batgrbproduct analysis for trigger=770656

batgrbproduct Analysis for Trigger=770656

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Sep  5 15:32:05 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger770656/GCN5_download_cron
======================================================================

  Trigger: 00770656      Segment: 000

  BAT Trigger Time: 526225536   [s; MET]
      Trigger Stop: 526225600   [s; MET]
               UTC: 2017-09-04T13:45:16.366120    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 233.825324999378   Dec: -57.2460218525457  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    17.55
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    17.55

  Flight Position:   [ source = BAT ]
    RA: 233.825324999378   Dec: -57.2460218525457  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 233.839097664741   Dec: -57.2310097825658  [deg; J2000]  
        { 15h 35m 21.4s , -57d 13' 51.6" }
         +/- 1.29001200903874 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.456457454322569 [arcmin] (formal 1-sigma fit error)
    SNR: 21.1410865351292
 
  Angular difference between Flight and Ground position is 1.005621 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.940385   0.991632   0.495733   0.002484
           0.058006   0.054507   0.045214   0.040004 [error]
 Peak      0.940385   0.991632   0.495733   0.002484
           0.058006   0.054507   0.045214   0.040004 [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 2.79e-07 3.81e-07 3.83e-07 6.99e-07 1.27e-06 1.74e-06   erg/cm2
              Error 2.75e-08 2.52e-08 4.24e-08 1.54e-07 9.77e-08 1.99e-07   erg/cm2
Peak flux Power-law 1.42e-01 1.07e-01 5.39e-02 3.88e-02 3.21e-01 3.42e-01   ph/cm2/s
              Error 1.43e-02 7.10e-03 5.75e-03 7.98e-03 2.16e-02 2.27e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.54e-07 4.21e-07 3.63e-07 1.63e-07 1.15e-06 1.20e-06   erg/cm2
              Error 3.15e-08 3.43e-08 5.12e-08 1.38e-07 1.11e-07 1.78e-07   erg/cm2
Peak flux Cutoff-PL 1.28e-01 1.18e-01 5.23e-02 1.19e-02 3.07e-01 3.10e-01   ph/cm2/s
              Error 1.65e-02 9.42e-03 6.79e-03 8.41e-03 2.28e-02 2.44e-02   ph/cm2/s
 
Fluence        Band 2.51e-07 4.20e-07 3.61e-07 2.14e-07 1.15e-06 1.25e-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    1.990    0.125    -      -           2.15e-03 1.73e-04   70.130 57
CPL   1.030    0.599      42.1    8.0      7.61e-03 6.96e-03   60.700 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.990    0.125    -      -           2.15e-03 1.73e-04   70.130 57
CPL   1.030    0.599      42.1    8.0      7.61e-03 6.96e-03   60.700 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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  233.8391 -57.2310 0.0090   13.6 -146.9       2.4203    21.1  TRIG_00770656       
------------------------------------------
 
Foreground time interval of the image:
  0.000  64.000 (delta_t =  64.000 [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   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.99046     ( -0.123348   0.126657 )
Norm@50keV  : 2.15025E-03    ( -0.000173627   0.00017163 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.13 using 59 PHA bins.
# Reduced chi-squared =          1.230 for     57 degrees of freedom 
# Null hypothesis probability =   1.136175e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.321131 ( -0.0215688  0.0215882 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.26847e-06 ( -9.70362e-08  9.82822e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.03030     ( -0.640079   0.558083 )
Epeak [keV] : 42.0880      ( -7.18186 8.78931 )
Norm@50keV  : 7.61002E-03    ( -0.00391037   0.0100136 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.70 using 59 PHA bins.
# Reduced chi-squared =          1.084 for     56 degrees of freedom 
# Null hypothesis probability =   3.104298e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.307042 ( -0.022806  0.022858 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.15027e-06 ( -1.0761e-07  1.1376e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.993315   ( -0.364524   1.27124 )
beta        : -3.75038    ( 8.87747   18.8775 )
Epeak [keV] : 41.9792      ( -6.19816 8.78735 )
Norm@50keV   : 7.99382E-03    ( -0.00272751   128.591 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.66 using 59 PHA bins.
# Reduced chi-squared =          1.103 for     55 degrees of freedom 
# Null hypothesis probability =   2.791177e-01
 
Photon flux (15-150 keV)    in 64 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.15081e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.3153  (-0.784509  0.852951)
R^2/D10^2   : 0.131091  (-0.0348122   0.0472876)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          91.13 using 59 PHA bins.
# Reduced chi-squared =          1.599 for     57 degrees of freedom 
# Null hypothesis probability =   2.744433e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.836e-07   2.035e-08
25- 50  4.767e-07   3.808e-08
50-150  2.720e-07   4.854e-08
15-150  9.323e-07   7.808e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 65.8894       (-12.3724      16.7359)
Norm        : 1.61282       (-0.175179     0.200794)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.32 using 59 PHA bins.
# Reduced chi-squared =          1.076 for     57 degrees of freedom 
# Null hypothesis probability =   3.239720e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.630e-07   2.304e-08
25- 50  4.114e-07   2.922e-08
50-150  5.047e-07   8.928e-08
15-150  1.179e-06   9.184e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.46121        (-1.17705      1.3829)
R1^2/D10^2  : 0.907436        (-0.484105      1.34996)
kT2 [keV]   : 16.0285        (-2.68747      4.49588)
R2^2/D10^2  : 1.76048E-02    (-0.0116753   0.0219629)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.94 using 59 PHA bins.
# Reduced chi-squared =          1.072 for     55 degrees of freedom 
# Null hypothesis probability =   3.336308e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.583e-07   1.032e-07
25- 50  4.123e-07   1.321e-07
50-150  4.629e-07   2.176e-07
15-150  1.133e-06   3.873e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.99046     ( -0.123348   0.126657 )
Norm@50keV  : 2.15025E-03    ( -0.000173627   0.00017163 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.13 using 59 PHA bins.
# Reduced chi-squared =          1.230 for     57 degrees of freedom 
# Null hypothesis probability =   1.136175e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.321131 ( -0.0215688  0.0215882 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.26847e-06 ( -9.70362e-08  9.82822e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.03030     ( -0.640079   0.558083 )
Epeak [keV] : 42.0880      ( -7.18186 8.78931 )
Norm@50keV  : 7.61002E-03    ( -0.00391037   0.0100136 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.70 using 59 PHA bins.
# Reduced chi-squared =          1.084 for     56 degrees of freedom 
# Null hypothesis probability =   3.104298e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.307042 ( -0.022806  0.022858 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.15027e-06 ( -1.0761e-07  1.1376e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.993315   ( -0.364524   1.27124 )
beta        : -3.75038    ( 8.87747   18.8775 )
Epeak [keV] : 41.9792      ( -6.19816 8.78735 )
Norm@50keV   : 7.99382E-03    ( -0.00272751   126.781 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.66 using 59 PHA bins.
# Reduced chi-squared =          1.103 for     55 degrees of freedom 
# Null hypothesis probability =   2.791177e-01
 
Photon flux (15-150 keV)    in 64 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.15081e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.3153  (-0.784509  0.852951)
R^2/D10^2   : 0.131091  (-0.0348122   0.0472876)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          91.13 using 59 PHA bins.
# Reduced chi-squared =          1.599 for     57 degrees of freedom 
# Null hypothesis probability =   2.744433e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.836e-07   2.179e-08
25- 50  4.767e-07   3.731e-08
50-150  2.720e-07   4.733e-08
15-150  9.323e-07   7.776e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 65.8894       (-12.3724      16.7359)
Norm        : 1.61282       (-0.175179     0.200794)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.32 using 59 PHA bins.
# Reduced chi-squared =          1.076 for     57 degrees of freedom 
# Null hypothesis probability =   3.239720e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.630e-07   2.653e-08
25- 50  4.114e-07   2.922e-08
50-150  5.047e-07   8.445e-08
15-150  1.179e-06   1.066e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.46121        (-1.17705      1.3829)
R1^2/D10^2  : 0.907436        (-0.484105      1.34996)
kT2 [keV]   : 16.0285        (-2.68747      4.49588)
R2^2/D10^2  : 1.76048E-02    (-0.0116753   0.0219629)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.94 using 59 PHA bins.
# Reduced chi-squared =          1.072 for     55 degrees of freedom 
# Null hypothesis probability =   3.336308e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.583e-07   9.165e-08
25- 50  4.123e-07   1.181e-07
50-150  4.629e-07   2.268e-07
15-150  1.133e-06   4.191e-07
Plot creation:
Tue Sep  5 16:01:04 EDT 2017