batgrbproduct analysis for trigger=895503

batgrbproduct Analysis for Trigger=895503

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Mar 28 17:15:23 EDT 2019
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger895503/GCN5_download_cron
======================================================================

  Trigger: 00895503      Segment: 000

  BAT Trigger Time: 575421396.544   [s; MET]
      Trigger Stop: 575421397.056   [s; MET]
               UTC: 2019-03-27T23:16:13.901880    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 297.816485815913   Dec: 39.0700161966286  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.64
     Image Trigger?:     NO
     Rate S/N Ratio:     6.16441400296898  [ if not an image trigger ]
     Image S/N Ratio:    6.64

  Flight Position:   [ source = BAT ]
    RA: 297.816485815913   Dec: 39.0700161966286  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 297.881345537845   Dec: 39.0726623847708  [deg; J2000]  
        { 19h 51m 31.5s , +39d 04' 21.6" }
         +/- 3.5839808001825 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.88034716204977 [arcmin] (formal 1-sigma fit error)
    SNR: 4.91097153091417
 
  Angular difference between Flight and Ground position is 3.025445 arcmin
 
  Partial Coding Fraction: 0.9296875    [ including projection effects ]

  Duration
     T90: 0.51199996471405 +/- 
        Measured from: 0
                   to: 0.51199996471405     [s; relative to TRIGTIME]
     T50: 0.51199996471405 +/- 
        Measured from: 0
                   to: 0.51199996471405     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 0.51199996471405 second)
        Measured from: -5.96046447753906e-08     
                   to: 0.511999905109406     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 0.51199996471405     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.001722   0.008134   0.021840   0.011023
           0.004782   0.005251   0.004560   0.003870 [error]
 Peak      0.001722   0.008134   0.021840   0.011023
           0.004782   0.005251   0.004560   0.003870 [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 6.04e-10 2.85e-09 1.15e-08 1.74e-07 3.41e-08 1.88e-07   erg/cm2
              Error 8.33e-10 2.22e-09 7.65e-09 1.75e-07 1.00e-08 1.72e-07   erg/cm2
Peak flux Power-law 3.67e-02 9.26e-02 1.86e-01 9.41e-01 5.03e-01 1.26e+00   ph/cm2/s
              Error 5.15e-02 7.45e-02 1.26e-01 8.19e-01 1.90e-01 7.33e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.06e-10 2.86e-09 1.15e-08 1.72e-07 3.41e-08 1.87e-07   erg/cm2
              Error 8.24e-10 1.85e-09 4.81e-09 -------- 1.00e-08 --------   erg/cm2
Peak flux Cutoff-PL 3.70e-02 9.29e-02 1.87e-01 9.32e-01 5.03e-01 1.25e+00   ph/cm2/s
              Error 5.12e-02 -------- 8.23e-02 -------- 1.89e-01 1.59e+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   -0.009    0.765    -      -           3.71e-03 2.93e-03   41.440 57
CPL  -0.017    0.341    9999.4    0.0      3.76e-03 3.06e-02   41.440 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL   -0.009    0.765    -      -           3.71e-03 2.93e-03   41.440 57
CPL  -0.017    0.341    9999.4    0.0      3.76e-03 3.06e-02   41.440 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    0.512    0.000    0.512
T90     0.512    0.000    0.512
T50     0.512    0.000    0.512
Peak    0.512   -0.000    0.512

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  297.8813 +39.0727 0.0392   13.1   58.3       0.0441     4.9  TRIG_00895503       
------------------------------------------
 
Foreground time interval of the image:
  0.000   0.512 (delta_t =   0.512 [sec])
Background time interval of the image:
-239.544 -67.694 (delta_t = 171.850 [sec])
-66.544 -45.644 (delta_t =  20.900 [sec])
-44.544  -4.544 (delta_t =  40.000 [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    0.512 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -9.48285E-03     ( -0.831409   0.699561 )
Norm@50keV  : 3.71142E-03    ( -0.00371142   0.00215732 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.44 using 59 PHA bins.
# Reduced chi-squared =         0.7270 for     57 degrees of freedom 
# Null hypothesis probability =   9.396958e-01
 
Photon flux (15-150 keV)    in 0.512 sec: 0.502760 ( -0.183176  0.196662 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.41053e-08 ( -1.00317e-08  1.00337e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.512 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.68087E-02     ( 0.0177616   0.699694 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 3.75939E-03    ( -0.00136468   0.0598407 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.44 using 59 PHA bins.
# Reduced chi-squared =         0.7400 for     56 degrees of freedom 
# Null hypothesis probability =   9.268393e-01
 
Photon flux (15-150 keV)    in 0.512 sec: 0.503178 ( -0.181904  0.195437 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.41345e-08 ( -1.0025e-08  1.00242e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.512 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.375233   ( 0.375445   0.375445 )
beta        : 9.40393E-03    ( -0.698848   -0.00936119 )
Epeak [keV] : 17.5512      ( -17.5486 -17.5486 )
Norm@50keV   : 5.84851E-03    ( -0.00373349   19891.9 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.44 using 59 PHA bins.
# Reduced chi-squared =         0.7534 for     55 degrees of freedom 
# Null hypothesis probability =   9.119353e-01
 
Photon flux (15-150 keV)    in 0.512 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]    : 57.6825  (-27.9447  -57.745)
R^2/D10^2   : 1.82134E-03  (-0.00181633   0.0077285)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.75 using 59 PHA bins.
# Reduced chi-squared =         0.7325 for     57 degrees of freedom 
# Null hypothesis probability =   9.351996e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.024e-10   1.832e-10
25- 50  2.252e-09   1.317e-09
50-150  3.132e-08   1.736e-08
15-150  3.388e-08   1.917e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-74.1875      -200)
Norm        : 2.11504       (-0.880401     0.880401)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.17 using 59 PHA bins.
# Reduced chi-squared =          1.003 for     57 degrees of freedom 
# Null hypothesis probability =   4.686304e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.696e-09   1.771e-09
25- 50  5.186e-09   3.241e-09
50-150  1.137e-08   7.457e-09
15-150  1.925e-08   1.257e-08
Double BB
R1^2/D10^2  : 1.86498E-04        (-0.000185778      0.00813194)
kT2 [keV]   : 19.7062        (-19.6347      -19.6347)
R2^2/D10^2  : 1.08686E-02    (-0.0110352   1.81793)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.75 using 59 PHA bins.
#Fit statistic : Chi-Squared =          41.34 using 59 PHA bins.
#Fit statistic : Chi-Squared =          41.25 using 59 PHA bins.
# Reduced chi-squared =         0.7592 for     55 degrees of freedom 
# Reduced chi-squared =         0.7517 for     55 degrees of freedom 
# Reduced chi-squared =         0.7501 for     55 degrees of freedom 
# Null hypothesis probability =   9.059906e-01
# Null hypothesis probability =   9.136728e-01
# Null hypothesis probability =   9.153095e-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    0.512 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -9.48285E-03     ( -0.831409   0.699561 )
Norm@50keV  : 3.71142E-03    ( -0.00371142   0.00215732 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.44 using 59 PHA bins.
# Reduced chi-squared =         0.7270 for     57 degrees of freedom 
# Null hypothesis probability =   9.396958e-01
 
Photon flux (15-150 keV)    in 0.512 sec: 0.502760 ( -0.183176  0.196662 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.41053e-08 ( -1.00317e-08  1.00337e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to    0.512 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.68087E-02     ( 0.0177616   0.699694 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 3.75939E-03    ( -0.00136468   0.0598407 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.44 using 59 PHA bins.
# Reduced chi-squared =         0.7400 for     56 degrees of freedom 
# Null hypothesis probability =   9.268393e-01
 
Photon flux (15-150 keV)    in 0.512 sec: 0.503178 ( -0.181904  0.195437 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.41345e-08 ( -1.0025e-08  1.00242e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to    0.512 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.375233   ( 0.375445   0.375445 )
beta        : 9.40393E-03    ( -0.698848   -0.00936119 )
Epeak [keV] : 17.5512      ( -17.5486 -17.5486 )
Norm@50keV   : 5.84851E-03    ( -0.00373349   19891.9 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.44 using 59 PHA bins.
# Reduced chi-squared =         0.7534 for     55 degrees of freedom 
# Null hypothesis probability =   9.119353e-01
 
Photon flux (15-150 keV)    in 0.512 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]    : 57.6825  (-27.9447  -57.745)
R^2/D10^2   : 1.82134E-03  (-0.00181633   0.0077285)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.75 using 59 PHA bins.
# Reduced chi-squared =         0.7325 for     57 degrees of freedom 
# Null hypothesis probability =   9.351996e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.024e-10   1.791e-10
25- 50  2.252e-09   1.284e-09
50-150  3.132e-08   1.745e-08
15-150  3.388e-08   1.910e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-74.1875      -200)
Norm        : 2.11504       (-0.880401     0.880401)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.17 using 59 PHA bins.
# Reduced chi-squared =          1.003 for     57 degrees of freedom 
# Null hypothesis probability =   4.686304e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.696e-09   1.800e-09
25- 50  5.186e-09   3.325e-09
50-150  1.137e-08   7.311e-09
15-150  1.925e-08   1.250e-08
Double BB
R1^2/D10^2  : 1.86498E-04        (-0.000185778      0.00813194)
kT2 [keV]   : 19.7062        (-19.6347      -19.6347)
R2^2/D10^2  : 1.08686E-02    (-0.0110352   1.79634)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.75 using 59 PHA bins.
#Fit statistic : Chi-Squared =          41.34 using 59 PHA bins.
#Fit statistic : Chi-Squared =          41.25 using 59 PHA bins.
# Reduced chi-squared =         0.7592 for     55 degrees of freedom 
# Reduced chi-squared =         0.7517 for     55 degrees of freedom 
# Reduced chi-squared =         0.7501 for     55 degrees of freedom 
# Null hypothesis probability =   9.059906e-01
# Null hypothesis probability =   9.136728e-01
# Null hypothesis probability =   9.153095e-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:
Thu Mar 28 17:18:44 EDT 2019