batgrbproduct analysis for trigger=780845

batgrbproduct Analysis for Trigger=780845

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Oct 21 16:25:39 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger780845/GCN5_download_cron
======================================================================

  Trigger: 00780845      Segment: 000

  BAT Trigger Time: 530233650.624   [s; MET]
      Trigger Stop: 530233658.816   [s; MET]
               UTC: 2017-10-20T23:07:10.751760    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 39.2624242628798   Dec: 15.1860174459639  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.64
     Image Trigger?:     NO
     Rate S/N Ratio:     17.464249196573  [ if not an image trigger ]
     Image S/N Ratio:    8.64

  Flight Position:   [ source = BAT ]
    RA: 39.2624242628798   Dec: 15.1860174459639  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 39.2594346455258   Dec: 15.1991697734915  [deg; J2000]  
        { 02h 37m 02.3s , +15d 11' 57.0" }
         +/- 1.80677620475069 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.604640018526286 [arcmin] (formal 1-sigma fit error)
    SNR: 13.0650822513359
 
  Angular difference between Flight and Ground position is 0.807903 arcmin
 
  Partial Coding Fraction: 0.4804688    [ including projection effects ]

  Duration
     T90: 42.0160000324249 +/- 9.3501486549555
        Measured from: 0.248000085353851
                   to: 42.2640001177788     [s; relative to TRIGTIME]
     T50: 17.7599999904633 +/- 4.13435942487279
        Measured from: 7.09600013494492
                   to: 24.8560001254082     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 19.9160000085831     
                   to: 20.9160000085831     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.967999994754791     
                   to: 46.6800000071526     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.351091   0.463708   0.557967   0.251355
           0.062316   0.064495   0.054787   0.048097 [error]
 Peak      0.023555   0.034882   0.025958   0.009977
           0.009014   0.009346   0.007903   0.007043 [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 9.09e-08 2.22e-07 4.31e-07 2.07e-06 1.17e-06 2.81e-06   erg/cm2
              Error 2.19e-08 3.16e-08 5.16e-08 5.89e-07 1.36e-07 6.08e-07   erg/cm2
Peak flux Power-law 2.29e-01 2.43e-01 1.83e-01 2.23e-01 7.40e-01 8.78e-01   ph/cm2/s
              Error 1.15e-01 7.64e-02 6.36e-02 1.64e-01 2.16e-01 2.55e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.70e-08 2.24e-07 4.40e-07 1.63e-06 1.16e-06 2.39e-06   erg/cm2
              Error 2.68e-08 3.41e-08 6.17e-08 1.03e-06 1.44e-07 8.22e-07   erg/cm2
Peak flux Cutoff-PL 2.03e-01 2.57e-01 1.93e-01 1.18e-01 7.21e-01 7.71e-01   ph/cm2/s
              Error 1.73e-01 9.14e-02 7.59e-02 2.06e-01 2.30e-01 3.15e-01   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    1.040    0.202    -      -           2.30e-03 2.60e-04   66.940 57
CPL   0.864    0.735     374.3    0.0      2.74e-03 2.45e-03   66.810 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.411    0.504    -      -           6.06e-03 1.74e-03   66.610 57
CPL   0.787    2.628     100.0    0.0      1.23e-02 2.69e-01   66.390 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: 25.920000 sec.
T50 in the 50-300 keV band: 11.712000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   47.648   -0.968   46.680
T90    42.016    0.248   42.264
T50    17.760    7.096   24.856
Peak    1.000   19.916   20.916

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   39.2594 +15.1992 0.0148   28.3   74.6       1.7003    13.1  TRIG_00780845       
------------------------------------------
 
Foreground time interval of the image:
 -0.968  46.680 (delta_t =  47.648 [sec])
Background time interval of the image:
-222.423 -25.804 (delta_t = 196.619 [sec])
-24.624  -0.968 (delta_t =  23.656 [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   -0.968 sec. to   46.680 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.03978     ( -0.206282   0.197559 )
Norm@50keV  : 2.29550E-03    ( -0.000261487   0.00025934 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.94 using 59 PHA bins.
# Reduced chi-squared =          1.174 for     57 degrees of freedom 
# Null hypothesis probability =   1.727567e-01
 
Photon flux (15-150 keV)    in 47.65 sec: 0.264931 ( -0.0311156  0.0312774 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.16657e-06 ( -1.35309e-07  1.35843e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.968 sec. to   46.680 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.864375     ( -0.958357   0.510831 )
Epeak [keV] : 374.327      ( -374.513 -374.513 )
Norm@50keV  : 2.74432E-03    ( -0.000679712   0.00421594 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.81 using 59 PHA bins.
# Reduced chi-squared =          1.193 for     56 degrees of freedom 
# Null hypothesis probability =   1.528778e-01
 
Photon flux (15-150 keV)    in 47.65 sec: 0.262739 ( -0.032877  0.03259 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.15702e-06 ( -1.46352e-07  1.42412e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.968 sec. to   46.680 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.477947   ( 0.798805   0.798805 )
beta        : -1.24388    ( 1.23622   0.382696 )
Epeak [keV] : 138.971      ( -145.02 256.528 )
Norm@50keV   : 4.25933E-03    ( -0.00202427   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.45 using 59 PHA bins.
# Reduced chi-squared =          1.208 for     55 degrees of freedom 
# Null hypothesis probability =   1.386723e-01
 
Photon flux (15-150 keV)    in 47.65 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]    : 21.6175  (-2.98411  3.81859)
R^2/D10^2   : 9.80046E-03  (-0.00399132   0.00615986)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.63 using 59 PHA bins.
# Reduced chi-squared =          1.362 for     57 degrees of freedom 
# Null hypothesis probability =   3.595316e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.071e-08   1.061e-08
25- 50  2.130e-07   4.429e-08
50-150  7.433e-07   1.337e-07
15-150  9.970e-07   1.544e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-24.13      -200)
Norm        : 1.12150       (-0.128302     0.128302)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          85.75 using 59 PHA bins.
# Reduced chi-squared =          1.504 for     57 degrees of freedom 
# Null hypothesis probability =   8.207073e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.330e-07   7.529e-08
25- 50  2.559e-07   1.396e-07
50-150  5.612e-07   3.102e-07
15-150  9.501e-07   5.220e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 14.7349        (-2.72664      3.41255)
R1^2/D10^2  : 2.61944E-02        (-0.0115372      0.0330648)
kT2 [keV]   : 199.363        (-199.363      -199.363)
R2^2/D10^2  : 3.79110E-05    (-1.15683e-05   0.00186356)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.34 using 59 PHA bins.
#Fit statistic : Chi-Squared =          66.82 using 59 PHA bins.
# Reduced chi-squared =          1.261 for     55 degrees of freedom 
# Reduced chi-squared =          1.215 for     55 degrees of freedom 
# Null hypothesis probability =   9.236772e-02
# Null hypothesis probability =   1.319015e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.189e-08   4.479e-08
25- 50  2.024e-07   5.437e-08
50-150  8.041e-07   2.412e-07
15-150  1.098e-06   3.092e-07

Peak spectrum fit

Power-law model
Time interval is from   19.916 sec. to   20.916 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41050     ( -0.504574   0.502771 )
Norm@50keV  : 6.06342E-03    ( -0.00174761   0.00173332 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.61 using 59 PHA bins.
# Reduced chi-squared =          1.169 for     57 degrees of freedom 
# Null hypothesis probability =   1.798935e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.740192 ( -0.215172  0.216444 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.84647e-08 ( -1.82101e-08  1.8611e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   19.916 sec. to   20.916 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.786872     ( -3.68736   1.56944 )
Epeak [keV] : 100.003      ( -99.9882 -99.9882 )
Norm@50keV  : 1.23315E-02    ( -0.0123344   0.524748 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.39 using 59 PHA bins.
# Reduced chi-squared =          1.185 for     56 degrees of freedom 
# Null hypothesis probability =   1.613744e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.721366 ( -0.233571  0.225657 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.61679e-08 ( -1.93016e-08  2.01472e-08 ) ergs/cm2
 
Band function
Time interval is from   19.916 sec. to   20.916 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.833864   ( 0.78296   0.78296 )
beta        : -1.83465    ( 1.95085   3.91101 )
Epeak [keV] : 105.210      ( -94.588 -94.588 )
Norm@50keV   : 1.15579E-02    ( -0.00746723   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.35 using 59 PHA bins.
# Reduced chi-squared =          1.206 for     55 degrees of freedom 
# Null hypothesis probability =   1.404443e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.65701e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.5229  (-4.40773  6.74726)
R^2/D10^2   : 6.30305E-02  (-0.0630305   0.121914)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.69 using 59 PHA bins.
# Reduced chi-squared =          1.188 for     57 degrees of freedom 
# Null hypothesis probability =   1.570950e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.531e-09   2.215e-09
25- 50  1.527e-08   9.225e-09
50-150  2.947e-08   1.891e-08
15-150  4.827e-08   3.051e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-122.834      -199.363)
Norm        : 3.06755       (-0.870182     0.870217)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.71 using 59 PHA bins.
# Reduced chi-squared =          1.170 for     57 degrees of freedom 
# Null hypothesis probability =   1.777176e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.638e-09   4.789e-09
25- 50  1.469e-08   9.050e-09
50-150  3.223e-08   1.956e-08
15-150  5.456e-08   3.288e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.75147        (-3.71991      4.50684)
R1^2/D10^2  : 6.69966        (-6.79133      -6.79133)
kT2 [keV]   : 19.0486        (-5.73173      -19.0293)
R2^2/D10^2  : 3.55175E-02    (-0.0356025   0.093991)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.74 using 59 PHA bins.
# Reduced chi-squared =          1.195 for     55 degrees of freedom 
# Null hypothesis probability =   1.523325e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.958e-09   3.999e-09
25- 50  1.352e-08   7.790e-09
50-150  3.255e-08   2.020e-08
15-150  5.303e-08   3.009e-08
Plot creation:
Sat Oct 21 16:30:34 EDT 2017