hypothesis probability =   4.704121e-01
 
Photon flux (15-150 keV)    in 119.9 sec: 0.151834 ( -0.0346498  0.0348075 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.12065e-06 ( -2.78661e-07  2.85041e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from -100.580 sec. to   19.284 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.60467     ( -1.89894   0.553171 )
Epeak [keV] : 46.5096      (   )
Norm@50keV  : 1.65212E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.92 using 59 PHA bins.
# Reduced chi-squared =          1.016 for     56 degrees of freedom 
# Null hypothesis probability =   4.407900e-01
 
Photon flux (15-150 keV)    in 119.9 sec: 0.149450 ( -0.035771  0.035748 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.09236e-06 ( -2.94768e-07  3.02357e-07 ) ergs/cm2
 
Band function
Time interval is from -100.580 sec. to   19.284 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.60387   ( -0.339721   1.90875 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 46.4790      ( -29.1911 -46.479 )
Norm@50keV   : 1.65369E-03    ( -0.000857423   0.0163399 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.92 using 59 PHA bins.
# Reduced chi-squared =          1.035 for     55 degrees of freedom 
# Null hypothesis probability =   4.036323e-01
 
Photon flux (15-150 keV)    in 119.9 sec: 0.149782 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.08514e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.0125  (-3.0605  4.14506)
R^2/D10^2   : 4.78414E-02  (-0.033418   0.119076)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.68 using 59 PHA bins.
# Reduced chi-squared =          1.100 for     57 degrees of freedom 
# Null hypothesis probability =   2.819388e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.454e-07   7.208e-08
25- 50  4.117e-07   2.211e-07
50-150  2.823e-07   1.580e-07
15-150  8.394e-07   4.133e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 74.2053       (-35.5234      114.71)
Norm        : 0.725727       (-0.22345     0.33982)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.02 using 59 PHA bins.
# Reduced chi-squared =          1.000 for     57 degrees of freedom 
# Null hypothesis probability =   4.744323e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.245e-07   7.877e-08
25- 50  3.627e-07   1.614e-07
50-150  4.861e-07   3.446e-07
15-150  1.073e-06   4.343e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.53216        (-3.34291      3.82791)
R1^2/D10^2  : 0.472448        (-0.402551      48.0661)
kT2 [keV]   : 19.8287        (-7.93096      31.833)
R2^2/D10^2  : 3.81148E-03    (-0.00368681   0.0279529)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.64 using 59 PHA bins.
# Reduced chi-squared =          1.030 for     55 degrees of freedom 
# Null hypothesis probability =   4.134827e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.378e-07   1.430e-07
25- 50  3.409e-07   1.844e-07
50-150  5.120e-07   3.223e-07
15-150  1.091e-06   5.541e-07

Peak spectrum fit

Power-law model
Time interval is from    1.248 sec. to    2.248 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.11643     ( -0.594222   0.735673 )
Norm@50keV  : 6.45762E-03    ( -0.00297198   0.00280157 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.60 using 59 PHA bins.
# Reduced chi-squared =          1.432 for     57 degrees of freedom 
# Null hypothesis probability =   1.797043e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.02423 ( -0.381056  0.382381 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.0101e-08 ( -2.4139e-08  2.50327e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.248 sec. to    2.248 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.902063     ( -4.88522   1.23323 )
Epeak [keV] : 40.4893      (   )
Norm@50keV  : 3.04812E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.82 using 59 PHA bins.
# Reduced chi-squared =          1.443 for     56 degrees of freedom 
# Null hypothesis probability =   1.664882e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.998265 ( -0.381382  0.384475 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.73636e-08 ( -2.3596e-08  2.54702e-08 ) ergs/cm2
 
Band function
Time interval is from    1.248 sec. to    2.248 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.878352   ( -1.56272   5.4073 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 40.5057      ( -27.6723 -40.5288 )
Norm@50keV   : 3.14546E-02    ( -0.031406   22.966 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.82 using 59 PHA bins.
# Reduced chi-squared =          1.469 for     55 degrees of freedom 
# Null hypothesis probability =   1.328017e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.01468 ( 5.98532  -0.404078 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.78282e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.4135  (-3.74539  5.56847)
R^2/D10^2   : 0.422695  (-0.421711   1.91431)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.07 using 59 PHA bins.
# Reduced chi-squared =          1.440 for     57 degrees of freedom 
# Null hypothesis probability =   1.650759e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.453e-09   6.105e-09
25- 50  2.486e-08   1.653e-08
50-150  1.457e-08   1.066e-08
15-150  4.889e-08   3.174e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 59.1954       (-34.4812      -59.1928)
Norm        : 5.50210       (-2.53313     4.85367)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.89 using 59 PHA bins.
# Reduced chi-squared =          1.419 for     57 degrees of freedom 
# Null hypothesis probability =   2.042074e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.380e-08   9.460e-09
25- 50  2.091e-08   1.325e-08
50-150  2.353e-08   1.957e-08
15-150  5.824e-08   3.915e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.69513        (-4.78424      175.809)
R1^2/D10^2  : 5.27313        (-4.90878      -4.90878)
kT2 [keV]   : 15.1082        (-15.505      -15.505)
R2^2/D10^2  : 7.46832E-02    (-0.0673301   1.29521)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.75 using 59 PHA bins.
# Reduced chi-squared =          1.468 for     55 degrees of freedom 
# Null hypothesis probability =   1.344643e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.347e-08   8.600e-09
25- 50  1.978e-08   1.131e-08
50-150  2.238e-08   1.710e-08
15-150  5.563e-08   3.045e-08
Plot creation:
Mon Mar  6 18:14:22 EST 2017