batgrbproduct Analysis for Trigger=635794

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Mar 23 02:08:06 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger635794/GCN5_download_cron
======================================================================

  Trigger: 00635794      Segment: 000

  BAT Trigger Time: 448707832   [s; MET]
      Trigger Stop: 448707896   [s; MET]
               UTC: 2015-03-22T09:03:38.657120    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 83.8554676556244   Dec: 21.5399692891845  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    21.05
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    21.05

  Flight Position:   [ source = BAT ]
    RA: 83.8554676556244   Dec: 21.5399692891845  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 83.8523268726303   Dec: 21.5423003803039  [deg; J2000]  
        { 05h 35m 24.6s , +21d 32' 32.3" }
         +/- 0.94098129433977 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.298311195133645 [arcmin] (formal 1-sigma fit error)
    SNR: 33.1787349078738
 
  Angular difference between Flight and Ground position is 0.224248 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     1.163183   1.034500   0.481567   0.121533
           0.043922   0.044549   0.037479   0.030726 [error]
 Peak      1.163183   1.034500   0.481567   0.121533
           0.043922   0.044549   0.037479   0.030726 [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 3.24e-07 4.14e-07 3.88e-07 6.38e-07 1.34e-06 1.76e-06   erg/cm2
              Error 2.69e-08 2.16e-08 3.62e-08 1.22e-07 8.04e-08 1.57e-07   erg/cm2
Peak flux Power-law 1.65e-01 1.17e-01 5.47e-02 3.59e-02 3.54e-01 3.73e-01   ph/cm2/s
              Error 1.40e-02 6.12e-03 4.92e-03 6.38e-03 1.92e-02 1.95e-02   ph/cm2/s
 
Fluence   Cutoff-PL 3.24e-07 4.15e-07 3.87e-07 6.30e-07 1.34e-06 1.76e-06   erg/cm2
              Error 2.12e-08 2.25e-08 3.60e-08 2.22e-07 8.75e-08 2.49e-07   erg/cm2
Peak flux Cutoff-PL 1.65e-01 1.17e-01 5.46e-02 3.54e-02 3.54e-01 3.73e-01   ph/cm2/s
              Error 1.40e-02 4.92e-03 4.93e-03 1.10e-02 1.46e-02 2.33e-02   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    2.097    0.110    -      -           2.26e-03 1.48e-04   47.230 57
CPL   2.141    0.000     138.0    0.0      2.13e-03 1.10e-03   47.200 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.097    0.110    -      -           2.26e-03 1.48e-04   47.230 57
CPL   2.141    0.000     138.0    0.0      2.13e-03 1.10e-03   47.200 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
   83.8523 +21.5423 0.0058    0.2 -147.9       2.8203    33.2  TRIG_00635794       
------------------------------------------
 
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: 2.09674     ( -0.10867   0.111548 )
Norm@50keV  : 2.25512E-03    ( -0.000149315   0.000147268 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.23 using 59 PHA bins.
# Reduced chi-squared =         0.8286 for     57 degrees of freedom 
# Null hypothesis probability =   8.184729e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.354218 ( -0.0191542  0.0192101 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.34054e-06 ( -7.99674e-08  8.07443e-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: 2.14053     (     )
Epeak [keV] : 137.989      (   )
Norm@50keV  : 2.13199E-03    ( -0.00066172   0.0015309 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.20 using 59 PHA bins.
# Reduced chi-squared =         0.8429 for     56 degrees of freedom 
# Null hypothesis probability =   7.926166e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.354205 ( -0.010191  0.019037 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.33963e-06 ( -9.35104e-08  8.15552e-08 ) 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       : -1.56033   ( 1.56305   1.56305 )
beta        : -2.11881    ( 2.1189   0.127513 )
Epeak [keV] : 21.4632      ( -21.5316 30.2602 )
Norm@50keV   : 5.53115E-03    ( -0.00318289   2353.75 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.08 using 59 PHA bins.
# Reduced chi-squared =         0.8560 for     55 degrees of freedom 
# Null hypothesis probability =   7.674458e-01
 
Photon flux (15-150 keV)    in 64 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]    : 9.72947  (  )
R^2/D10^2   : 0.169201  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         138.16 using 59 PHA bins.
# Reduced chi-squared =         2.4239 for     57 degrees of freedom 
# Null hypothesis probability =   1.087094e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.067e-07   1.930e-08
25- 50  4.941e-07   2.979e-08
50-150  2.381e-07   3.536e-08
15-150  9.389e-07   6.208e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 60.9750       (-9.77941      12.5552)
Norm        : 1.78951       (-0.175205     0.182233)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.03 using 59 PHA bins.
# Reduced chi-squared =         0.9829 for     57 degrees of freedom 
# Null hypothesis probability =   5.115879e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.886e-07   2.330e-08
25- 50  4.414e-07   2.269e-08
50-150  5.089e-07   6.790e-08
15-150  1.239e-06   7.392e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.78858        (-1.00458      1.06523)
R1^2/D10^2  : 1.00562        (-0.455821      1.05104)
kT2 [keV]   : 21.3841        (-4.6356      8.13957)
R2^2/D10^2  : 5.76261E-03    (-0.00386758   0.00932813)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.01 using 59 PHA bins.
# Reduced chi-squared =          1.000 for     55 degrees of freedom 
# Null hypothesis probability =   4.741156e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.033e-07   5.709e-08
25- 50  4.146e-07   5.338e-08
50-150  5.805e-07   1.781e-07
15-150  1.298e-06   2.512e-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: 2.09674     ( -0.10867   0.111548 )
Norm@50keV  : 2.25512E-03    ( -0.000149315   0.000147268 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.23 using 59 PHA bins.
# Reduced chi-squared =         0.8286 for     57 degrees of freedom 
# Null hypothesis probability =   8.184729e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.354218 ( -0.0191542  0.0192101 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.34054e-06 ( -7.99674e-08  8.07443e-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: 2.14053     (     )
Epeak [keV] : 137.989      (   )
Norm@50keV  : 2.13199E-03    ( -0.00066172   0.0015309 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.20 using 59 PHA bins.
# Reduced chi-squared =         0.8429 for     56 degrees of freedom 
# Null hypothesis probability =   7.926166e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.354205 ( -0.010191  0.019037 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.33963e-06 ( -9.35104e-08  8.15552e-08 ) 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       : -1.56033   ( 1.56305   1.56305 )
beta        : -2.11881    ( 2.1189   0.127513 )
Epeak [keV] : 21.4632      ( -21.5316 30.2602 )
Norm@50keV   : 5.53115E-03    ( -0.00318289   2420.43 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.08 using 59 PHA bins.
# Reduced chi-squared =         0.8560 for     55 degrees of freedom 
# Null hypothesis probability =   7.674458e-01
 
Photon flux (15-150 keV)    in 64 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]    : 9.72947  (  )
R^2/D10^2   : 0.169201  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         138.16 using 59 PHA bins.
# Reduced chi-squared =         2.4239 for     57 degrees of freedom 
# Null hypothesis probability =   1.087094e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.067e-07   2.083e-08
25- 50  4.941e-07   2.842e-08
50-150  2.381e-07   3.555e-08
15-150  9.389e-07   5.600e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 60.9750       (-9.77941      12.5552)
Norm        : 1.78951       (-0.175205     0.182233)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.03 using 59 PHA bins.
# Reduced chi-squared =         0.9829 for     57 degrees of freedom 
# Null hypothesis probability =   5.115879e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.886e-07   2.390e-08
25- 50  4.414e-07   2.291e-08
50-150  5.089e-07   6.554e-08
15-150  1.239e-06   8.032e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.78858        (-1.00458      1.06523)
R1^2/D10^2  : 1.00562        (-0.455821      1.05104)
kT2 [keV]   : 21.3841        (-4.6356      8.13957)
R2^2/D10^2  : 5.76261E-03    (-0.00386758   0.00932813)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.01 using 59 PHA bins.
# Reduced chi-squared =          1.000 for     55 degrees of freedom 
# Null hypothesis probability =   4.741156e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.033e-07   5.024e-08
25- 50  4.146e-07   6.106e-08
50-150  5.805e-07   1.850e-07
15-150  1.298e-06   3.453e-07
Plot creation:
Mon Mar 23 02:11:05 EDT 2015