batgrbproduct Analysis for Trigger=650530

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jul 28 18:31:38 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger650530/GCN5_download_cron
======================================================================

  Trigger: 00650530      Segment: 000

  BAT Trigger Time: 459716537.344   [s; MET]
      Trigger Stop: 459716538.368   [s; MET]
               UTC: 2015-07-27T19:02:02.432140    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 203.990397249456   Dec: -18.354840842608  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.59
     Image Trigger?:     NO
     Rate S/N Ratio:     14.8996644257513  [ if not an image trigger ]
     Image S/N Ratio:    7.59

  Flight Position:   [ source = BAT ]
    RA: 203.990397249456   Dec: -18.354840842608  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 203.968094734136   Dec: -18.3197945039191  [deg; J2000]  
        { 13h 35m 52.3s , -18d 19' 11.3" }
         +/- 1.01838010223331 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.321387704083927 [arcmin] (formal 1-sigma fit error)
    SNR: 29.6359269361862
 
  Angular difference between Flight and Ground position is 2.456643 arcmin
 
  Partial Coding Fraction: 0.6875    [ including projection effects ]

  Duration
     T90: 87.9279999732971 +/- 13.4143261252964
        Measured from: -4.51999986171722
                   to: 83.4080001115799     [s; relative to TRIGTIME]
     T50: 30.0279999375343 +/- 3.28946743339743
        Measured from: 5.33200013637543
                   to: 35.3600000739098     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 9.21200001239777     
                   to: 10.2120000123978     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -8.69599997997284     
                   to: 95.944000005722     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.022980   1.802509   1.843955   0.458313
           0.064374   0.066575   0.062830   0.062618 [error]
 Peak      0.024499   0.047342   0.053781   0.018986
           0.007109   0.007588   0.007210   0.006885 [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 3.25e-07 7.46e-07 1.36e-06 5.85e-06 3.69e-06 8.28e-06   erg/cm2
              Error 2.70e-08 3.58e-08 6.30e-08 6.42e-07 1.61e-07 6.72e-07   erg/cm2
Peak flux Power-law 2.27e-01 3.11e-01 3.15e-01 5.79e-01 1.04e+00 1.43e+00   ph/cm2/s
              Error 8.23e-02 6.74e-02 5.64e-02 2.37e-01 1.78e-01 2.64e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.97e-07 7.61e-07 1.40e-06 3.66e-06 3.60e-06 6.12e-06   erg/cm2
              Error 3.49e-08 3.88e-08 7.32e-08 1.40e-06 1.77e-07 1.39e-06   erg/cm2
Peak flux Cutoff-PL 2.22e-01 3.12e-01 3.17e-01 5.39e-01 1.03e+00 1.39e+00   ph/cm2/s
              Error 9.42e-02 5.23e-02 6.43e-02 4.18e-01 1.83e-01 3.60e-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    1.139    0.074    -      -           3.41e-03 1.36e-04   72.950 57
CPL   0.780    0.306     192.5  294.5      4.93e-03 1.53e-03   68.550 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.983    0.310    -      -           9.02e-03 1.52e-03   56.660 57
CPL   0.916    0.175     944.0    0.0      9.65e-03 1.16e-02   56.650 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: 84.032000 sec.
T50 in the 50-300 keV band: 26.112000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  104.640   -8.696   95.944
T90    87.928   -4.520   83.408
T50    30.028    5.332   35.360
Peak    1.000    9.212   10.212

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  203.9681 -18.3198 0.0065   25.2 -122.3       2.5874    29.6  TRIG_00650530       
------------------------------------------
 
Foreground time interval of the image:
 -8.696  16.857 (delta_t =  25.553 [sec])
Background time interval of the image:
-106.143  -8.696 (delta_t =  97.447 [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   -8.696 sec. to   95.944 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.13894     ( -0.0745403   0.0740371 )
Norm@50keV  : 3.41173E-03    ( -0.000135791   0.000135735 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.95 using 59 PHA bins.
# Reduced chi-squared =          1.280 for     57 degrees of freedom 
# Null hypothesis probability =   7.571605e-02
 
Photon flux (15-150 keV)    in 104.6 sec: 0.397361 ( -0.0164673  0.0165053 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.68606e-06 ( -1.61105e-07  1.61706e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -8.696 sec. to   95.944 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.779829     ( -0.316704   0.294467 )
Epeak [keV] : 192.461      ( -64.0631 525.022 )
Norm@50keV  : 4.92759E-03    ( -0.00125354   0.00181076 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.55 using 59 PHA bins.
# Reduced chi-squared =          1.224 for     56 degrees of freedom 
# Null hypothesis probability =   1.211578e-01
 
Photon flux (15-150 keV)    in 104.6 sec: 0.388672 ( -0.017862  0.017873 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.60186e-06 ( -1.77726e-07  1.76962e-07 ) ergs/cm2
 
Band function
Time interval is from   -8.696 sec. to   95.944 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.780059   ( -0.264112   0.144131 )
beta        : -10.00000    ( 10   1.92415e-11 )
Epeak [keV] : 192.523      ( -73.6889 520.67 )
Norm@50keV   : 4.92618E-03    ( -0.00125247   0.00181117 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.55 using 59 PHA bins.
# Reduced chi-squared =          1.246 for     55 degrees of freedom 
# Null hypothesis probability =   1.036089e-01
 
Photon flux (15-150 keV)    in 104.6 sec: 0.390670 (    ) 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]    : 20.5118  (  )
R^2/D10^2   : 1.68434E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         151.00 using 59 PHA bins.
# Reduced chi-squared =         2.6492 for     57 degrees of freedom 
# Null hypothesis probability =   1.936816e-10
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.414e-07   1.140e-08
25- 50  7.163e-07   4.597e-08
50-150  2.241e-06   1.585e-07
15-150  3.099e-06   1.517e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 1.65936       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         157.36 using 59 PHA bins.
# Reduced chi-squared =         2.7607 for     57 degrees of freedom 
# Null hypothesis probability =   2.453169e-11
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.322e-07   1.862e-08
25- 50  8.314e-07   3.583e-08
50-150  1.823e-06   8.682e-08
15-150  3.087e-06   1.370e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.61308        (-1.08745      1.31071)
R1^2/D10^2  : 0.338789        (-0.156359      0.32034)
kT2 [keV]   : 27.6434        (-2.63006      3.56586)
R2^2/D10^2  : 5.75690E-03    (-0.00192877   0.00232303)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.77 using 59 PHA bins.
# Reduced chi-squared =          1.159 for     55 degrees of freedom 
# Null hypothesis probability =   1.954545e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.094e-07   6.506e-08
25- 50  7.362e-07   9.362e-08
50-150  2.536e-06   2.620e-07
15-150  3.581e-06   3.332e-07

Peak spectrum fit

Power-law model
Time interval is from    9.212 sec. to   10.212 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.983148     ( -0.318675   0.301651 )
Norm@50keV  : 9.02479E-03    ( -0.00152709   0.00151319 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.66 using 59 PHA bins.
# Reduced chi-squared =         0.9941 for     57 degrees of freedom 
# Null hypothesis probability =   4.876390e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.03804 ( -0.177596  0.178947 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.81819e-08 ( -1.76249e-08  1.77968e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    9.212 sec. to   10.212 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.915531     ( -1.26518   -0.915317 )
Epeak [keV] : 944.004      ( -944.707 -944.707 )
Norm@50keV  : 9.65327E-03    ( -0.00190103   0.02124 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.65 using 59 PHA bins.
# Reduced chi-squared =          1.012 for     56 degrees of freedom 
# Null hypothesis probability =   4.505174e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.03468 ( -0.185626  0.18126 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.79266e-08 ( -1.84452e-08  1.79854e-08 ) ergs/cm2
 
Band function
Time interval is from    9.212 sec. to   10.212 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.00000   ( -5   -5 )
beta        : -0.989982    ( -0.308993   0.322136 )
Epeak [keV] : 20.4180      ( -20.4197 19.429 )
Norm@50keV   : 1963.74    ( -322.286   2.23549e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.61 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     55 degrees of freedom 
# Null hypothesis probability =   4.145798e-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]    : 24.6043  (-5.27344  7.55705)
R^2/D10^2   : 2.60163E-02  (-0.0142781   0.0289528)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.21 using 59 PHA bins.
# Reduced chi-squared =          1.109 for     57 degrees of freedom 
# Null hypothesis probability =   2.664761e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.759e-09   1.095e-09
25- 50  1.552e-08   5.083e-09
50-150  6.984e-08   2.274e-08
15-150  8.812e-08   2.813e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 4.25146       (-0.736241     0.736167)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.43 using 59 PHA bins.
# Reduced chi-squared =          1.165 for     57 degrees of freedom 
# Null hypothesis probability =   1.839683e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.059e-08   6.325e-09
25- 50  2.036e-08   1.167e-08
50-150  4.466e-08   2.550e-08
15-150  7.561e-08   4.304e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.59962        (-2.94857      4.70798)
R1^2/D10^2  : 0.950160        (-0.796529      8.48018)
kT2 [keV]   : 33.9422        (-9.84271      28.6604)
R2^2/D10^2  : 8.94641E-03    (-0.00715723   0.0165831)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.09 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     55 degrees of freedom 
# Null hypothesis probability =   4.712615e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.718e-09   4.641e-09
25- 50  1.722e-08   9.150e-09
50-150  7.497e-08   4.102e-08
15-150  9.992e-08   5.235e-08
Plot creation:
Tue Jul 28 18:36:51 EDT 2015