batgrbproduct Analysis for Trigger=632158

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Feb 23 17:18:54 EST 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger632158/GCN5_download_cron
======================================================================

  Trigger: 00632158      Segment: 000

  BAT Trigger Time: 446300199.52   [s; MET]
      Trigger Stop: 446300199.584   [s; MET]
               UTC: 2015-02-22T12:16:26.299620    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 293.724289603285   Dec: 21.8878543033797  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.82
     Image Trigger?:     NO
     Rate S/N Ratio:     18.7882942280559  [ if not an image trigger ]
     Image S/N Ratio:    7.82

  Flight Position:   [ source = BAT ]
    RA: 293.724289603285   Dec: 21.8878543033797  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 293.714719952588   Dec: 21.8901733939213  [deg; J2000]  
        { 19h 34m 51.5s , +21d 53' 24.6" }
         +/- 2.48274998615807 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.03591504242988 [arcmin] (formal 1-sigma fit error)
    SNR: 8.2971395949793
 
  Angular difference between Flight and Ground position is 0.550656 arcmin
 
  Partial Coding Fraction: 0.1542969    [ including projection effects ]

  Duration
     T90: 0.0759999752044678 +/- 0.0215407028819316
        Measured from: 0.00400012731552124
                   to: 0.080000102519989     [s; relative to TRIGTIME]
     T50: 0.0399999618530273 +/- 0.0164924559253201
        Measured from: 0.0120001435279846
                   to: 0.052000105381012     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.449999988079071     
                   to: 0.550000011920929     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.00400000810623169     
                   to: 0.0920000076293945     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.062459   0.038510   0.019280  -0.002748
           0.008713   0.008221   0.006047   0.003566 [error]
 Peak      0.064929   0.038053   0.032417  -0.009463
           0.015935   0.016490   0.012702   0.011084 [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 1.94e-08 1.53e-08 8.09e-09 6.23e-09 4.55e-08 4.89e-08   erg/cm2
              Error 4.19e-09 3.82e-09 3.92e-09 5.45e-09 1.08e-08 1.34e-08   erg/cm2
Peak flux Power-law 7.77e-01 3.64e-01 1.03e-01 3.67e-02 1.26e+00 1.28e+00   ph/cm2/s
              Error 2.88e-01 1.68e-01 9.33e-02 6.44e-02 4.04e-01 4.15e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.91e-08 1.75e-08 6.44e-09 8.44e-10 4.38e-08 4.38e-08   erg/cm2
              Error 4.44e-09 4.90e-09 5.05e-09 4.46e-09 1.05e-08 1.14e-08   erg/cm2
Peak flux Cutoff-PL 7.75e-01 3.64e-01 1.04e-01 3.69e-02 1.26e+00 1.28e+00   ph/cm2/s
              Error 2.92e-01 1.85e-01 9.62e-02 5.10e-02 4.03e-01 4.12e-01   ph/cm2/s
 
Fluence        Band 1.89e-08 1.71e-08 7.54e-09 -------- 4.50e-08 4.55e-08   erg/cm2
              Error 4.53e-09 4.87e-09 -------- -------- 1.09e-08 1.14e-08   erg/cm2
Peak flux      Band 7.76e-01 3.64e-01 1.03e-01 3.66e-02 1.26e+00 1.28e+00   ph/cm2/s
              Error -------- 1.84e-01 -------- 6.42e-02 4.04e-01 --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.916    0.436    -      -           4.47e-02 1.65e-02   48.530 57
CPL   1.717    0.000       8.0    0.0      2.77e-01 0.00e+00   46.550 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.817    1.032    -      -           5.24e-03 4.44e-03   69.440 57
CPL   1.583    0.000      16.0    0.0      2.49e-02 0.00e+00   70.500 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    0.088    0.004    0.092
T90     0.076    0.004    0.080
T50     0.040    0.012    0.052
Peak    1.000   -0.450    0.550

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  293.7147 +21.8902 0.0233   37.3  -87.4       0.1262     8.3  TRIG_00632158       
------------------------------------------
 
Foreground time interval of the image:
  0.004   0.092 (delta_t =   0.088 [sec])
Background time interval of the image:
-60.520   0.004 (delta_t =  60.524 [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    0.004 sec. to    0.092 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.91553     ( -0.390516   0.480861 )
Norm@50keV  : 4.47291E-02    ( -0.016311   0.0167544 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.53 using 59 PHA bins.
# Reduced chi-squared =         0.8514 for     57 degrees of freedom 
# Null hypothesis probability =   7.801920e-01
 
Photon flux (15-150 keV)    in 0.088 sec: 11.5759 ( -2.26569  2.2666 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.5547e-08 ( -1.05661e-08  1.10268e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.004 sec. to    0.092 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.71722     (     )
Epeak [keV] : 8.00944      (   )
Norm@50keV  : 0.276600    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.55 using 59 PHA bins.
# Reduced chi-squared =         0.8313 for     56 degrees of freedom 
# Null hypothesis probability =   8.118244e-01
 
Photon flux (15-150 keV)    in 0.088 sec: 11.6015 ( -2.24064  2.25 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.37965e-08 ( -1.01834e-08  1.08302e-08 ) ergs/cm2
 
Band function
Time interval is from    0.004 sec. to    0.092 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.71605   ( -1.67979   1.72379 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 8.03098      ( -5.55938 17.4415 )
Norm@50keV   : 0.277084    ( -0.155074   21.3487 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.55 using 59 PHA bins.
# Reduced chi-squared =         0.8464 for     55 degrees of freedom 
# Null hypothesis probability =   7.841906e-01
 
Photon flux (15-150 keV)    in 0.088 sec: 11.5962 ( -4.5962  -2.23197 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.50305e-08 ( -4.50299e-08  -1.18718e-08 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 5.45612  (-1.10328  1.50317)
R^2/D10^2   : 65.6999  (-43.3437   121.722)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.29 using 59 PHA bins.
# Reduced chi-squared =         0.8823 for     57 degrees of freedom 
# Null hypothesis probability =   7.229241e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.969e-08   8.354e-09
25- 50  1.585e-08   6.794e-09
50-150  9.670e-10   7.252e-10
15-150  3.651e-08   1.362e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 22.1716       (-7.73981      11.5999)
Norm        : 127.861       (-47.3423     92.9101)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.66 using 59 PHA bins.
# Reduced chi-squared =         0.8185 for     57 degrees of freedom 
# Null hypothesis probability =   8.342064e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.895e-08   4.875e-09
25- 50  1.791e-08   6.271e-09
50-150  6.344e-09   4.271e-09
15-150  4.320e-08   1.217e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.13217        (-1.20296      1.36273)
R1^2/D10^2  : 185.945        (-133.52      750.188)
kT2 [keV]   : 12.6927        (-4.74231      7.61843)
R2^2/D10^2  : 0.913331    (-0.844401   6.38732)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.61 using 59 PHA bins.
# Reduced chi-squared =         0.8110 for     55 degrees of freedom 
# Null hypothesis probability =   8.405575e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.013e-08   1.167e-08
25- 50  1.609e-08   8.246e-09
50-150  9.353e-09   5.971e-09
15-150  4.557e-08   2.240e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.450 sec. to    0.550 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.81693     ( -0.718767   1.34433 )
Norm@50keV  : 5.23603E-03    ( -0.00523617   0.00363751 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.44 using 59 PHA bins.
# Reduced chi-squared =          1.218 for     57 degrees of freedom 
# Null hypothesis probability =   1.248420e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.26474 ( -0.404997  0.403691 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.81793e-08 ( -2.51992e-08  2.67123e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.450 sec. to    0.550 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58253     (     )
Epeak [keV] : 16.0038      (   )
Norm@50keV  : 2.49366E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.50 using 59 PHA bins.
# Reduced chi-squared =          1.259 for     56 degrees of freedom 
# Null hypothesis probability =   9.201062e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.26472 ( -0.404309  0.40091 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.72175e-08 ( -2.42442e-08  2.77668e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.450 sec. to    0.550 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -2.09709   ( 2.09709   2.09709 )
beta        : -2.81686    ( -1.34084   0.718837 )
Epeak [keV] : 6.96907      ( -6.96907 -6.96907 )
Norm@50keV   : 0.711689    ( -0.315409   0.495111 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.44 using 59 PHA bins.
# Reduced chi-squared =          1.263 for     55 degrees of freedom 
# Null hypothesis probability =   9.106337e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.26437 ( 5.73563  -0.404335 ) 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]    : 3.47220  (-1.2954  8.31455)
R^2/D10^2   : 57.8723  (-58.3494   1017.73)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.60 using 59 PHA bins.
# Reduced chi-squared =          1.309 for     57 degrees of freedom 
# Null hypothesis probability =   5.876906e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.539e-08   1.450e-08
25- 50  6.002e-09   3.934e-09
50-150  2.909e-11   3.428e-11
15-150  3.142e-08   1.948e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 32.4568       (-24.1591      47.0825)
Norm        : 9.50951       (-4.64804     43.1912)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.88 using 59 PHA bins.
# Reduced chi-squared =          1.244 for     57 degrees of freedom 
# Null hypothesis probability =   1.022359e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.011e-08   1.006e-08
25- 50  2.396e-08   1.529e-08
50-150  1.451e-08   1.216e-08
15-150  5.858e-08   3.444e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.49755        (-1.14132      1.58004)
R1^2/D10^2  : 317.512        (-299.525      40391)
kT2 [keV]   : 14.5286        (-5.40832      8.34199)
R2^2/D10^2  : 9.76081E-02    (-0.0806635   0.358235)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.88 using 59 PHA bins.
# Reduced chi-squared =          1.198 for     55 degrees of freedom 
# Null hypothesis probability =   1.495401e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.163e-08   1.244e-08
25- 50  1.798e-08   1.123e-08
50-150  2.366e-08   1.763e-08
15-150  6.326e-08   3.530e-08
Plot creation:
Mon Feb 23 17:21:47 EST 2015