batgrbproduct Analysis for Trigger=622476

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Dec 26 15:34:31 EST 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger622476/GCN5_download_cron
======================================================================

  Trigger: 00622476      Segment: 000

  BAT Trigger Time: 441241280   [s; MET]
      Trigger Stop: 441241360   [s; MET]
               UTC: 2014-12-25T23:01:07.034720    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 138.750633927598   Dec: 33.7947041860652  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.93
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    8.93

  Flight Position:   [ source = BAT ]
    RA: 138.750633927598   Dec: 33.7947041860652  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 138.753041341835   Dec: 33.7728122422065  [deg; J2000]  
        { 09h 15m 00.7s , +33d 46' 22.1" }
         +/- 2.21706942947104 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.871702943622499 [arcmin] (formal 1-sigma fit error)
    SNR: 9.75321865131616
 
  Angular difference between Flight and Ground position is 1.318992 arcmin
 
  Partial Coding Fraction: 0.2617188    [ including projection effects ]

  Duration
     T90: 40.9280000329018 +/- 6.71550802409261
        Measured from: 6.60000014305115
                   to: 47.5280001759529     [s; relative to TRIGTIME]
     T50: 17.3440000414848 +/- 3.86727810644922
        Measured from: 12.0080001354218
                   to: 29.3520001769066     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 11.755999982357     
                   to: 12.755999982357     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 5.49599999189377     
                   to: 52.6320000290871     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.727121   1.235576   1.124870   0.456085
           0.101811   0.106513   0.093430   0.079014 [error]
 Peak      0.018163   0.064589   0.076958   0.040222
           0.015578   0.016301   0.014951   0.012124 [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 2.78e-07 5.69e-07 9.08e-07 3.23e-06 2.52e-06 4.99e-06   erg/cm2
              Error 4.83e-08 5.88e-08 8.79e-08 7.14e-07 2.23e-07 7.55e-07   erg/cm2
Peak flux Power-law 2.40e-01 3.68e-01 4.24e-01 9.37e-01 1.31e+00 1.97e+00   ph/cm2/s
              Error 1.73e-01 1.65e-01 1.07e-01 5.28e-01 4.09e-01 5.17e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.79e-07 5.70e-07 9.08e-07 3.19e-06 2.52e-06 4.95e-06   erg/cm2
              Error 3.75e-08 5.92e-08 9.16e-08 -------- 2.22e-07 1.10e-06   erg/cm2
Peak flux Cutoff-PL 2.46e-01 3.74e-01 4.25e-01 9.16e-01 1.32e+00 1.96e+00   ph/cm2/s
              Error 2.20e-01 1.66e-01 1.23e-01 6.17e-01 4.08e-01 6.49e-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    1.325    0.152    -      -           5.44e-03 4.66e-04   65.610 57
CPL   1.321    0.321    10000.0    0.0      5.47e-03 4.65e-04   65.620 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.795    0.532    -      -           1.14e-02 3.75e-03   52.230 57
CPL   0.787    0.609    10000.0    0.0      1.15e-02 -3.76e-03   52.230 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: 25.216000 sec.
T50 in the 50-300 keV band: 12.800000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   47.136    5.496   52.632
T90    40.928    6.600   47.528
T50    17.344   12.008   29.352
Peak    1.000   11.756   12.756

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  138.7530 +33.7728 0.0197   47.7  177.6       3.2070     9.8  TRIG_00622476       
------------------------------------------
 
Foreground time interval of the image:
  5.496  52.632 (delta_t =  47.136 [sec])
Background time interval of the image:
-15.799   5.496 (delta_t =  21.295 [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    5.496 sec. to   52.632 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32499     ( -0.153464   0.150861 )
Norm@50keV  : 5.44296E-03    ( -0.000466869   0.000465543 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.61 using 59 PHA bins.
# Reduced chi-squared =          1.151 for     57 degrees of freedom 
# Null hypothesis probability =   2.030105e-01
 
Photon flux (15-150 keV)    in 47.14 sec: 0.652448 ( -0.0610881  0.0613698 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.52037e-06 ( -2.23082e-07  2.23605e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    5.496 sec. to   52.632 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32123     ( -0.450745   0.191771 )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 5.46514E-03    ( -0.00046485   0.000464164 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.62 using 59 PHA bins.
# Reduced chi-squared =          1.172 for     56 degrees of freedom 
# Null hypothesis probability =   1.777608e-01
 
Photon flux (15-150 keV)    in 47.14 sec: 0.652331 ( -0.0308  0.060825 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.51932e-06 ( -2.21294e-07  2.2342e-07 ) ergs/cm2
 
Band function
Time interval is from    5.496 sec. to   52.632 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.05793   ( 1.05793   1.05793 )
beta        : -1.32499    ( 1.32499   0.153615 )
Epeak [keV] : 38.0177      ( -38.0177 -38.0177 )
Norm@50keV   : 1.07102E-02    ( -0.00573151   0.792339 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.61 using 59 PHA bins.
# Reduced chi-squared =          1.193 for     55 degrees of freedom 
# Null hypothesis probability =   1.548555e-01
 
Photon flux (15-150 keV)    in 47.14 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]    : 19.0273  (-2.10095  2.48896)
R^2/D10^2   : 3.36532E-02  (-0.0116189   0.016888)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         102.66 using 59 PHA bins.
# Reduced chi-squared =         1.8010 for     57 degrees of freedom 
# Null hypothesis probability =   1.996149e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.128e-07   2.039e-08
25- 50  5.432e-07   7.066e-08
50-150  1.446e-06   2.053e-07
15-150  2.102e-06   2.373e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 2.77322       (-0.238616     0.238563)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.73 using 59 PHA bins.
# Reduced chi-squared =          1.311 for     57 degrees of freedom 
# Null hypothesis probability =   5.757650e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.256e-07   3.693e-08
25- 50  6.264e-07   1.006e-07
50-150  1.374e-06   5.529e-07
15-150  2.326e-06   5.501e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.57634        (-3.25062      3.39979)
R1^2/D10^2  : 0.240886        (-0.14118      0.662723)
kT2 [keV]   : 44.8981        (-17.8816      -45.4341)
R2^2/D10^2  : 1.68217E-03    (-0.00133933   0.00662719)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.45 using 59 PHA bins.
# Reduced chi-squared =          1.244 for     55 degrees of freedom 
# Null hypothesis probability =   1.051638e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.276e-07   9.046e-08
25- 50  6.208e-07   2.179e-07
50-150  1.683e-06   7.817e-07
15-150  2.531e-06   9.763e-07

Peak spectrum fit

Power-law model
Time interval is from   11.756 sec. to   12.756 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.795240     ( -0.585017   0.479805 )
Norm@50keV  : 1.13826E-02    ( -0.00393673   0.00356939 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.23 using 59 PHA bins.
# Reduced chi-squared =         0.9163 for     57 degrees of freedom 
# Null hypothesis probability =   6.543620e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.30844 ( -0.402522  0.416347 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.33283e-07 ( -3.36066e-08  3.3606e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   11.756 sec. to   12.756 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.786670     ( -1.92042   -0.702769 )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 1.14607E-02    ( -0.0039466   -0.0114611 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.23 using 59 PHA bins.
# Reduced chi-squared =         0.9328 for     56 degrees of freedom 
# Null hypothesis probability =   6.181736e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.31805 ( -0.412759  0.40271 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.33281e-07 ( -3.35876e-08  3.3629e-08 ) ergs/cm2
 
Band function
Time interval is from   11.756 sec. to   12.756 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.718909   ( 0.718819   0.718819 )
beta        : -0.805501    ( -0.470214   0.594778 )
Epeak [keV] : 14.8388      ( -14.8054 -14.8054 )
Norm@50keV   : 1.74965E-02    ( -0.00943041   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.23 using 59 PHA bins.
# Reduced chi-squared =         0.9496 for     55 degrees of freedom 
# Null hypothesis probability =   5.811662e-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]    : 33.6289  (-10.5215  25.359)
R^2/D10^2   : 1.37794E-02  (-0.0137794   0.0293854)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.11 using 59 PHA bins.
# Reduced chi-squared =         0.9669 for     57 degrees of freedom 
# Null hypothesis probability =   5.462583e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.266e-09   1.461e-09
25- 50  1.461e-08   8.840e-09
50-150  1.106e-07   6.530e-08
15-150  1.275e-07   7.325e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 6.00968       (-1.67867     1.67795)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.03 using 59 PHA bins.
# Reduced chi-squared =          1.053 for     57 degrees of freedom 
# Null hypothesis probability =   3.664711e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.499e-08   9.160e-09
25- 50  2.883e-08   1.740e-08
50-150  6.322e-08   3.771e-08
15-150  1.070e-07   6.575e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.73554        (-4.6581      11.7684)
R1^2/D10^2  : 0.790925        (-0.780052      28.471)
kT2 [keV]   : 48.4300        (-41.732      -48.3373)
R2^2/D10^2  : 4.59812E-03    (-0.00434852   0.019135)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.64 using 59 PHA bins.
# Reduced chi-squared =         0.9388 for     55 degrees of freedom 
# Null hypothesis probability =   6.039818e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.544e-09   5.895e-09
25- 50  2.241e-08   1.262e-08
50-150  1.057e-07   5.790e-08
15-150  1.377e-07   7.180e-08
Plot creation:
Fri Dec 26 15:39:17 EST 2014