batgrbproduct analysis for trigger=741528

batgrbproduct Analysis for Trigger=741528

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Mar  8 14:38:18 EST 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger741528/GCN5_download_cron
======================================================================

  Trigger: 00741528      Segment: 000

  BAT Trigger Time: 510611080   [s; MET]
      Trigger Stop: 510611152   [s; MET]
               UTC: 2017-03-07T20:24:21.280840    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 13.5352800445089   Dec: 9.53652894499694  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.12
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.12

  Flight Position:   [ source = BAT ]
    RA: 13.5352800445089   Dec: 9.53652894499694  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 13.5104221945586   Dec: 9.53829953354605  [deg; J2000]  
        { 00h 54m 02.5s , +09d 32' 17.9" }
         +/- 2.50229426208396 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.41129293694587 [arcmin] (formal 1-sigma fit error)
    SNR: 8.20471597100569
 
  Angular difference between Flight and Ground position is 1.474687 arcmin
 
  Partial Coding Fraction: 0.4335938    [ including projection effects ]

  Duration
     T90: 56.9239999651909 +/- 27.3968012429363
        Measured from: 56.3120000958443
                   to: 113.236000061035     [s; relative to TRIGTIME]
     T50: 13.2079999446869 +/- 6.19982481221156
        Measured from: 65.2280001044273
                   to: 78.4360000491142     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 69.7239999771118     
                   to: 70.7239999771118     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 55.3320000171661     
                   to: 124.688000023365     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.837422   0.798714   0.488785   0.212203
           0.084946   0.092397   0.088495   0.095076 [error]
 Peak      0.052760   0.072096   0.034347  -0.012961
           0.010921   0.012349   0.011454   0.011526 [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 2.57e-07 3.75e-07 4.06e-07 8.23e-07 1.29e-06 1.86e-06   erg/cm2
              Error 4.35e-08 4.49e-08 8.67e-08 3.51e-07 1.98e-07 4.44e-07   erg/cm2
Peak flux Power-law 5.91e-01 4.84e-01 2.69e-01 2.20e-01 1.44e+00 1.56e+00   ph/cm2/s
              Error 1.68e-01 1.01e-01 9.09e-02 1.41e-01 3.00e-01 3.38e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.55e-07 3.81e-07 4.03e-07 6.12e-07 1.27e-06 1.65e-06   erg/cm2
              Error 4.58e-08 5.63e-08 9.45e-08 6.01e-07 2.31e-07 6.23e-07   erg/cm2
Peak flux Cutoff-PL 5.46e-01 5.61e-01 2.47e-01 4.28e-02 1.39e+00 1.40e+00   ph/cm2/s
              Error 1.83e-01 1.51e-01 1.34e-01 1.18e-01 3.04e-01 3.39e-01   ph/cm2/s
 
Fluence        Band 3.90e-07 7.75e-07 8.46e-07 1.40e-06 2.49e-06 3.45e-06   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 5.52e-01 5.47e-01 2.60e-01 6.25e-02 1.41e+00 1.42e+00   ph/cm2/s
              Error 1.83e-01 -------- -------- -------- 3.07e-01 3.34e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.883    0.232    -      -           2.02e-03 3.11e-04   41.840 57
CPL   1.744    0.769      74.9    0.0      2.45e-03 0.00e+00   41.760 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.849    0.372    -      -           1.03e-02 2.67e-03   54.320 57
CPL   0.617    2.414      43.8    0.0      5.71e-02 0.00e+00   52.600 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: 41.344000 sec.
T50 in the 50-300 keV band: 18.944000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   69.356   55.332  124.688
T90    56.924   56.312  113.236
T50    13.208   65.228   78.436
Peak    1.000   69.724   70.724

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   13.5104  +9.5383 0.0234   33.3  -55.7       2.1235     8.2  TRIG_00741528       
------------------------------------------
 
Foreground time interval of the image:
 55.332 124.688 (delta_t =  69.356 [sec])
Background time interval of the image:
-60.000  55.332 (delta_t = 115.332 [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   55.332 sec. to  124.688 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.88318     ( -0.225601   0.238973 )
Norm@50keV  : 2.02492E-03    ( -0.00031524   0.000306487 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.84 using 59 PHA bins.
# Reduced chi-squared =         0.7340 for     57 degrees of freedom 
# Null hypothesis probability =   9.339544e-01
 
Photon flux (15-150 keV)    in 69.36 sec: 0.288544 ( -0.0341963  0.0341964 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.29112e-06 ( -1.94308e-07  2.00869e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   55.332 sec. to  124.688 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.74351     ( -1.00722   0.530645 )
Epeak [keV] : 74.9069      (   )
Norm@50keV  : 2.44799E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.76 using 59 PHA bins.
# Reduced chi-squared =         0.7457 for     56 degrees of freedom 
# Null hypothesis probability =   9.215870e-01
 
Photon flux (15-150 keV)    in 69.36 sec: 0.286754 ( -0.035735  0.017804 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.26685e-06 ( -2.40471e-07  2.21106e-07 ) ergs/cm2
 
Band function
Time interval is from   55.332 sec. to  124.688 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 3.86814   ( -3.86817   -3.86817 )
beta        : -1.98277    ( -0.359735   0.271779 )
Epeak [keV] : 21.7705      ( -21.734 45.1203 )
Norm@50keV   : 92.3801    ( -93.4147   201.4 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.74 using 59 PHA bins.
# Reduced chi-squared =         0.7407 for     55 degrees of freedom 
# Null hypothesis probability =   9.241991e-01
 
Photon flux (15-150 keV)    in 69.36 sec: 0.527366 ( 6.47263  -0.057954 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.48656e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.56105  (-1.36687  1.6324)
R^2/D10^2   : 0.157134  (-0.0703294   0.125277)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.48 using 59 PHA bins.
# Reduced chi-squared =          1.008 for     57 degrees of freedom 
# Null hypothesis probability =   4.574471e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.995e-07   4.432e-08
25- 50  4.649e-07   7.734e-08
50-150  2.127e-07   7.335e-08
15-150  8.771e-07   1.597e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 78.6154       (-27.7945      58.5216)
Norm        : 1.35848       (-0.223135     0.293997)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.35 using 59 PHA bins.
# Reduced chi-squared =         0.7430 for     57 degrees of freedom 
# Null hypothesis probability =   9.260991e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.442e-07   4.165e-08
25- 50  4.003e-07   6.014e-08
50-150  5.585e-07   2.936e-07
15-150  1.203e-06   3.267e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.27565        (-2.0116      1.96835)
R1^2/D10^2  : 0.598549        (-0.335389      1.50816)
kT2 [keV]   : 25.5160        (-11.8083      50.3355)
R2^2/D10^2  : 2.77070E-03    (-0.00222998   0.0184873)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.49 using 59 PHA bins.
# Reduced chi-squared =         0.7543 for     55 degrees of freedom 
# Null hypothesis probability =   9.110560e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.526e-07   1.335e-07
25- 50  3.770e-07   1.892e-07
50-150  6.209e-07   3.673e-07
15-150  1.250e-06   6.433e-07

Peak spectrum fit

Power-law model
Time interval is from   69.724 sec. to   70.724 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84918     ( -0.354603   0.390195 )
Norm@50keV  : 1.02593E-02    ( -0.00271156   0.00262453 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.32 using 59 PHA bins.
# Reduced chi-squared =         0.9530 for     57 degrees of freedom 
# Null hypothesis probability =   5.761802e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.44157 ( -0.299502  0.299552 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.43386e-08 ( -2.40811e-08  2.53689e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   69.724 sec. to   70.724 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.617086     ( -3.29011   1.5379 )
Epeak [keV] : 43.7695      (   )
Norm@50keV  : 5.70688E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.60 using 59 PHA bins.
# Reduced chi-squared =         0.9393 for     56 degrees of freedom 
# Null hypothesis probability =   6.042763e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.38990 ( -0.30202  0.30528 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.1851e-08 ( -2.52445e-08  2.9709e-08 ) ergs/cm2
 
Band function
Time interval is from   69.724 sec. to   70.724 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.72597   ( -6.32244   -4.72597 )
beta        : -2.45182    ( -1.21024   0.6325 )
Epeak [keV] : 29.0121      ( -10.5538 6.43689 )
Norm@50keV   : 422.598    ( -85.5467   10558.2 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.05 using 59 PHA bins.
# Reduced chi-squared =         0.9283 for     55 degrees of freedom 
# Null hypothesis probability =   6.261154e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.40711 ( 5.59289  -0.32267 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.46446e-08 ( -8.46376e-08  -2.46612e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.41623  (-1.92523  2.62192)
R^2/D10^2   : 0.881959  (-0.534432   1.2101)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.44 using 59 PHA bins.
# Reduced chi-squared =         0.9550 for     57 degrees of freedom 
# Null hypothesis probability =   5.718416e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.556e-08   6.571e-09
25- 50  3.544e-08   1.172e-08
50-150  1.550e-08   9.223e-09
15-150  6.649e-08   2.389e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 77.0545       (-36.5917      -77.0563)
Norm        : 6.93838       (-1.94706     2.60977)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.00 using 59 PHA bins.
# Reduced chi-squared =         0.9298 for     57 degrees of freedom 
# Null hypothesis probability =   6.259296e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.796e-08   5.580e-09
25- 50  2.929e-08   1.288e-08
50-150  4.030e-08   3.255e-08
15-150  8.755e-08   4.154e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.11204        (-2.92203      2.25087)
R1^2/D10^2  : 1.94253        (-1.42892      6.25681)
kT2 [keV]   : 23.1992        (-12.534      -23.7027)
R2^2/D10^2  : 1.57467E-02    (-0.0151374   0.45968)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.05 using 59 PHA bins.
# Reduced chi-squared =         0.9282 for     55 degrees of freedom 
# Null hypothesis probability =   6.262736e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.757e-08   1.050e-08
25- 50  3.099e-08   1.803e-08
50-150  3.748e-08   2.356e-08
15-150  8.605e-08   4.486e-08
Plot creation:
Wed Mar  8 14:59:17 EST 2017