batgrbproduct Analysis for Trigger=635289

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Mar 19 00:55:01 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger635289/GCN5_download_cron
======================================================================

  Trigger: 00635289      Segment: 000

  BAT Trigger Time: 448355106.624   [s; MET]
      Trigger Stop: 448355123.008   [s; MET]
               UTC: 2015-03-18T07:04:53.299140    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 324.970714696083   Dec: -61.4766556855567  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.87
     Image Trigger?:     NO
     Rate S/N Ratio:     10.0995049383621  [ if not an image trigger ]
     Image S/N Ratio:    9.87

  Flight Position:   [ source = BAT ]
    RA: 324.970714696083   Dec: -61.4766556855567  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 324.989692872406   Dec: -61.4613817006035  [deg; J2000]  
        { 21h 39m 57.5s , -61d 27' 41.0" }
         +/- 1.19956574390532 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.444563824295129 [arcmin] (formal 1-sigma fit error)
    SNR: 23.4545374573844
 
  Angular difference between Flight and Ground position is 1.065675 arcmin
 
  Partial Coding Fraction: 0.4453125    [ including projection effects ]

  Duration
     T90: 80.12399995327 +/- 12.5736475237014
        Measured from: 5.24400007724762
                   to: 85.3680000305176     [s; relative to TRIGTIME]
     T50: 42.6119999885559 +/- 4.12350580265996
        Measured from: 22.4800000786781
                   to: 65.092000067234     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 66.6159999966621     
                   to: 67.6159999966621     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -6.59600001573563     
                   to: 98.5799999833107     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.507384   1.892916   0.783321   0.201199
           0.086392   0.089159   0.077648   0.068369 [error]
 Peak      0.051574   0.059269   0.015963   0.005338
           0.008927   0.009300   0.007488   0.006822 [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 5.46e-07 7.44e-07 7.47e-07 1.36e-06 2.47e-06 3.39e-06   erg/cm2
              Error 5.04e-08 4.58e-08 7.65e-08 2.78e-07 1.76e-07 3.58e-07   erg/cm2
Peak flux Power-law 5.22e-01 3.80e-01 1.83e-01 1.25e-01 1.14e+00 1.21e+00   ph/cm2/s
              Error 1.42e-01 7.60e-02 6.07e-02 7.79e-02 2.28e-01 2.43e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.21e-07 7.91e-07 7.23e-07 5.29e-07 2.33e-06 2.56e-06   erg/cm2
              Error 5.65e-08 6.48e-08 9.05e-08 -------- 2.22e-07 5.85e-07   erg/cm2
Peak flux Cutoff-PL 5.00e-01 4.35e-01 1.57e-01 2.19e-02 1.11e+00 1.11e+00   ph/cm2/s
              Error 1.53e-01 1.31e-01 1.03e-01 9.75e-02 2.38e-01 1.95e-01   ph/cm2/s
 
Fluence        Band 4.93e-07 8.15e-07 6.90e-07 9.75e-07 2.36e-06 2.98e-06   erg/cm2
              Error 4.53e-08 6.39e-08 8.58e-08 -------- 1.87e-07 3.99e-07   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    1.994    0.117    -      -           2.55e-03 1.90e-04   68.910 57
CPL   1.457    0.565      41.8    0.0      5.22e-03 0.00e+00   65.760 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.053    0.363    -      -           7.44e-03 1.90e-03   57.130 57
CPL   0.900    3.175      34.5    0.0      4.01e-02 0.00e+00   56.150 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: 68.480000 sec.
T50 in the 50-300 keV band: 47.424000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  105.176   -6.596   98.580
T90    80.124    5.244   85.368
T50    42.612   22.480   65.092
Peak    1.000   66.616   67.616

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  324.9897 -61.4614 0.0082   33.5  148.4       4.1929    23.5  TRIG_00635289       
------------------------------------------
 
Foreground time interval of the image:
 -6.596  75.577 (delta_t =  82.173 [sec])
Background time interval of the image:
-239.624  -6.596 (delta_t = 233.028 [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   -6.596 sec. to   98.580 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.99446     ( -0.115174   0.118112 )
Norm@50keV  : 2.55176E-03    ( -0.000190794   0.000188478 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.91 using 59 PHA bins.
# Reduced chi-squared =          1.209 for     57 degrees of freedom 
# Null hypothesis probability =   1.340641e-01
 
Photon flux (15-150 keV)    in 105.2 sec: 0.381791 ( -0.0239059  0.0239266 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.47485e-06 ( -1.75247e-07  1.7703e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -6.596 sec. to   98.580 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.45657     ( -0.613631   0.516343 )
Epeak [keV] : 41.8189      (   )
Norm@50keV  : 5.22170E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.76 using 59 PHA bins.
# Reduced chi-squared =          1.174 for     56 degrees of freedom 
# Null hypothesis probability =   1.746892e-01
 
Photon flux (15-150 keV)    in 105.2 sec: 0.372564 ( -0.025564  0.025447 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.32985e-06 ( -2.1991e-07  2.23918e-07 ) ergs/cm2
 
Band function
Time interval is from   -6.596 sec. to   98.580 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.12032   ( -1.37273   -0.105581 )
beta        : -2.25785    ( -0.393827   0.217079 )
Epeak [keV] : 29.1695      ( -7.22466 9.33513 )
Norm@50keV   : 0.357788    ( -0.356437   155.195 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.27 using 59 PHA bins.
# Reduced chi-squared =          1.078 for     55 degrees of freedom 
# Null hypothesis probability =   3.225901e-01
 
Photon flux (15-150 keV)    in 105.2 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.35629e-06 ( -2.35555e-06  -1.85594e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.72103  (-0.671494  0.72941)
R^2/D10^2   : 0.195195  (-0.048296   0.0634677)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         103.12 using 59 PHA bins.
# Reduced chi-squared =         1.8091 for     57 degrees of freedom 
# Null hypothesis probability =   1.783927e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.912e-07   4.255e-08
25- 50  9.339e-07   6.764e-08
50-150  4.488e-07   7.753e-08
15-150  1.774e-06   1.215e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 65.8839       (-11.9609      16.0028)
Norm        : 1.91231       (-0.199356     0.227836)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.72 using 59 PHA bins.
# Reduced chi-squared =          1.153 for     57 degrees of freedom 
# Null hypothesis probability =   2.005154e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.125e-07   4.655e-08
25- 50  8.018e-07   5.092e-08
50-150  9.836e-07   1.553e-07
15-150  2.298e-06   1.788e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.71974        (-1.03491      0.958323)
R1^2/D10^2  : 0.413019        (-0.138064      0.162403)
kT2 [keV]   : 38.0353        (-15.14      83.228)
R2^2/D10^2  : 7.75990E-04    (-0.000696963   0.00351826)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.40 using 59 PHA bins.
# Reduced chi-squared =          1.062 for     55 degrees of freedom 
# Null hypothesis probability =   3.514402e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.712e-07   6.554e-08
25- 50  8.546e-07   1.142e-07
50-150  1.126e-06   5.065e-07
15-150  2.452e-06   6.002e-07

Peak spectrum fit

Power-law model
Time interval is from   66.616 sec. to   67.616 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.05260     ( -0.347709   0.379113 )
Norm@50keV  : 7.44195E-03    ( -0.00192945   0.00186909 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.13 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     57 degrees of freedom 
# Null hypothesis probability =   4.700949e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.14416 ( -0.228037  0.228086 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.88615e-08 ( -1.61047e-08  1.67477e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   66.616 sec. to   67.616 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.899859     ( -5.14579   1.2033 )
Epeak [keV] : 34.4769      (   )
Norm@50keV  : 4.01070E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.15 using 59 PHA bins.
# Reduced chi-squared =          1.003 for     56 degrees of freedom 
# Null hypothesis probability =   4.693895e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.11032 ( -0.240251  0.23586 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.97734e-08 ( -1.88334e-08  2.24334e-08 ) ergs/cm2
 
Band function
Time interval is from   66.616 sec. to   67.616 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.92002   ( -6.6354   -4.92002 )
beta        : -2.47691    ( -1.22419   0.526419 )
Epeak [keV] : 24.9652      ( -7.41549 6.01299 )
Norm@50keV   : 1235.78    ( -239.951   12797.9 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.65 using 59 PHA bins.
# Reduced chi-squared =         0.9755 for     55 degrees of freedom 
# Null hypothesis probability =   5.261954e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.46051e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 8.24657  (-1.45785  1.86163)
R^2/D10^2   : 1.17107  (-0.658701   1.37686)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.13 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     57 degrees of freedom 
# Null hypothesis probability =   4.701448e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.472e-08   5.719e-09
25- 50  2.713e-08   1.024e-08
50-150  7.865e-09   4.452e-09
15-150  4.971e-08   1.733e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 53.2224       (-21.9557      55.7356)
Norm        : 6.36367       (-1.89954     2.86608)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.19 using 59 PHA bins.
# Reduced chi-squared =         0.9859 for     57 degrees of freedom 
# Null hypothesis probability =   5.052627e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.577e-08   4.345e-09
25- 50  2.315e-08   7.000e-09
50-150  2.381e-08   1.345e-08
15-150  6.273e-08   1.995e-08
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.20203        (-1.78022      1.97259)
R1^2/D10^2  : 1.80504        (      )
kT2 [keV]   : 41.9300        (-28.1738      -41.818)
R2^2/D10^2  : 1.66140E-03    (-0.00164865   0.081731)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.71 using 59 PHA bins.
#Fit statistic : Chi-Squared =          52.68 using 59 PHA bins.
# Reduced chi-squared =         0.9584 for     55 degrees of freedom 
# Reduced chi-squared =         0.9579 for     55 degrees of freedom 
# Null hypothesis probability =   5.625136e-01
# Null hypothesis probability =   5.636171e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.592e-08   8.943e-09
25- 50  2.473e-08   1.402e-08
50-150  2.911e-08   1.735e-08
15-150  6.976e-08   3.554e-08
Plot creation:
Thu Mar 19 00:58:54 EDT 2015