batgrbproduct analysis for trigger=884906

batgrbproduct Analysis for Trigger=884906

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jan 22 11:36:24 EST 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger884906/GCN5_download_cron
======================================================================

  Trigger: 00884906      Segment: 000

  BAT Trigger Time: 569758040   [s; MET]
      Trigger Stop: 569758104   [s; MET]
               UTC: 2019-01-21T10:06:57.714500    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 247.749497541048   Dec: -47.772513886198  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.18
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.18

  Flight Position:   [ source = BAT ]
    RA: 247.749497541048   Dec: -47.772513886198  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 247.82705752032   Dec: -47.7537129942745  [deg; J2000]  
        { 16h 31m 18.5s , -47d 45' 13.4" }
         +/- 2.59109056119778 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.04751209136092 [arcmin] (formal 1-sigma fit error)
    SNR: 7.80600746826595
 
  Angular difference between Flight and Ground position is 3.325319 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.422405   0.310436   0.181087   0.038328
           0.058104   0.055160   0.047493   0.044702 [error]
 Peak      0.422405   0.310436   0.181087   0.038328
           0.058104   0.055160   0.047493   0.044702 [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 1.18e-07 1.42e-07 1.24e-07 1.85e-07 4.48e-07 5.68e-07   erg/cm2
              Error 2.64e-08 2.52e-08 4.37e-08 1.29e-07 9.73e-08 1.81e-07   erg/cm2
Peak flux Power-law 6.01e-02 4.02e-02 1.75e-02 1.05e-02 1.23e-01 1.28e-01   ph/cm2/s
              Error 1.38e-02 6.95e-03 5.97e-03 6.83e-03 2.03e-02 2.16e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.18e-07 1.42e-07 1.24e-07 1.83e-07 4.48e-07 5.66e-07   erg/cm2
              Error 2.64e-08 2.95e-08 4.59e-08 1.85e-07 1.03e-07 2.70e-07   erg/cm2
Peak flux Cutoff-PL 5.98e-02 4.03e-02 1.77e-02 1.07e-02 1.23e-01 1.28e-01   ph/cm2/s
              Error 1.46e-02 6.87e-03 -------- 9.15e-03 2.04e-02 2.33e-02   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 5.93e-02 4.03e-02 1.79e-02 1.09e-02 1.23e-01 1.29e-01   ph/cm2/s
              Error 1.47e-02 -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.197    0.369    -      -           7.44e-04 1.89e-04   57.100 57
CPL   1.971    0.000       5.6    0.0      9.99e-04 0.00e+00   57.170 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.197    0.369    -      -           7.44e-04 1.89e-04   57.100 57
CPL   1.971    0.000       5.6    0.0      9.99e-04 0.00e+00   57.170 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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  247.8271 -47.7537 0.0245   10.0 -165.9       0.9062     7.8  TRIG_00884906       
------------------------------------------
 
Foreground time interval of the image:
  0.000  64.000 (delta_t =  64.000 [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   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.19676     ( -0.3445   0.394453 )
Norm@50keV  : 7.44328E-04    ( -0.000193122   0.00018459 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.10 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     57 degrees of freedom 
# Null hypothesis probability =   4.712942e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.123017 ( -0.020337  0.0203372 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.47683e-07 ( -9.47955e-08  9.98784e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97063     (     )
Epeak [keV] : 5.64301      (   )
Norm@50keV  : 9.98691E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.17 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     56 degrees of freedom 
# Null hypothesis probability =   4.313298e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.122975 ( -0.020468  0.02033 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.47636e-07 ( -1.07136e-07  9.87622e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.99512   ( 9.99512   9.99512 )
beta        : -2.19676    ( -0.394453   0.34496 )
Epeak [keV] : 9.54502      ( -9.54502 -9.54502 )
Norm@50keV   : 0.101165    ( -0.026248   0.0250883 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.10 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     55 degrees of freedom 
# Null hypothesis probability =   3.969198e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.122781 (    ) 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]    : 8.85728  (-1.93864  2.44247)
R^2/D10^2   : 8.67693E-02  (-0.0524687   0.142283)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.58 using 59 PHA bins.
# Reduced chi-squared =          1.203 for     57 degrees of freedom 
# Null hypothesis probability =   1.399432e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.410e-08   3.000e-08
25- 50  1.743e-07   5.430e-08
50-150  6.331e-08   3.141e-08
15-150  3.217e-07   9.558e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 50.5852       (-19.8597      43.008)
Norm        : 0.685393       (-0.181915     0.286412)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.21 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     57 degrees of freedom 
# Null hypothesis probability =   4.305261e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.075e-07   2.486e-08
25- 50  1.551e-07   4.179e-08
50-150  1.522e-07   7.465e-08
15-150  4.149e-07   1.239e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.26496        (-1.72382      2.33294)
R1^2/D10^2  : 4.41260        (-4.03722      860.75)
kT2 [keV]   : 14.2596        (-4.25341      8.11246)
R2^2/D10^2  : 1.13950E-02    (-0.00955467   0.0149)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.18 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     55 degrees of freedom 
# Null hypothesis probability =   4.305513e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.189e-07   6.342e-08
25- 50  1.354e-07   7.472e-08
50-150  1.601e-07   1.006e-07
15-150  4.144e-07   2.150e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.19676     ( -0.3445   0.394453 )
Norm@50keV  : 7.44328E-04    ( -0.000193122   0.00018459 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.10 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     57 degrees of freedom 
# Null hypothesis probability =   4.712942e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.123017 ( -0.020337  0.0203372 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.47683e-07 ( -9.47955e-08  9.98784e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.97063     (     )
Epeak [keV] : 5.64301      (   )
Norm@50keV  : 9.98691E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.17 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     56 degrees of freedom 
# Null hypothesis probability =   4.313298e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.122975 ( -0.020468  0.02033 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.47636e-07 ( -1.07136e-07  9.87622e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.99512   ( 9.99512   9.99512 )
beta        : -2.19676    ( -0.394453   0.34496 )
Epeak [keV] : 9.54502      ( -9.54502 -9.54502 )
Norm@50keV   : 0.101165    ( -0.026248   0.0250883 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.10 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     55 degrees of freedom 
# Null hypothesis probability =   3.969198e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.122781 (    ) 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]    : 8.85728  (-1.93864  2.44247)
R^2/D10^2   : 8.67693E-02  (-0.0524687   0.142283)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.58 using 59 PHA bins.
# Reduced chi-squared =          1.203 for     57 degrees of freedom 
# Null hypothesis probability =   1.399432e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.410e-08   2.861e-08
25- 50  1.743e-07   5.597e-08
50-150  6.331e-08   2.998e-08
15-150  3.217e-07   8.256e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 50.5852       (-19.8597      43.008)
Norm        : 0.685393       (-0.181915     0.286412)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.21 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     57 degrees of freedom 
# Null hypothesis probability =   4.305261e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.075e-07   2.675e-08
25- 50  1.551e-07   3.242e-08
50-150  1.522e-07   8.103e-08
15-150  4.149e-07   1.063e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.26496        (-1.72382      2.33294)
R1^2/D10^2  : 4.41260        (-4.03722      860.75)
kT2 [keV]   : 14.2596        (-4.25341      8.11246)
R2^2/D10^2  : 1.13950E-02    (-0.00955467   0.0150375)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.18 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     55 degrees of freedom 
# Null hypothesis probability =   4.305513e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.189e-07   6.403e-08
25- 50  1.354e-07   7.283e-08
50-150  1.601e-07   1.002e-07
15-150  4.144e-07   2.137e-07
Plot creation:
Tue Jan 22 11:41:01 EST 2019