batgrbproduct analysis for trigger=785510

batgrbproduct Analysis for Trigger=785510

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Nov  3 17:27:46 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger785510/GCN5_download_cron
======================================================================

  Trigger: 00785510      Segment: 000

  BAT Trigger Time: 531328849.536   [s; MET]
      Trigger Stop: 531328857.728   [s; MET]
               UTC: 2017-11-02T15:20:29.598440    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 288.103089791342   Dec: 22.4378985024187  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.05
     Image Trigger?:     NO
     Rate S/N Ratio:     9.32737905308882  [ if not an image trigger ]
     Image S/N Ratio:    7.05

  Flight Position:   [ source = BAT ]
    RA: 288.103089791342   Dec: 22.4378985024187  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 288.095656067962   Dec: 22.4342141875967  [deg; J2000]  
        { 19h 12m 23.0s , +22d 26' 03.2" }
         +/- 2.10618011505039 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.15783977617666 [arcmin] (formal 1-sigma fit error)
    SNR: 10.4949878403662
 
  Angular difference between Flight and Ground position is 0.467790 arcmin
 
  Partial Coding Fraction: 0.2226562    [ including projection effects ]

  Duration
     T90: 17.7519999742508 +/- 3.14248560269926
        Measured from: -5.04799991846085
                   to: 12.7040000557899     [s; relative to TRIGTIME]
     T50: 9.45599991083145 +/- 3.62186304154062
        Measured from: -1.22799986600876
                   to: 8.22800004482269     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.50800001621246     
                   to: 4.50800001621246     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6.18400001525879     
                   to: 13.7159999608994     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.233256   0.395492   0.468571   0.085780
           0.063593   0.063546   0.055765   0.050322 [error]
 Peak      0.027825   0.054346   0.048486   0.029463
           0.015221   0.014895   0.013593   0.012541 [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 8.41e-08 1.91e-07 3.42e-07 1.45e-06 9.32e-07 2.07e-06   erg/cm2
              Error 2.39e-08 3.27e-08 5.34e-08 5.15e-07 1.38e-07 5.41e-07   erg/cm2
Peak flux Power-law 3.81e-01 3.90e-01 2.81e-01 3.23e-01 1.18e+00 1.37e+00   ph/cm2/s
              Error 2.11e-01 1.33e-01 1.08e-01 2.68e-01 3.76e-01 4.27e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.59e-08 2.02e-07 3.73e-07 4.92e-07 8.82e-07 1.13e-06   erg/cm2
              Error 3.02e-08 3.81e-08 6.57e-08 7.48e-07 1.53e-07 7.49e-07   erg/cm2
Peak flux Cutoff-PL 3.46e-01 4.04e-01 2.92e-01 1.95e-01 1.15e+00 1.24e+00   ph/cm2/s
              Error 2.53e-01 1.51e-01 1.22e-01 3.23e-01 4.02e-01 5.16e-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    1.157    0.244    -      -           4.56e-03 6.47e-04   67.690 57
CPL   0.170    1.285     104.1  -35.6      1.26e-02 2.73e-02   65.370 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.474    0.570    -      -           9.50e-03 2.97e-03   46.880 57
CPL   0.999    2.318     108.5    0.0      1.62e-02 0.00e+00   46.730 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: 18.432000 sec.
T50 in the 50-300 keV band: 8.064000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   19.900   -6.184   13.716
T90    17.752   -5.048   12.704
T50     9.456   -1.228    8.228
Peak    1.000    3.508    4.508

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  288.0957 +22.4342 0.0183   37.0   59.3       1.3387    10.5  TRIG_00785510       
------------------------------------------
 
Foreground time interval of the image:
 -6.184  13.716 (delta_t =  19.900 [sec])
Background time interval of the image:
-182.235 -93.916 (delta_t =  88.319 [sec])
-92.536  -6.184 (delta_t =  86.352 [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   -6.184 sec. to   13.716 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.15708     ( -0.249102   0.239614 )
Norm@50keV  : 4.55805E-03    ( -0.000647823   0.000645532 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.69 using 59 PHA bins.
# Reduced chi-squared =          1.188 for     57 degrees of freedom 
# Null hypothesis probability =   1.571277e-01
 
Photon flux (15-150 keV)    in 19.9 sec: 0.532018 ( -0.0791878  0.0798001 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.31782e-07 ( -1.37683e-07  1.38564e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -6.184 sec. to   13.716 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.169940     ( -1.50684   1.06351 )
Epeak [keV] : 104.065      ( -32.7639 -104.064 )
Norm@50keV  : 1.26393E-02    ( -0.0126394   0.0419661 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.37 using 59 PHA bins.
# Reduced chi-squared =          1.167 for     56 degrees of freedom 
# Null hypothesis probability =   1.834058e-01
 
Photon flux (15-150 keV)    in 19.9 sec: 0.505996 ( -0.085336  0.08517 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.81898e-07 ( -1.53487e-07  1.51919e-07 ) ergs/cm2
 
Band function
Time interval is from   -6.184 sec. to   13.716 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.70847E-02   ( -0.179666   3.37109 )
beta        : -1.97771    ( 1.69166   1.94492 )
Epeak [keV] : 97.2793      ( -81.1659 110.474 )
Norm@50keV   : 1.36288E-02    ( -0.0175382   44.3449 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.38 using 59 PHA bins.
# Reduced chi-squared =          1.189 for     55 degrees of freedom 
# Null hypothesis probability =   1.596546e-01
 
Photon flux (15-150 keV)    in 19.9 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]    : 19.5496  (-2.99457  3.85429)
R^2/D10^2   : 2.70307E-02  (-0.0122111   0.0204001)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.37 using 59 PHA bins.
# Reduced chi-squared =          1.200 for     57 degrees of freedom 
# Null hypothesis probability =   1.438635e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.998e-08   1.238e-08
25- 50  1.961e-07   4.787e-08
50-150  5.538e-07   1.540e-07
15-150  7.899e-07   1.532e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-41.8051      -200)
Norm        : 2.26228       (-0.324514     0.324514)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.23 using 59 PHA bins.
# Reduced chi-squared =          1.302 for     57 degrees of freedom 
# Null hypothesis probability =   6.229351e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.122e-07   6.288e-08
25- 50  2.158e-07   1.216e-07
50-150  4.733e-07   2.627e-07
15-150  8.012e-07   4.472e-07
Double BB
R1^2/D10^2  : 4.88389E-05        (-2.98778e-05      0.0267397)
kT2 [keV]   : 15.6989        (-15.6985      4.8131)
R2^2/D10^2  : 4.74474E-02    (-0.025706   12.6992)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.73 using 59 PHA bins.
#Fit statistic : Chi-Squared =          65.61 using 59 PHA bins.
#Fit statistic : Chi-Squared =          65.54 using 59 PHA bins.
# Reduced chi-squared =          1.195 for     55 degrees of freedom 
# Reduced chi-squared =          1.193 for     55 degrees of freedom 
# Reduced chi-squared =          1.192 for     55 degrees of freedom 
# Null hypothesis probability =   1.525221e-01
# Null hypothesis probability =   1.549346e-01
# Null hypothesis probability =   1.562519e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.121e-08   3.540e-08
25- 50  1.903e-07   9.053e-08
50-150  5.899e-07   2.449e-07
15-150  8.514e-07   3.835e-07

Peak spectrum fit

Power-law model
Time interval is from    3.508 sec. to    4.508 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.47414     ( -0.570058   0.569499 )
Norm@50keV  : 9.50067E-03    ( -0.00298579   0.00294984 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.88 using 59 PHA bins.
# Reduced chi-squared =         0.8224 for     57 degrees of freedom 
# Null hypothesis probability =   8.282711e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.17801 ( -0.373967  0.377368 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.05223e-08 ( -3.02982e-08  3.11615e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    3.508 sec. to    4.508 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.999402     ( -3.49284   1.14254 )
Epeak [keV] : 108.540      ( -108.246 -108.246 )
Norm@50keV  : 1.62313E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.73 using 59 PHA bins.
# Reduced chi-squared =         0.8345 for     56 degrees of freedom 
# Null hypothesis probability =   8.066094e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.14833 ( -0.407172  0.39622 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.74748e-08 ( -3.27167e-08  3.33592e-08 ) ergs/cm2
 
Band function
Time interval is from    3.508 sec. to    4.508 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.10367   ( 1.1041   1.50704 )
beta        : -2.43402    ( 2.1795   9.60108 )
Epeak [keV] : 130.641      ( -130.134 -130.134 )
Norm@50keV   : 1.42352E-02    ( -0.00735141   0.0211312 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.74 using 59 PHA bins.
# Reduced chi-squared =         0.8499 for     55 degrees of freedom 
# Null hypothesis probability =   7.782194e-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]    : 16.3295  (-5.1923  8.68214)
R^2/D10^2   : 9.87905E-02  (-0.0987905   0.284137)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.39 using 59 PHA bins.
# Reduced chi-squared =         0.8490 for     57 degrees of freedom 
# Null hypothesis probability =   7.844911e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.421e-09   3.568e-09
25- 50  2.321e-08   1.373e-08
50-150  4.359e-08   2.917e-08
15-150  7.222e-08   4.596e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-199.363      -199.363)
Norm        : 4.84728       (-1.48655     1.89223)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.83 using 59 PHA bins.
# Reduced chi-squared =         0.8216 for     57 degrees of freedom 
# Null hypothesis probability =   8.295395e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.207e-08   7.570e-09
25- 50  2.322e-08   1.424e-08
50-150  5.092e-08   3.087e-08
15-150  8.621e-08   5.300e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.39116        (-4.39116      94.1427)
R1^2/D10^2  : 6.14832        (-6.14832      -6.14832)
kT2 [keV]   : 20.2558        (-7.46852      -20.2558)
R2^2/D10^2  : 4.25158E-02    (-0.0425158   0.182928)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.30 using 59 PHA bins.
# Reduced chi-squared =         0.8418 for     55 degrees of freedom 
# Null hypothesis probability =   7.919454e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.198e-08   7.345e-09
25- 50  2.084e-08   1.101e-08
50-150  5.129e-08   3.129e-08
15-150  8.410e-08   4.608e-08
Plot creation:
Fri Nov  3 17:56:00 EDT 2017