batgrbproduct analysis for trigger=804999

batgrbproduct Analysis for Trigger=804999

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan 14 04:35:12 EST 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger804999/GCN5_download_cron
======================================================================

  Trigger: 00804999      Segment: 000

  BAT Trigger Time: 537504446.976   [s; MET]
      Trigger Stop: 537504448   [s; MET]
               UTC: 2018-01-13T02:47:06.667980    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 19.2146943402261   Dec: 68.6820023929715  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    20.3
     Image Trigger?:     NO
     Rate S/N Ratio:     87.5499857224432  [ if not an image trigger ]
     Image S/N Ratio:    20.3

  Flight Position:   [ source = BAT ]
    RA: 19.2146943402261   Dec: 68.6820023929715  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 19.2111225914476   Dec: 68.6822081577435  [deg; J2000]  
        { 01h 16m 50.7s , +68d 40' 55.9" }
         +/- 0.866665946409601 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.298432600373072 [arcmin] (formal 1-sigma fit error)
    SNR: 37.3165615231154
 
  Angular difference between Flight and Ground position is 0.078881 arcmin
 
  Partial Coding Fraction: 0.7578125    [ including projection effects ]

  Duration
     T90: 64 +/- 16
        Measured from: -12.9759998321533
                   to: 51.0240001678467     [s; relative to TRIGTIME]
     T50: 16 +/- 16
        Measured from: -12.9759998321533
                   to: 3.02400016784668     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 10.5240000486374     
                   to: 11.5240000486374     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -12.9759999513626     
                   to: 67.0240000486374     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.328866   2.257290   2.356782   0.761643
           0.061234   0.064740   0.057854   0.049797 [error]
 Peak      0.055160   0.101555   0.126122   0.037367
           0.007387   0.008486   0.008222   0.006280 [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 3.96e-07 9.43e-07 1.78e-06 8.21e-06 4.84e-06 1.13e-05   erg/cm2
              Error 2.70e-08 3.73e-08 5.80e-08 6.48e-07 1.51e-07 6.67e-07   erg/cm2
Peak flux Power-law 5.40e-01 7.45e-01 7.60e-01 1.41e+00 2.50e+00 3.46e+00   ph/cm2/s
              Error 8.63e-02 7.33e-02 6.34e-02 2.51e-01 2.00e-01 2.97e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.81e-07 9.47e-07 1.81e-06 7.00e-06 4.81e-06 1.01e-05   erg/cm2
              Error 3.60e-08 3.83e-08 7.14e-08 1.59e-06 1.59e-07 1.29e-06   erg/cm2
Peak flux Cutoff-PL 4.50e-01 7.70e-01 8.24e-01 7.76e-01 2.44e+00 2.82e+00   ph/cm2/s
              Error 1.09e-01 8.14e-02 8.26e-02 3.83e-01 2.07e-01 4.33e-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    1.079    0.057    -      -           5.74e-03 1.77e-04   58.190 57
CPL   0.951    0.199     494.6    0.0      6.50e-03 1.19e-03   57.190 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.972    0.132    -      -           2.17e-02 1.72e-03   49.380 57
CPL   0.296    0.596     146.6  191.0      4.31e-02 2.74e-02   44.880 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: 11.456000 sec.
T50 in the 50-300 keV band: 6.912000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   80.000  -12.976   67.024
T90    64.000  -12.976   51.024
T50    16.000  -12.976    3.024
Peak    1.000   10.524   11.524

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   19.2111 +68.6822 0.0052   27.1   27.8       6.9660    37.3  TRIG_00804999       
------------------------------------------
 
Foreground time interval of the image:
-12.976  67.024 (delta_t =  80.000 [sec])
Background time interval of the image:
-60.976 -12.976 (delta_t =  48.000 [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  -12.976 sec. to   67.024 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.07939     ( -0.0571898   0.0567088 )
Norm@50keV  : 5.74338E-03    ( -0.000177697   0.000177007 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.19 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     57 degrees of freedom 
# Null hypothesis probability =   4.313837e-01
 
Photon flux (15-150 keV)    in 80 sec: 0.664925 ( -0.0216372  0.0217276 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.83595e-06 ( -1.51327e-07  1.5149e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -12.976 sec. to   67.024 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.950673     ( -0.228849   0.170112 )
Epeak [keV] : 494.562      ( -494.562 -494.562 )
Norm@50keV  : 6.49626E-03    ( -0.000840435   0.00153482 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.19 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     56 degrees of freedom 
# Null hypothesis probability =   4.308336e-01
 
Photon flux (15-150 keV)    in 80 sec: 0.659415 ( -0.023376  0.023327 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.81037e-06 ( -1.5956e-07  1.58952e-07 ) ergs/cm2
 
Band function
Time interval is from  -12.976 sec. to   67.024 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.869940   ( 0.86994   0.86994 )
beta        : -1.07939    ( -0.0567041   0.0571971 )
Epeak [keV] : 53.2772      (   )
Norm@50keV   : 9.94672E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.19 using 59 PHA bins.
# Reduced chi-squared =          1.058 for     55 degrees of freedom 
# Null hypothesis probability =   3.588379e-01
 
Photon flux (15-150 keV)    in 80 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]    : 22.9464  (  )
R^2/D10^2   : 1.99540E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         229.74 using 59 PHA bins.
# Reduced chi-squared =         4.0306 for     57 degrees of freedom 
# Null hypothesis probability =   1.337208e-22
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.525e-07   1.024e-08
25- 50  8.262e-07   4.044e-08
50-150  3.250e-06   1.524e-07
15-150  4.229e-06   1.640e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 2.85927       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         270.41 using 59 PHA bins.
# Reduced chi-squared =         4.7440 for     57 degrees of freedom 
# Null hypothesis probability =   1.672537e-29
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.696e-07   2.000e-08
25- 50  1.096e-06   3.640e-08
50-150  2.403e-06   8.320e-08
15-150  4.068e-06   1.336e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.50819        (-0.996999      1.12867)
R1^2/D10^2  : 0.386738        (-0.143881      0.253718)
kT2 [keV]   : 32.6403        (-2.83528      3.77887)
R2^2/D10^2  : 5.85519E-03    (-0.00173119   0.00202654)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.64 using 59 PHA bins.
# Reduced chi-squared =          1.012 for     55 degrees of freedom 
# Null hypothesis probability =   4.505157e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.736e-07   5.224e-08
25- 50  9.402e-07   7.840e-08
50-150  3.519e-06   2.524e-07
15-150  4.833e-06   3.224e-07

Peak spectrum fit

Power-law model
Time interval is from   10.524 sec. to   11.524 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.972215     ( -0.133531   0.130715 )
Norm@50keV  : 2.17153E-02    ( -0.00171739   0.00171279 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.38 using 59 PHA bins.
# Reduced chi-squared =         0.8664 for     57 degrees of freedom 
# Null hypothesis probability =   7.532140e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.49679 ( -0.199883  0.200303 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.37171e-07 ( -1.99404e-08  2.00209e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   10.524 sec. to   11.524 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.296301     ( -0.641017   0.551349 )
Epeak [keV] : 146.601      ( -44.6563 337.348 )
Norm@50keV  : 4.30554E-02    ( -0.0180811   0.0366737 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.88 using 59 PHA bins.
# Reduced chi-squared =         0.8015 for     56 degrees of freedom 
# Null hypothesis probability =   8.566246e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.43693 ( -0.20678  0.20634 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.30892e-07 ( -2.1295e-08  2.1113e-08 ) ergs/cm2
 
Band function
Time interval is from   10.524 sec. to   11.524 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -5   -5 )
beta        : -1.02925    ( -0.146995   0.146016 )
Epeak [keV] : 27.8115      ( -27.8115 9.12909 )
Norm@50keV   : 780.486    ( -60.385   3.23464e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.43 using 59 PHA bins.
# Reduced chi-squared =         0.8623 for     55 degrees of freedom 
# Null hypothesis probability =   7.561471e-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]    : 22.2734  (-2.15163  2.48742)
R^2/D10^2   : 8.82501E-02  (-0.0249347   0.033442)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.17 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     57 degrees of freedom 
# Null hypothesis probability =   3.961299e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.056e-09   1.244e-09
25- 50  4.291e-08   5.425e-09
50-150  1.591e-07   2.225e-08
15-150  2.101e-07   2.105e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-12.0956      -200)
Norm        : 10.0754       (-0.827837     0.827837)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          98.42 using 59 PHA bins.
# Reduced chi-squared =          1.727 for     57 degrees of freedom 
# Null hypothesis probability =   5.434122e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.508e-08   2.450e-09
25- 50  4.825e-08   2.010e-08
50-150  1.058e-07   4.470e-08
15-150  1.791e-07   6.132e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.77385        (-3.23069      7.10157)
R1^2/D10^2  : 0.921322        (-0.717806      4.91176)
kT2 [keV]   : 28.8992        (-5.19195      31.5645)
R2^2/D10^2  : 3.45581E-02    (-0.0315052   0.0338094)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.26 using 59 PHA bins.
# Reduced chi-squared =         0.8228 for     55 degrees of freedom 
# Null hypothesis probability =   8.227394e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.447e-08   6.912e-09
25- 50  4.444e-08   1.803e-08
50-150  1.717e-07   5.622e-08
15-150  2.306e-07   7.422e-08
Plot creation:
Sun Jan 14 04:48:54 EST 2018