batgrbproduct analysis for trigger=804692

batgrbproduct Analysis for Trigger=804692

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Jan 12 19:21:37 EST 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger804692/GCN5_download_cron
======================================================================

  Trigger: 00804692      Segment: 000

  BAT Trigger Time: 537381746.688   [s; MET]
      Trigger Stop: 537381746.944   [s; MET]
               UTC: 2018-01-11T16:42:06.387380    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 149.84082869691   Dec: 48.2647072728262  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.93
     Image Trigger?:     NO
     Rate S/N Ratio:     76.3020314277412  [ if not an image trigger ]
     Image S/N Ratio:    10.93

  Flight Position:   [ source = BAT ]
    RA: 149.84082869691   Dec: 48.2647072728262  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 149.781728230432   Dec: 48.2540677028056  [deg; J2000]  
        { 09h 59m 07.6s , +48d 15' 14.6" }
         +/- 0.667890789010868 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.221153450857429 [arcmin] (formal 1-sigma fit error)
    SNR: 54.1426065493329
 
  Angular difference between Flight and Ground position is 2.445589 arcmin
 
  Partial Coding Fraction: 0.703125    [ including projection effects ]

  Duration
     T90: 50.7599999904633 +/- 1.86752460523582
        Measured from: 1.78800010681152
                   to: 52.5480000972748     [s; relative to TRIGTIME]
     T50: 22.2359999418259 +/- 0.372945075319846
        Measured from: 10.4080001115799
                   to: 32.6440000534058     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 13.8880000114441     
                   to: 14.8880000114441     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.296000003814697     
                   to: 68.5920000076294     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.452526   5.311096   4.640653   1.517804
           0.057160   0.063059   0.059003   0.048824 [error]
 Peak      0.117337   0.200977   0.222012   0.089669
           0.008909   0.010708   0.010785   0.008654 [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 1.08e-06 2.26e-06 3.67e-06 1.35e-05 1.02e-05 2.05e-05   erg/cm2
              Error 4.28e-08 5.11e-08 6.88e-08 6.18e-07 1.76e-07 6.34e-07   erg/cm2
Peak flux Power-law 1.06e+00 1.46e+00 1.49e+00 2.77e+00 4.89e+00 6.78e+00   ph/cm2/s
              Error 1.19e-01 9.82e-02 8.61e-02 3.56e-01 2.65e-01 4.05e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.08e-06 2.26e-06 3.67e-06 1.34e-05 1.02e-05 2.02e-05   erg/cm2
              Error 4.50e-08 5.10e-08 6.91e-08 4.98e-07 1.75e-07 7.54e-07   erg/cm2
Peak flux Cutoff-PL 1.04e+00 1.45e+00 1.50e+00 2.81e+00 4.88e+00 6.80e+00   ph/cm2/s
              Error 1.40e-01 1.02e-01 9.89e-02 6.70e-01 2.68e-01 6.79e-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    1.297    0.033    -      -           1.49e-02 2.60e-04   36.910 57
CPL   1.294    0.034    9999.3    0.0      1.49e-02 6.80e-04   37.030 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.970    0.095    -      -           4.26e-02 2.27e-03   52.880 57
CPL   0.964    0.234    10000.0    0.0      4.28e-02 2.25e-03   52.870 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: 43.456000 sec.
T50 in the 50-300 keV band: 19.776000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   68.888   -0.296   68.592
T90    50.760    1.788   52.548
T50    22.236   10.408   32.644
Peak    1.000   13.888   14.888

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  149.7817 +48.2541 0.0035   28.1   28.4       3.5856    54.1  TRIG_00804692       
------------------------------------------
 
Foreground time interval of the image:
 -0.296   9.413 (delta_t =   9.709 [sec])
Background time interval of the image:
-239.688  -0.296 (delta_t = 239.392 [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   -0.296 sec. to   68.592 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29675     ( -0.0335141   0.0334133 )
Norm@50keV  : 1.48989E-02    ( -0.000260678   0.000260192 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          36.91 using 59 PHA bins.
# Reduced chi-squared =         0.6475 for     57 degrees of freedom 
# Null hypothesis probability =   9.821046e-01
 
Photon flux (15-150 keV)    in 68.89 sec: 1.77642 ( -0.0353493  0.0355233 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01507e-05 ( -1.75621e-07  1.75718e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.296 sec. to   68.592 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29382     ( -0.035016   0.032684 )
Epeak [keV] : 9999.28      ( -9999.36 -9999.36 )
Norm@50keV  : 1.49420E-02    ( -0.000259222   0.0010998 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.03 using 59 PHA bins.
# Reduced chi-squared =         0.6613 for     56 degrees of freedom 
# Null hypothesis probability =   9.762753e-01
 
Photon flux (15-150 keV)    in 68.89 sec: 1.77535 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.01513e-05 ( -1.75463e-07  1.74361e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.296 sec. to   68.592 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.571461   ( 0.805657   5.49215 )
beta        : -1.30729    ( -0.0444954   0.0377875 )
Epeak [keV] : 57.0346      ( -56.9193 163.123 )
Norm@50keV   : 4.61791E-02    ( -0.0466521   1.01021e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          35.84 using 59 PHA bins.
# Reduced chi-squared =         0.6517 for     55 degrees of freedom 
# Null hypothesis probability =   9.788286e-01
 
Photon flux (15-150 keV)    in 68.89 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]    : 20.5976  (  )
R^2/D10^2   : 6.91384E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         765.76 using 59 PHA bins.
# Reduced chi-squared =         13.434 for     57 degrees of freedom 
# Null hypothesis probability =  1.058495e-124
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.849e-07   1.454e-08
25- 50  1.954e-06   5.580e-08
50-150  6.169e-06   1.605e-07
15-150  8.509e-06   1.688e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 7.67226       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         283.92 using 59 PHA bins.
# Reduced chi-squared =         4.9810 for     57 degrees of freedom 
# Null hypothesis probability =   7.347701e-32
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.316e-06   2.583e-08
25- 50  2.532e-06   5.167e-08
50-150  5.553e-06   1.092e-07
15-150  9.401e-06   1.688e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.75554        (-0.567208      0.595632)
R1^2/D10^2  : 0.789239        (-0.151775      0.197978)
kT2 [keV]   : 37.1397        (-2.76663      3.45979)
R2^2/D10^2  : 8.44253E-03    (-0.0020424   0.00238928)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.42 using 59 PHA bins.
# Reduced chi-squared =         0.7532 for     55 degrees of freedom 
# Null hypothesis probability =   9.122128e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.086e-07   5.752e-08
25- 50  2.354e-06   7.922e-08
50-150  6.893e-06   2.917e-07
15-150  1.016e-05   3.100e-07

Peak spectrum fit

Power-law model
Time interval is from   13.888 sec. to   14.888 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.970117     ( -0.0959154   0.0947778 )
Norm@50keV  : 4.25647E-02    ( -0.00227486   0.00226801 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.88 using 59 PHA bins.
# Reduced chi-squared =         0.9276 for     57 degrees of freedom 
# Null hypothesis probability =   6.304734e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.89370 ( -0.264607  0.264962 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.65264e-07 ( -2.71563e-08  2.72454e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   13.888 sec. to   14.888 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.964069     ( -0.353462   0.113785 )
Epeak [keV] : 9999.99      ( -9999.99 -9999.99 )
Norm@50keV  : 4.28287E-02    ( -0.00225512   0.00224993 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.87 using 59 PHA bins.
# Reduced chi-squared =         0.9441 for     56 degrees of freedom 
# Null hypothesis probability =   5.940643e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.88140 ( -0.25642  0.279 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.6439e-07 ( -2.7702e-08  2.8325e-08 ) ergs/cm2
 
Band function
Time interval is from   13.888 sec. to   14.888 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.832978   ( 0.832978   0.832978 )
beta        : -0.970118    ( -0.0947428   0.096025 )
Epeak [keV] : 43.3753      ( -43.3753 -43.3753 )
Norm@50keV   : 6.67731E-02    ( -0.0264524   7450.6 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.88 using 59 PHA bins.
# Reduced chi-squared =         0.9614 for     55 degrees of freedom 
# Null hypothesis probability =   5.562082e-01
 
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]    : 22.6074  (  )
R^2/D10^2   : 0.161006  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         117.78 using 59 PHA bins.
# Reduced chi-squared =         2.0663 for     57 degrees of freedom 
# Null hypothesis probability =   4.019847e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.504e-08   1.630e-09
25- 50  8.079e-08   6.235e-09
50-150  3.085e-07   2.805e-08
15-150  4.044e-07   2.595e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 19.6673       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         153.62 using 59 PHA bins.
# Reduced chi-squared =         2.6951 for     57 degrees of freedom 
# Null hypothesis probability =   8.315655e-11
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.897e-08   2.825e-09
25- 50  9.421e-08   6.635e-09
50-150  2.066e-07   4.965e-08
15-150  3.498e-07   4.435e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.2651        (-2.56498      2.80825)
R1^2/D10^2  : 1.11334        (-0.506029      1.37146)
kT2 [keV]   : 45.7460        (-12.3099      45.7186)
R2^2/D10^2  : 1.62905E-02    (-0.0131029   0.0256991)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.67 using 59 PHA bins.
# Reduced chi-squared =          1.030 for     55 degrees of freedom 
# Null hypothesis probability =   4.125278e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.808e-08   5.970e-09
25- 50  9.032e-08   1.816e-08
50-150  3.494e-07   1.436e-07
15-150  4.678e-07   1.694e-07
Plot creation:
Fri Jan 12 19:27:31 EST 2018