batgrbproduct analysis for trigger=778154

batgrbproduct Analysis for Trigger=778154

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Oct 12 19:09:29 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger778154/GCN5_download_cron
======================================================================

  Trigger: 00778154      Segment: 000

  BAT Trigger Time: 529439587.008   [s; MET]
      Trigger Stop: 529439587.264   [s; MET]
               UTC: 2017-10-11T18:32:47.183100    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 236.760536734419   Dec: -10.0707462179219  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    14.59
     Image Trigger?:     NO
     Rate S/N Ratio:     40.8656334834051  [ if not an image trigger ]
     Image S/N Ratio:    14.59

  Flight Position:   [ source = BAT ]
    RA: 236.760536734419   Dec: -10.0707462179219  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 236.76465222834   Dec: -10.066836458908  [deg; J2000]  
        { 15h 47m 03.5s , -10d 04' 00.6" }
         +/- 0.958487189262815 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.257632364694634 [arcmin] (formal 1-sigma fit error)
    SNR: 32.3164500489902
 
  Angular difference between Flight and Ground position is 0.337847 arcmin
 
  Partial Coding Fraction: 0.6328125    [ including projection effects ]

  Duration
     T90: 2.66799998283386 +/- 0.463396136818244
        Measured from: 0.0720000863075256
                   to: 2.74000006914139     [s; relative to TRIGTIME]
     T50: 1.21599996089935 +/- 0.108811769854415
        Measured from: 0.480000078678131
                   to: 1.69600003957748     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.0759999752044678     
                   to: 1.07599997520447     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.0600000023841858     
                   to: 3.58799999952316     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.615252   0.723196   0.476380   0.112628
           0.025450   0.028497   0.025155   0.026480 [error]
 Peak      0.233525   0.318374   0.237744   0.079559
           0.014166   0.016324   0.014693   0.014343 [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 1.84e-07 3.02e-07 3.76e-07 9.29e-07 1.12e-06 1.79e-06   erg/cm2
              Error 1.44e-08 1.42e-08 2.57e-08 1.36e-07 5.94e-08 1.56e-07   erg/cm2
Peak flux Power-law 2.25e+00 2.30e+00 1.66e+00 1.91e+00 6.96e+00 8.12e+00   ph/cm2/s
              Error 2.20e-01 1.37e-01 1.24e-01 2.93e-01 3.96e-01 4.73e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.79e-07 3.07e-07 3.78e-07 6.82e-07 1.10e-06 1.55e-06   erg/cm2
              Error 1.71e-08 1.75e-08 2.64e-08 2.85e-07 7.06e-08 2.56e-07   erg/cm2
Peak flux Cutoff-PL 2.17e+00 2.36e+00 1.68e+00 1.42e+00 6.89e+00 7.63e+00   ph/cm2/s
              Error 2.57e-01 1.64e-01 1.33e-01 4.49e-01 4.14e-01 7.71e-01   ph/cm2/s
 
Fluence        Band 1.74e-07 3.10e-07 3.71e-07 8.27e-07 1.10e-06 1.69e-06   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    1.683    0.088    -      -           3.32e-02 1.65e-03   43.500 57
CPL   1.501    0.309     129.9    0.0      4.13e-02 0.00e+00   42.680 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.475    0.101    -      -           5.61e-02 3.28e-03   48.900 57
CPL   1.247    0.347     160.4  -42.9      7.37e-02 3.31e-02   47.870 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: 1.664000 sec.
T50 in the 50-300 keV band: 0.960000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    3.648   -0.060    3.588
T90     2.668    0.072    2.740
T50     1.216    0.480    1.696
Peak    1.000    0.076    1.076

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  236.7647 -10.0668 0.0060   22.0  -79.6       1.9795    32.3  TRIG_00778154       
------------------------------------------
 
Foreground time interval of the image:
 -0.060   3.588 (delta_t =   3.648 [sec])
Background time interval of the image:
-59.707  -0.060 (delta_t =  59.647 [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   -0.060 sec. to    3.588 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.68291     ( -0.0875847   0.0885444 )
Norm@50keV  : 3.31883E-02    ( -0.00165131   0.00164117 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.50 using 59 PHA bins.
# Reduced chi-squared =         0.7632 for     57 degrees of freedom 
# Null hypothesis probability =   9.060317e-01
 
Photon flux (15-150 keV)    in 3.648 sec: 4.38179 ( -0.206423  0.206678 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.12256e-06 ( -5.92333e-08  5.96641e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.060 sec. to    3.588 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50064     ( -0.365248   0.252153 )
Epeak [keV] : 129.901      (   )
Norm@50keV  : 4.13306E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.68 using 59 PHA bins.
# Reduced chi-squared =         0.7621 for     56 degrees of freedom 
# Null hypothesis probability =   9.051062e-01
 
Photon flux (15-150 keV)    in 3.648 sec: 4.33322 ( -0.22442  0.22418 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.10213e-06 ( -7.07603e-08  7.04757e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.060 sec. to    3.588 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.749536   ( -0.0914717   -0.0914717 )
beta        : -1.72496    ( 1.72213   0.104086 )
Epeak [keV] : 27.3239      ( -29.4193 85.4995 )
Norm@50keV   : 2.29379    ( -2.2938   3441.5 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.00 using 59 PHA bins.
# Reduced chi-squared =         0.7636 for     55 degrees of freedom 
# Null hypothesis probability =   9.012172e-01
 
Photon flux (15-150 keV)    in 3.648 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.10255e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.8820  (  )
R^2/D10^2   : 0.800744  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         143.09 using 59 PHA bins.
# Reduced chi-squared =         2.5104 for     57 degrees of freedom 
# Null hypothesis probability =   2.373744e-09
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.028e-07   9.831e-09
25- 50  3.506e-07   1.932e-08
50-150  3.659e-07   3.562e-08
15-150  8.193e-07   4.779e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 144.020       (-31.4608      39.7338)
Norm        : 17.9046       (-0.977841     1.22663)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.79 using 59 PHA bins.
# Reduced chi-squared =         0.7682 for     57 degrees of freedom 
# Null hypothesis probability =   9.005486e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.683e-07   1.279e-08
25- 50  3.101e-07   2.681e-08
50-150  6.017e-07   1.808e-07
15-150  1.080e-06   2.030e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.49136        (-1.16339      1.3075)
R1^2/D10^2  : 6.37253        (-2.88514      6.62309)
kT2 [keV]   : 23.7075        (-4.00522      6.82517)
R2^2/D10^2  : 6.83948E-02    (-0.0408635   0.0704095)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.86 using 59 PHA bins.
# Reduced chi-squared =         0.8702 for     55 degrees of freedom 
# Null hypothesis probability =   7.416745e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.696e-07   3.267e-08
25- 50  3.084e-07   4.372e-08
50-150  6.003e-07   1.211e-07
15-150  1.078e-06   1.709e-07

Peak spectrum fit

Power-law model
Time interval is from    0.076 sec. to    1.076 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.47498     ( -0.100377   0.101042 )
Norm@50keV  : 5.61175E-02    ( -0.00329114   0.0032772 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.90 using 59 PHA bins.
# Reduced chi-squared =         0.8579 for     57 degrees of freedom 
# Null hypothesis probability =   7.686745e-01
 
Photon flux (15-150 keV)    in 1 sec: 6.95960 ( -0.396156  0.396371 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.34608e-07 ( -3.49408e-08  3.52053e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.076 sec. to    1.076 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.24683     ( -0.415586   0.278334 )
Epeak [keV] : 160.355      ( -74.5729 -160.356 )
Norm@50keV  : 7.37068E-02    ( -0.0200137   0.0460939 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.87 using 59 PHA bins.
# Reduced chi-squared =         0.8548 for     56 degrees of freedom 
# Null hypothesis probability =   7.718380e-01
 
Photon flux (15-150 keV)    in 1 sec: 6.88570 ( -0.41461  0.41405 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.23515e-07 ( -4.0011e-08  3.9814e-08 ) ergs/cm2
 
Band function
Time interval is from    0.076 sec. to    1.076 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 3.35287   ( -11.9962   -4.11241 )
beta        : -1.57395    ( -0.138354   0.125554 )
Epeak [keV] : 27.4684      ( -5.16055 3.60179 )
Norm@50keV   : 227.122    ( -227.057   1415.82 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.44 using 59 PHA bins.
# Reduced chi-squared =         0.8081 for     55 degrees of freedom 
# Null hypothesis probability =   8.448156e-01
 
Photon flux (15-150 keV)    in 1 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]    : 14.2479  (  )
R^2/D10^2   : 0.938364  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         115.91 using 59 PHA bins.
# Reduced chi-squared =         2.0336 for     57 degrees of freedom 
# Null hypothesis probability =   6.675919e-06
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.017e-08   4.435e-09
25- 50  1.520e-07   1.115e-08
50-150  2.050e-07   2.470e-08
15-150  3.971e-07   2.845e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-32.663      -200)
Norm        : 28.3944       (-1.59848     1.59848)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.21 using 59 PHA bins.
# Reduced chi-squared =         0.8634 for     57 degrees of freedom 
# Null hypothesis probability =   7.587157e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.089e-08   4.435e-09
25- 50  1.364e-07   9.300e-09
50-150  2.991e-07   6.725e-08
15-150  5.063e-07   7.265e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.59198        (-1.40451      1.56632)
R1^2/D10^2  : 5.63902        (-2.44211      5.2653)
kT2 [keV]   : 29.5171        (-6.3495      13.2033)
R2^2/D10^2  : 5.82408E-02    (-0.0401746   0.0794756)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.03 using 59 PHA bins.
# Reduced chi-squared =         0.8551 for     55 degrees of freedom 
# Null hypothesis probability =   7.689760e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.439e-08   1.138e-08
25- 50  1.390e-07   2.443e-08
50-150  3.240e-07   1.105e-07
15-150  5.274e-07   1.477e-07
Plot creation:
Thu Oct 12 19:13:47 EDT 2017