batgrbproduct analysis for trigger=770502

batgrbproduct Analysis for Trigger=770502

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Sep  4 08:24:31 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger770502/GCN5_download_cron
======================================================================

  Trigger: 00770502      Segment: 000

  BAT Trigger Time: 526122008   [s; MET]
      Trigger Stop: 526122112   [s; MET]
               UTC: 2017-09-03T08:59:48.372260    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 233.806075212174   Dec: -57.2442016660091  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    10.8
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    10.8

  Flight Position:   [ source = BAT ]
    RA: 233.806075212174   Dec: -57.2442016660091  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 233.797783526371   Dec: -57.2468129573439  [deg; J2000]  
        { 15h 35m 11.5s , -57d 14' 48.5" }
         +/- 2.09494963076878 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.803841860706704 [arcmin] (formal 1-sigma fit error)
    SNR: 10.5754528173969
 
  Angular difference between Flight and Ground position is 0.311447 arcmin
 
  Partial Coding Fraction: 0.9921875    [ including projection effects ]

  Duration
     T90: 104 +/- 
        Measured from: 0
                   to: 104     [s; relative to TRIGTIME]
     T50: 104 +/- 
        Measured from: 0
                   to: 104     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 104 second)
        Measured from: 0     
                   to: 104     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 104     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.573802   0.576407   0.390423   0.025866
           0.066338   0.065321   0.055967   0.050592 [error]
 Peak      0.573802   0.576407   0.390423   0.025866
           0.066338   0.065321   0.055967   0.050592 [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 1.60e-07 2.39e-07 2.66e-07 5.61e-07 8.35e-07 1.23e-06   erg/cm2
              Error 2.75e-08 2.82e-08 5.23e-08 2.21e-07 1.21e-07 2.75e-07   erg/cm2
Peak flux Power-law 5.00e-02 4.11e-02 2.29e-02 1.88e-02 1.22e-01 1.33e-01   ph/cm2/s
              Error 8.75e-03 4.85e-03 4.34e-03 6.89e-03 1.45e-02 1.60e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.49e-07 2.61e-07 2.62e-07 1.75e-07 7.76e-07 8.47e-07   erg/cm2
              Error 3.14e-08 3.82e-08 5.89e-08 2.89e-07 1.33e-07 3.45e-07   erg/cm2
Peak flux Cutoff-PL 4.60e-02 4.46e-02 2.29e-02 7.45e-03 1.19e-01 1.21e-01   ph/cm2/s
              Error 1.01e-02 6.41e-03 4.87e-03 1.09e-02 1.50e-02 1.79e-02   ph/cm2/s
 
Fluence        Band 1.47e-07 2.60e-07 2.62e-07 1.87e-07 7.77e-07 8.61e-07   erg/cm2
              Error 3.07e-08 -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 4.64e-02 4.42e-02 2.32e-02 8.51e-03 1.19e-01 1.22e-01   ph/cm2/s
              Error 1.01e-02 -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.843    0.219    -      -           8.73e-04 1.25e-04   56.730 57
CPL   1.101    0.949      52.2  -18.2      2.29e-03 4.46e-03   54.570 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.843    0.219    -      -           8.73e-04 1.25e-04   56.730 57
CPL   1.101    0.949      52.2  -18.2      2.29e-03 4.46e-03   54.570 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  104.000    0.000  104.000
T90   104.000    0.000  104.000
T50   104.000    0.000  104.000
Peak  104.000    0.000  104.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  233.7978 -57.2468 0.0181    9.8   34.9       1.5380    10.6  TRIG_00770502       
------------------------------------------
 
Foreground time interval of the image:
  0.000 104.000 (delta_t = 104.000 [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
Time interval is from    0.000 sec. to  104.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84328     ( -0.213655   0.22458 )
Norm@50keV  : 8.73488E-04    ( -0.000126353   0.000123446 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.73 using 59 PHA bins.
# Reduced chi-squared =         0.9952 for     57 degrees of freedom 
# Null hypothesis probability =   4.852729e-01
 
Photon flux (15-150 keV)    in 104 sec: 0.122444 ( -0.0144604  0.0144633 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.35365e-07 ( -1.19339e-07  1.225e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  104.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.10101     ( -1.05769   0.839924 )
Epeak [keV] : 52.2454      ( -15.922 -52.2459 )
Norm@50keV  : 2.28925E-03    ( -0.0022892   0.00662457 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.57 using 59 PHA bins.
# Reduced chi-squared =         0.9746 for     56 degrees of freedom 
# Null hypothesis probability =   5.289543e-01
 
Photon flux (15-150 keV)    in 104 sec: 0.118823 ( -0.014996  0.015018 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.75847e-07 ( -1.2803e-07  1.38363e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  104.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.10131   ( -0.743604   1.14524 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 52.2333      ( -15.8981 -52.2333 )
Norm@50keV   : 2.28836E-03    ( -0.00228836   0.00663048 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.57 using 59 PHA bins.
# Reduced chi-squared =         0.9923 for     55 degrees of freedom 
# Null hypothesis probability =   4.908137e-01
 
Photon flux (15-150 keV)    in 104 sec: 0.119412 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.76629e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.4144  (-1.54545  1.78295)
R^2/D10^2   : 3.53835E-02  (-0.0147342   0.025414)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.69 using 59 PHA bins.
# Reduced chi-squared =          1.170 for     57 degrees of freedom 
# Null hypothesis probability =   1.782360e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.008e-07   2.294e-08
25- 50  2.987e-07   4.857e-08
50-150  2.260e-07   6.484e-08
15-150  6.255e-07   1.026e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 86.3659       (-28.6698      58.6366)
Norm        : 0.563529       (-0.0901803     0.113716)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.73 using 59 PHA bins.
# Reduced chi-squared =         0.9602 for     57 degrees of freedom 
# Null hypothesis probability =   5.607728e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.527e-07   2.720e-08
25- 50  2.559e-07   3.489e-08
50-150  3.798e-07   1.910e-07
15-150  7.884e-07   2.177e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.29662        (-1.47201      2.14687)
R1^2/D10^2  : 0.810917        (-0.642245      5.22029)
kT2 [keV]   : 15.6643        (-3.06803      5.21757)
R2^2/D10^2  : 9.13257E-03    (-0.00634434   0.0126133)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.88 using 59 PHA bins.
# Reduced chi-squared =         0.9614 for     55 degrees of freedom 
# Null hypothesis probability =   5.561981e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.557e-07   8.146e-08
25- 50  2.473e-07   1.201e-07
50-150  3.410e-07   1.974e-07
15-150  7.440e-07   3.296e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to  104.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84328     ( -0.213655   0.22458 )
Norm@50keV  : 8.73488E-04    ( -0.000126353   0.000123446 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.73 using 59 PHA bins.
# Reduced chi-squared =         0.9952 for     57 degrees of freedom 
# Null hypothesis probability =   4.852729e-01
 
Photon flux (15-150 keV)    in 104 sec: 0.122444 ( -0.0144604  0.0144633 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.35365e-07 ( -1.19339e-07  1.225e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to  104.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.10101     ( -1.05769   0.839924 )
Epeak [keV] : 52.2454      ( -15.922 -52.2459 )
Norm@50keV  : 2.28925E-03    ( -0.0022892   0.00662457 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.57 using 59 PHA bins.
# Reduced chi-squared =         0.9746 for     56 degrees of freedom 
# Null hypothesis probability =   5.289543e-01
 
Photon flux (15-150 keV)    in 104 sec: 0.118823 ( -0.014996  0.015018 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.75847e-07 ( -1.2803e-07  1.38363e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to  104.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.10131   ( -0.743604   1.14528 )
beta        : -10.0000    ( 10   1.77636e-15 )
Epeak [keV] : 52.2333      ( -15.8981 -52.2333 )
Norm@50keV   : 2.28836E-03    ( -0.00228836   0.00663048 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.57 using 59 PHA bins.
# Reduced chi-squared =         0.9923 for     55 degrees of freedom 
# Null hypothesis probability =   4.908137e-01
 
Photon flux (15-150 keV)    in 104 sec: 0.119412 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.76629e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.4144  (-1.54545  1.78295)
R^2/D10^2   : 3.53835E-02  (-0.0147342   0.025414)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.69 using 59 PHA bins.
# Reduced chi-squared =          1.170 for     57 degrees of freedom 
# Null hypothesis probability =   1.782360e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.008e-07   2.247e-08
25- 50  2.987e-07   5.247e-08
50-150  2.260e-07   6.568e-08
15-150  6.255e-07   1.065e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 86.3659       (-28.6698      58.6366)
Norm        : 0.563529       (-0.0901803     0.113716)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.73 using 59 PHA bins.
# Reduced chi-squared =         0.9602 for     57 degrees of freedom 
# Null hypothesis probability =   5.607728e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.527e-07   2.844e-08
25- 50  2.559e-07   3.713e-08
50-150  3.798e-07   1.896e-07
15-150  7.884e-07   2.149e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.29662        (-1.47201      2.14687)
R1^2/D10^2  : 0.810917        (-0.642245      5.22029)
kT2 [keV]   : 15.6643        (-3.06803      5.21757)
R2^2/D10^2  : 9.13257E-03    (-0.00634434   0.0126133)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.88 using 59 PHA bins.
# Reduced chi-squared =         0.9614 for     55 degrees of freedom 
# Null hypothesis probability =   5.561981e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.557e-07   7.738e-08
25- 50  2.473e-07   1.250e-07
50-150  3.410e-07   1.981e-07
15-150  7.440e-07   3.602e-07
Plot creation:
Mon Sep  4 08:47:58 EDT 2017