batgrbproduct analysis for trigger=885845

batgrbproduct Analysis for Trigger=885845

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sun Jan 27 13:13:31 EST 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger885845/GCN5_download_cron
======================================================================

  Trigger: 00885845      Segment: 000

  BAT Trigger Time: 570197376   [s; MET]
      Trigger Stop: 570197464   [s; MET]
               UTC: 2019-01-26T12:09:13.686920    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 207.004268706186   Dec: -63.2702643390262  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    12.68
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    12.68

  Flight Position:   [ source = BAT ]
    RA: 207.004268706186   Dec: -63.2702643390262  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 207.01837461681   Dec: -63.2729031497139  [deg; J2000]  
        { 13h 48m 04.4s , -63d 16' 22.5" }
         +/- 1.68589762746987 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.804832419612743 [arcmin] (formal 1-sigma fit error)
    SNR: 14.423604629993
 
  Angular difference between Flight and Ground position is 0.412272 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 88 +/- 
        Measured from: 0
                   to: 88     [s; relative to TRIGTIME]
     T50: 88 +/- 
        Measured from: 0
                   to: 88     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 88 second)
        Measured from: 0     
                   to: 88     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 88     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.668169   0.751807   0.502113   0.098949
           0.069108   0.068271   0.058912   0.054819 [error]
 Peak      0.668169   0.751807   0.502113   0.098949
           0.069108   0.068271   0.058912   0.054819 [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 1.79e-07 3.02e-07 3.89e-07 1.01e-06 1.15e-06 1.88e-06   erg/cm2
              Error 2.92e-08 3.03e-08 5.76e-08 3.18e-07 1.34e-07 3.66e-07   erg/cm2
Peak flux Power-law 6.56e-02 6.10e-02 3.93e-02 3.90e-02 1.82e-01 2.05e-01   ph/cm2/s
              Error 1.10e-02 6.21e-03 5.59e-03 1.14e-02 1.82e-02 2.06e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.78e-07 3.03e-07 3.90e-07 1.01e-06 1.15e-06 1.86e-06   erg/cm2
              Error 2.32e-08 2.40e-08 4.31e-08 6.12e-07 1.40e-07 5.24e-07   erg/cm2
Peak flux Cutoff-PL 6.58e-02 6.10e-02 3.92e-02 3.84e-02 1.82e-01 2.05e-01   ph/cm2/s
              Error 1.13e-02 6.58e-03 5.63e-03 2.14e-02 1.82e-02 2.51e-02   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    1.635    0.186    -      -           1.40e-03 1.51e-04   57.880 57
CPL   1.639    0.187    9999.4   -0.0      1.40e-03 1.15e-03   57.880 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.635    0.186    -      -           1.40e-03 1.51e-04   57.880 57
CPL   1.639    0.187    9999.4   -0.0      1.40e-03 1.15e-03   57.880 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   88.000    0.000   88.000
T90    88.000    0.000   88.000
T50    88.000    0.000   88.000
Peak   88.000    0.000   88.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  207.0184 -63.2729 0.0134    0.0 -136.5       2.0382    14.4  TRIG_00885845       
------------------------------------------
 
Foreground time interval of the image:
  0.000  88.000 (delta_t =  88.000 [sec])
Background time interval of the image:

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   88.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63490     ( -0.184538   0.188266 )
Norm@50keV  : 1.40029E-03    ( -0.000152149   0.0001498 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.88 using 59 PHA bins.
# Reduced chi-squared =          1.015 for     57 degrees of freedom 
# Null hypothesis probability =   4.426547e-01
 
Photon flux (15-150 keV)    in 88 sec: 0.181944 ( -0.0181727  0.0181952 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14782e-06 ( -1.33284e-07  1.35407e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   88.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63898     ( -0.189275   0.185666 )
Epeak [keV] : 9999.36      ( -9999.35 -9999.36 )
Norm@50keV  : 1.39951E-03    ( -0.00072391   0.00158038 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.88 using 59 PHA bins.
# Reduced chi-squared =          1.034 for     56 degrees of freedom 
# Null hypothesis probability =   4.056154e-01
 
Photon flux (15-150 keV)    in 88 sec: 0.181949 ( -0.018195  0.018113 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14838e-06 ( -1.46062e-07  1.33118e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   88.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.47911   ( 1.47915   1.47915 )
beta        : -1.63493    ( 1.63493   0.184609 )
Epeak [keV] : 40.1550      ( -39.9631 -39.9631 )
Norm@50keV   : 2.04360E-03    ( -0.000782672   0.208635 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.88 using 59 PHA bins.
# Reduced chi-squared =          1.052 for     55 degrees of freedom 
# Null hypothesis probability =   3.695198e-01
 
Photon flux (15-150 keV)    in 88 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]    : 12.8568  (-1.68223  2.03713)
R^2/D10^2   : 3.34628E-02  (-0.0137231   0.0222451)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          88.22 using 59 PHA bins.
# Reduced chi-squared =          1.548 for     57 degrees of freedom 
# Null hypothesis probability =   5.014712e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.032e-07   2.096e-08
25- 50  3.513e-07   4.880e-08
50-150  3.648e-07   8.624e-08
15-150  8.193e-07   1.088e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 162.310       (-63.4889      -162.184)
Norm        : 0.742704       (-0.0801777     0.0968813)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.98 using 59 PHA bins.
# Reduced chi-squared =          1.035 for     57 degrees of freedom 
# Null hypothesis probability =   4.028032e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.667e-07   6.030e-08
25- 50  3.124e-07   1.642e-07
50-150  6.364e-07   3.542e-07
15-150  1.115e-06   5.511e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.72603        (-2.58963      2.29203)
R1^2/D10^2  : 0.243563        (-0.149728      1.27426)
kT2 [keV]   : 27.4420        (-9.21291      24.7898)
R2^2/D10^2  : 1.81898E-03    (-0.00153402   0.0063261)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.64 using 59 PHA bins.
# Reduced chi-squared =          1.103 for     55 degrees of freedom 
# Null hypothesis probability =   2.796703e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.691e-07   6.537e-08
25- 50  3.069e-07   1.070e-07
50-150  6.736e-07   3.612e-07
15-150  1.149e-06   4.756e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   88.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63490     ( -0.184538   0.188266 )
Norm@50keV  : 1.40029E-03    ( -0.000152149   0.0001498 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.88 using 59 PHA bins.
# Reduced chi-squared =          1.015 for     57 degrees of freedom 
# Null hypothesis probability =   4.426547e-01
 
Photon flux (15-150 keV)    in 88 sec: 0.181944 ( -0.0181727  0.0181952 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14782e-06 ( -1.33284e-07  1.35407e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   88.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63898     ( -0.189275   0.185666 )
Epeak [keV] : 9999.36      ( -9999.35 -9999.36 )
Norm@50keV  : 1.39951E-03    ( -0.00072391   0.00158038 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.88 using 59 PHA bins.
# Reduced chi-squared =          1.034 for     56 degrees of freedom 
# Null hypothesis probability =   4.056154e-01
 
Photon flux (15-150 keV)    in 88 sec: 0.181949 ( -0.018195  0.018113 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14838e-06 ( -1.46062e-07  1.33118e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   88.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.47911   ( 1.47915   1.47915 )
beta        : -1.63493    ( 1.63493   0.184609 )
Epeak [keV] : 40.1550      ( -39.9631 -39.9631 )
Norm@50keV   : 2.04360E-03    ( -0.000782672   0.208635 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.88 using 59 PHA bins.
# Reduced chi-squared =          1.052 for     55 degrees of freedom 
# Null hypothesis probability =   3.695198e-01
 
Photon flux (15-150 keV)    in 88 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]    : 12.8568  (-1.68223  2.03713)
R^2/D10^2   : 3.34628E-02  (-0.0137231   0.0222451)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          88.22 using 59 PHA bins.
# Reduced chi-squared =          1.548 for     57 degrees of freedom 
# Null hypothesis probability =   5.014712e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.032e-07   1.958e-08
25- 50  3.513e-07   4.968e-08
50-150  3.648e-07   8.571e-08
15-150  8.193e-07   1.087e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 162.310       (-63.4889      -162.184)
Norm        : 0.742704       (-0.0801777     0.0968813)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.98 using 59 PHA bins.
# Reduced chi-squared =          1.035 for     57 degrees of freedom 
# Null hypothesis probability =   4.028032e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.667e-07   6.305e-08
25- 50  3.124e-07   1.338e-07
50-150  6.364e-07   3.606e-07
15-150  1.115e-06   5.703e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.72603        (-2.58963      2.29203)
R1^2/D10^2  : 0.243563        (-0.149728      1.27426)
kT2 [keV]   : 27.4420        (-9.21291      24.7898)
R2^2/D10^2  : 1.81898E-03    (-0.00153402   0.0063261)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.64 using 59 PHA bins.
# Reduced chi-squared =          1.103 for     55 degrees of freedom 
# Null hypothesis probability =   2.796703e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.691e-07   7.181e-08
25- 50  3.069e-07   1.082e-07
50-150  6.736e-07   3.603e-07
15-150  1.149e-06   4.566e-07
Plot creation:
Sun Jan 27 13:18:00 EST 2019