batgrbproduct Analysis for Trigger=677582

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Mar  4 20:12:11 EST 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger677582/GCN5_download_cron
======================================================================

  Trigger: 00677582      Segment: 000

  BAT Trigger Time: 478737624   [s; MET]
      Trigger Stop: 478738000   [s; MET]
               UTC: 2016-03-03T22:40:08.071940    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 257.21734079521   Dec: -36.4009142002776  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6.3
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    6.3

  Flight Position:   [ source = BAT ]
    RA: 257.21734079521   Dec: -36.4009142002776  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 257.26018870247   Dec: -36.4670827654465  [deg; J2000]  
        { 17h 09m 02.4s , -36d 28' 01.5" }
         +/- 5.86191905855307 [arcmin] (estimated 90% radius based on SNR)
         +/- 4.30039079446822 [arcmin] (formal 1-sigma fit error)
    SNR: 2.43174841145083
 
  Angular difference between Flight and Ground position is 4.476604 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 376 +/- 
        Measured from: 0
                   to: 376     [s; relative to TRIGTIME]
     T50: 376 +/- 
        Measured from: 0
                   to: 376     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 376 second)
        Measured from: 0     
                   to: 376     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 376     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.146365   0.251233   0.131474   0.003646
           0.086317   0.075230   0.064086   0.059906 [error]
 Peak      0.146365   0.251233   0.131474   0.003646
           0.086317   0.075230   0.064086   0.059906 [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 5.07e-08 8.55e-08 1.10e-07 2.83e-07 3.24e-07 5.29e-07   erg/cm2
              Error 3.03e-08 3.34e-08 5.88e-08 3.74e-07 1.42e-07 3.90e-07   erg/cm2
Peak flux Power-law 9.00e-03 8.34e-03 5.35e-03 5.29e-03 2.49e-02 2.80e-02   ph/cm2/s
              Error 5.48e-03 3.31e-03 2.78e-03 6.46e-03 9.66e-03 1.08e-02   ph/cm2/s
 
Fluence   Cutoff-PL 3.93e-08 9.76e-08 1.15e-07 5.38e-08 2.91e-07 3.06e-07   erg/cm2
              Error 3.71e-08 4.24e-08 5.36e-08 3.26e-07 1.45e-07 3.77e-07   erg/cm2
Peak flux Cutoff-PL 6.84e-03 9.37e-03 5.75e-03 1.41e-03 2.31e-02 2.34e-02   ph/cm2/s
              Error 6.68e-03 4.15e-03 4.59e-03 5.71e-03 1.04e-02 1.23e-02   ph/cm2/s
 
Fluence        Band 3.80e-08 9.61e-08 1.28e-07 2.50e-07 3.43e-07 5.29e-07   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 7.42e-03 9.06e-03 5.83e-03 2.22e-03 2.39e-02 2.46e-02   ph/cm2/s
              Error -------- -------- 4.55e-03 -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.640    0.706    -      -           1.91e-04 7.91e-05   49.730 57
CPL   0.129    4.576      59.9    0.0      1.13e-03 1.14e+01   48.990 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.640    0.706    -      -           1.91e-04 7.91e-05   49.730 57
CPL   0.129    4.599      59.9    0.0      1.13e-03 1.14e+01   48.990 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  376.000    0.000  376.000
T90   376.000    0.000  376.000
T50   376.000    0.000  376.000
Peak  376.000    0.000  376.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  257.2602 -36.4671 0.0795    0.1   21.2       0.5196     2.4  TRIG_00677582       
------------------------------------------
 
Foreground time interval of the image:
  0.000 131.900 (delta_t = 131.900 [sec])
133.000 183.062 (delta_t =  50.062 [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
Multiple GTIs in the spectrum
tstart tstop
0.000000 131.900000
133.000000 183.061900
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63975     ( -0.675914   0.736259 )
Norm@50keV  : 1.91255E-04    ( -8.06552e-05   7.75616e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.73 using 59 PHA bins.
# Reduced chi-squared =         0.8724 for     57 degrees of freedom 
# Null hypothesis probability =   7.419525e-01
 
Photon flux (15-150 keV)    in 182 sec: 2.48895E-02 ( -0.00963598  0.0096925 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.24055e-07 ( -1.37662e-07  1.45558e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.000000 131.900000
133.000000 183.061900
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.129249     ( -7.12537   2.02626 )
Epeak [keV] : 59.9203      ( -59.9208 -59.9208 )
Norm@50keV  : 1.12570E-03    ( -0.00112573   22.7285 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.99 using 59 PHA bins.
# Reduced chi-squared =         0.8748 for     56 degrees of freedom 
# Null hypothesis probability =   7.352747e-01
 
Photon flux (15-150 keV)    in 182 sec: 2.30815E-02 ( -0.0105618  0.0103324 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.90534e-07 ( -1.33106e-07  1.57765e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
0.000000 131.900000
133.000000 183.061900
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.277281   ( 0.728086   0.728086 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 61.0344      ( -39.6651 208.893 )
Norm@50keV   : 9.54297E-04    ( -0.000953939   0.549784 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.99 using 59 PHA bins.
# Reduced chi-squared =         0.8908 for     55 degrees of freedom 
# Null hypothesis probability =   7.022797e-01
 
Photon flux (15-150 keV)    in 182 sec: 2.38555E-02 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.4265e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.9251  (-4.71288  7.91951)
R^2/D10^2   : 3.67500E-03  (-0.00367524   0.0125731)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.33 using 59 PHA bins.
# Reduced chi-squared =         0.8654 for     57 degrees of freedom 
# Null hypothesis probability =   7.549450e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.741e-08   1.799e-08
25- 50  1.014e-07   6.353e-08
50-150  1.291e-07   9.093e-08
15-150  2.579e-07   1.636e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 148.687       (-105.866      -144.884)
Norm        : 0.103251       (-0.0409569     0.0718357)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.37 using 59 PHA bins.
# Reduced chi-squared =         0.8661 for     57 degrees of freedom 
# Null hypothesis probability =   7.537179e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.830e-08   2.875e-08
25- 50  8.941e-08   5.553e-08
50-150  1.758e-07   1.195e-07
15-150  3.135e-07   2.007e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.86713        (-2.86712      20.2819)
R1^2/D10^2  : 0.879988        (-0.881621      10.5549)
kT2 [keV]   : 15.3969        (-5.54208      -15.3964)
R2^2/D10^2  : 2.42691E-03    (-0.00215709   0.0103214)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.55 using 59 PHA bins.
# Reduced chi-squared =         0.8827 for     55 degrees of freedom 
# Null hypothesis probability =   7.179185e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.430e-08   2.087e-08
25- 50  9.158e-08   5.480e-08
50-150  1.449e-07   9.528e-08
15-150  2.808e-07   1.618e-07

Peak spectrum fit

Power-law model
Time interval is from  133.000 sec. to  183.062 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63975     ( -0.675914   0.736259 )
Norm@50keV  : 1.91255E-04    ( -8.06552e-05   7.75616e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.73 using 59 PHA bins.
# Reduced chi-squared =         0.8724 for     57 degrees of freedom 
# Null hypothesis probability =   7.419525e-01
 
Photon flux (15-150 keV)    in 182 sec: 2.48895E-02 ( -0.00963598  0.0096925 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.24055e-07 ( -1.37662e-07  1.45558e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  133.000 sec. to  183.062 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.129249     ( -7.12537   2.07265 )
Epeak [keV] : 59.9203      ( -59.9208 -59.9208 )
Norm@50keV  : 1.12570E-03    ( -0.00112573   22.7285 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.99 using 59 PHA bins.
# Reduced chi-squared =         0.8748 for     56 degrees of freedom 
# Null hypothesis probability =   7.352747e-01
 
Photon flux (15-150 keV)    in 182 sec: 2.30815E-02 ( -0.0105618  0.0103324 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.90534e-07 ( -1.33106e-07  1.57765e-07 ) ergs/cm2
 
Band function
Time interval is from  133.000 sec. to  183.062 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.277281   ( 0.728086   0.728086 )
beta        : -10.0000    ( 10   0 )
Epeak [keV] : 61.0344      ( -35.0957 208.892 )
Norm@50keV   : 9.54297E-04    ( -0.000953939   0.549784 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.99 using 59 PHA bins.
# Reduced chi-squared =         0.8908 for     55 degrees of freedom 
# Null hypothesis probability =   7.022797e-01
 
Photon flux (15-150 keV)    in 182 sec: 2.38555E-02 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.4265e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.9251  (-4.71288  7.91951)
R^2/D10^2   : 3.67500E-03  (-0.00367524   0.0125731)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.33 using 59 PHA bins.
# Reduced chi-squared =         0.8654 for     57 degrees of freedom 
# Null hypothesis probability =   7.549450e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.741e-08   1.789e-08
25- 50  1.014e-07   6.338e-08
50-150  1.291e-07   9.300e-08
15-150  2.579e-07   1.696e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 148.687       (-105.866      -144.884)
Norm        : 0.103251       (-0.0409569     0.0718357)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.37 using 59 PHA bins.
# Reduced chi-squared =         0.8661 for     57 degrees of freedom 
# Null hypothesis probability =   7.537179e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.830e-08   2.907e-08
25- 50  8.941e-08   5.414e-08
50-150  1.758e-07   1.158e-07
15-150  3.135e-07   1.972e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.86713        (-2.86712      20.2819)
R1^2/D10^2  : 0.879988        (-0.881621      10.3267)
kT2 [keV]   : 15.3969        (-5.54208      -15.3964)
R2^2/D10^2  : 2.42691E-03    (-0.00242691   0.0103637)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.55 using 59 PHA bins.
# Reduced chi-squared =         0.8827 for     55 degrees of freedom 
# Null hypothesis probability =   7.179185e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.430e-08   1.978e-08
25- 50  9.158e-08   6.074e-08
50-150  1.449e-07   1.022e-07
15-150  2.808e-07   1.671e-07
Plot creation:
Fri Mar  4 20:16:33 EST 2016