batgrbproduct analysis for trigger=866757

batgrbproduct Analysis for Trigger=866757

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Oct 13 19:47:52 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger866757/GCN5_download_cron
======================================================================

  Trigger: 00866757      Segment: 000

  BAT Trigger Time: 561064010.304   [s; MET]
      Trigger Stop: 561064011.328   [s; MET]
               UTC: 2018-10-12T19:06:28.561000    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 264.742839674306   Dec: -12.4731537437648  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.53
     Image Trigger?:     NO
     Rate S/N Ratio:     24.5356882927706  [ if not an image trigger ]
     Image S/N Ratio:    6.53

  Flight Position:   [ source = BAT ]
    RA: 264.742839674306   Dec: -12.4731537437648  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 264.771405842648   Dec: -12.3858411272199  [deg; J2000]  
        { 17h 39m 05.1s , -12d 23' 09.0" }
         +/- 5.06885844080379 [arcmin] (estimated 90% radius based on SNR)
         +/- 3.05236269129175 [arcmin] (formal 1-sigma fit error)
    SNR: 2.99298032398198
 
  Angular difference between Flight and Ground position is 5.499652 arcmin
 
  Partial Coding Fraction: 0.8203125    [ including projection effects ]

  Duration
     T90: 1.0239999294281 +/- 
        Measured from: 0
                   to: 1.0239999294281     [s; relative to TRIGTIME]
     T50: 1.0239999294281 +/- 
        Measured from: 0
                   to: 1.0239999294281     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 1.0239999294281 second)
        Measured from: 0     
                   to: 1.0239999294281     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 1.0239999294281     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    -0.000618   0.003235   0.051365   0.049965
           0.012548   0.014596   0.013189   0.016225 [error]
 Peak     -0.000618   0.003235   0.051365   0.049965
           0.012548   0.014596   0.013189   0.016225 [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 1.15e-09 6.30e-09 2.98e-08 5.90e-07 9.33e-08 6.28e-07   erg/cm2
              Error 1.85e-09 6.40e-09 2.12e-08 9.10e-07 3.53e-08 7.94e-07   erg/cm2
Peak flux Power-law 3.49e-02 1.01e-01 2.40e-01 1.56e+00 6.49e-01 1.93e+00   ph/cm2/s
              Error 5.71e-02 1.06e-01 1.62e-01 1.81e+00 4.22e-01 1.69e+00   ph/cm2/s
 
Fluence   Cutoff-PL 4.55e-10 5.75e-09 3.66e-08 1.40e-07 9.19e-08 3.10e-07   erg/cm2
              Error 1.64e-09 5.23e-09 2.80e-08 5.15e-07 3.97e-08 --------   erg/cm2
Peak flux Cutoff-PL 9.40e-03 7.49e-02 2.93e-01 4.52e-01 6.26e-01 8.31e-01   ph/cm2/s
              Error 5.03e-02 1.00e-01 2.26e-01 1.31e+00 2.67e-01 1.06e+00   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   -0.244    1.445    -      -           4.36e-03 3.74e-03   53.000 57
CPL  -1.727    0.757     201.4    0.0      1.11e-02 6.21e+00   52.460 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL   -0.244    1.445    -      -           4.36e-03 3.74e-03   53.000 57
CPL  -1.727    0.757     201.4    0.0      1.11e-02 6.21e+00   52.460 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    1.024    0.000    1.024
T90     1.024    0.000    1.024
T50     1.024    0.000    1.024
Peak    1.024    0.000    1.024

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  264.7714 -12.3858 0.0642   29.0    4.7       0.0890     3.0  TRIG_00866757       
------------------------------------------
 
Foreground time interval of the image:
  0.000   1.024 (delta_t =   1.024 [sec])
Background time interval of the image:
-60.203 -47.679 (delta_t =  12.524 [sec])
-46.304 -10.304 (delta_t =  36.000 [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    0.000 sec. to    1.024 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.243746     ( -2.06491   0.825297 )
Norm@50keV  : 4.36449E-03    ( -0.00436524   0.00311303 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.00 using 59 PHA bins.
# Reduced chi-squared =         0.9299 for     57 degrees of freedom 
# Null hypothesis probability =   6.256925e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.648780 ( -0.55687  0.286892 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.33072e-08 ( -3.53023e-08  3.53097e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    1.024 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.72710     ( 1.7714   3.28507 )
Epeak [keV] : 201.404      ( -194.306 -194.306 )
Norm@50keV  : 1.11269E-02    ( -0.0121068   12.4166 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.46 using 59 PHA bins.
# Reduced chi-squared =         0.9367 for     56 degrees of freedom 
# Null hypothesis probability =   6.097594e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.625550 ( -0.254  0.280777 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.19289e-08 ( -4.21017e-08  3.73951e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.38548   ( -0.265473   -0.265473 )
beta        : -0.479283    ( 0.479415   1.68473 )
Epeak [keV] : 102.625      ( -102.618 191.849 )
Norm@50keV   : 0.115360    ( -0.111675   0.0845732 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.92 using 59 PHA bins.
# Reduced chi-squared =         0.9440 for     55 degrees of freedom 
# Null hypothesis probability =   5.931115e-01
 
Photon flux (15-150 keV)    in 1.024 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]    : 58.6956  (-58.6956  -58.6956)
R^2/D10^2   : 2.43565E-03  (-0.00243545   0.0119664)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.60 using 59 PHA bins.
# Reduced chi-squared =         0.9229 for     57 degrees of freedom 
# Null hypothesis probability =   6.405082e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.358       (-111.264      -199.361)
Norm        : 2.06011       (-1.33208     1.3321)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.42 using 59 PHA bins.
# Reduced chi-squared =          1.148 for     57 degrees of freedom 
# Null hypothesis probability =   2.075521e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 0.216994        (-0.216994      -0.216994)
R1^2/D10^2  : 1.91409        (-1.91409      -1.91409)
kT2 [keV]   : 58.6898        (-30.6075      -58.6898)
R2^2/D10^2  : 2.43594E-03    (-0.00221165   0.0119662)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.60 using 59 PHA bins.
# Reduced chi-squared =         0.9565 for     55 degrees of freedom 
# Null hypothesis probability =   5.666730e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.243746     ( -2.06491   0.825297 )
Norm@50keV  : 4.36449E-03    ( -0.00436524   0.00311303 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.00 using 59 PHA bins.
# Reduced chi-squared =         0.9299 for     57 degrees of freedom 
# Null hypothesis probability =   6.256925e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.648780 ( -0.55687  0.286892 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.33072e-08 ( -3.53023e-08  3.53097e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    1.024 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.72710     ( 1.7714   3.28507 )
Epeak [keV] : 201.404      ( -194.306 -194.306 )
Norm@50keV  : 1.11269E-02    ( -0.0121068   12.4166 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.46 using 59 PHA bins.
# Reduced chi-squared =         0.9367 for     56 degrees of freedom 
# Null hypothesis probability =   6.097594e-01
 
Photon flux (15-150 keV)    in 1.024 sec: 0.625550 ( -0.254  0.280777 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.19289e-08 ( -4.21017e-08  3.73951e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    1.024 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.38548   ( -0.265473   -0.265473 )
beta        : -0.479283    ( 0.479415   1.68074 )
Epeak [keV] : 102.625      ( -102.618 177.504 )
Norm@50keV   : 0.115360    ( -0.111675   0.0845732 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.92 using 59 PHA bins.
# Reduced chi-squared =         0.9440 for     55 degrees of freedom 
# Null hypothesis probability =   5.931115e-01
 
Photon flux (15-150 keV)    in 1.024 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]    : 58.6956  (-58.6956  -58.6956)
R^2/D10^2   : 2.43565E-03  (-0.00243545   0.0119664)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.60 using 59 PHA bins.
# Reduced chi-squared =         0.9229 for     57 degrees of freedom 
# Null hypothesis probability =   6.405082e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.358       (-111.264      -199.361)
Norm        : 2.06011       (-1.33208     1.3321)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.42 using 59 PHA bins.
# Reduced chi-squared =          1.148 for     57 degrees of freedom 
# Null hypothesis probability =   2.075521e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 0.216994        (-0.216994      -0.216994)
R1^2/D10^2  : 1.91409        (-1.91409      -1.91409)
kT2 [keV]   : 58.6898        (-30.6075      -58.6898)
R2^2/D10^2  : 2.43594E-03    (-0.00221165   0.0119662)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.60 using 59 PHA bins.
# Reduced chi-squared =         0.9565 for     55 degrees of freedom 
# Null hypothesis probability =   5.666730e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Plot creation:
Sat Oct 13 19:51:29 EDT 2018