batgrbproduct Analysis for Trigger=627137

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Tue Jan 20 17:23:56 EST 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger627137/GCN5_download_cron
======================================================================

  Trigger: 00627137      Segment: 000

  BAT Trigger Time: 443415479.488   [s; MET]
      Trigger Stop: 443415479.744   [s; MET]
               UTC: 2015-01-20T02:57:46.413400    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 10.3079848360545   Dec: 33.9812565264564  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.25
     Image Trigger?:     NO
     Rate S/N Ratio:     16.1554944214035  [ if not an image trigger ]
     Image S/N Ratio:    7.25

  Flight Position:   [ source = BAT ]
    RA: 10.3079848360545   Dec: 33.9812565264564  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 10.3295655833628   Dec: 33.9801638108343  [deg; J2000]  
        { 00h 41m 19.1s , +33d 58' 48.6" }
         +/- 1.51666420717323 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.640058650959673 [arcmin] (formal 1-sigma fit error)
    SNR: 16.7766366100588
 
  Angular difference between Flight and Ground position is 1.075719 arcmin
 
  Partial Coding Fraction: 0.71875    [ including projection effects ]

  Duration
     T90: 1.19599992036819 +/- 0.158795406377939
        Measured from: -0.31199985742569
                   to: 0.884000062942505     [s; relative to TRIGTIME]
     T50: 0.559999942779541 +/- 0.11207141806269
        Measured from: 0.0320001244544983
                   to: 0.592000067234039     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0639999508857727     
                   to: 0.936000049114227     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.403999984264374     
                   to: 0.952000021934509     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.083299   0.091102   0.062005   0.005261
           0.007757   0.007977   0.007161   0.005846 [error]
 Peak      0.067121   0.073596   0.052039   0.002142
           0.006790   0.007058   0.006340   0.005057 [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 2.67e-08 4.07e-08 4.66e-08 1.02e-07 1.44e-07 2.16e-07   erg/cm2
              Error 3.88e-09 3.85e-09 7.12e-09 3.19e-08 1.64e-08 3.87e-08   erg/cm2
Peak flux Power-law 7.00e-01 5.94e-01 3.43e-01 2.96e-01 1.77e+00 1.93e+00   ph/cm2/s
              Error 1.10e-01 6.04e-02 5.38e-02 9.10e-02 1.80e-01 1.99e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.67e-08 4.08e-08 4.67e-08 1.02e-07 1.44e-07 2.13e-07   erg/cm2
              Error 3.89e-09 4.26e-09 5.33e-09 6.96e-08 1.70e-08 5.36e-08   erg/cm2
Peak flux Cutoff-PL 7.03e-01 5.94e-01 3.42e-01 2.91e-01 1.77e+00 1.93e+00   ph/cm2/s
              Error 1.12e-01 4.92e-02 5.32e-02 -------- 1.80e-01 1.68e-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    1.807    0.179    -      -           1.16e-02 1.28e-03   47.310 57
CPL   1.774    0.620     311.3    0.0      1.20e-02 0.00e+00   47.340 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.790    0.189    -      -           1.29e-02 1.52e-03   42.900 57
CPL   1.760    0.641     357.3    0.0      1.34e-02 0.00e+00   42.920 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: 1.344000 sec.
T50 in the 50-300 keV band: 0.576000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    1.356   -0.404    0.952
T90     1.196   -0.312    0.884
T50     0.560    0.032    0.592
Peak    1.000   -0.064    0.936

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   10.3296 +33.9802 0.0115   29.6 -143.7       0.2467    16.8  TRIG_00627137       
------------------------------------------
 
Foreground time interval of the image:
 -0.404   0.952 (delta_t =   1.356 [sec])
Background time interval of the image:
-60.488  -0.404 (delta_t =  60.084 [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   -0.404 sec. to    0.952 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.80655     ( -0.175625   0.181713 )
Norm@50keV  : 1.15640E-02    ( -0.00129247   0.00126552 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.31 using 59 PHA bins.
# Reduced chi-squared =         0.8301 for     57 degrees of freedom 
# Null hypothesis probability =   8.161681e-01
 
Photon flux (15-150 keV)    in 1.356 sec: 1.59756 ( -0.15202  0.15211 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.44326e-07 ( -1.62587e-08  1.65128e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.404 sec. to    0.952 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.77404     ( -0.570361   0.669652 )
Epeak [keV] : 311.332      (   )
Norm@50keV  : 1.20498E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.34 using 59 PHA bins.
# Reduced chi-squared =         0.8454 for     56 degrees of freedom 
# Null hypothesis probability =   7.883271e-01
 
Photon flux (15-150 keV)    in 1.356 sec: 1.59730 ( -0.1522  0.15179 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.44411e-07 ( -1.77734e-08  1.62612e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.404 sec. to    0.952 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.48891   ( -4.48891   -4.48891 )
beta        : -1.89429    ( -0.222553   0.203135 )
Epeak [keV] : 22.4243      ( -22.4243 4.29859 )
Norm@50keV   : 1274.89    ( -120.204   1.05599e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.48 using 59 PHA bins.
# Reduced chi-squared =         0.8451 for     55 degrees of freedom 
# Null hypothesis probability =   7.864892e-01
 
Photon flux (15-150 keV)    in 1.356 sec: 1.58728 ( 5.41272  -0.15635 ) 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]    : 10.6099  (-1.39288  1.68097)
R^2/D10^2   : 0.581950  (-0.244052   0.406481)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          84.21 using 59 PHA bins.
# Reduced chi-squared =          1.477 for     57 degrees of freedom 
# Null hypothesis probability =   1.104299e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.841e-08   3.295e-09
25- 50  4.965e-08   5.973e-09
50-150  3.068e-08   7.350e-09
15-150  9.875e-08   1.201e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 99.9887       (-29.9368      66.1651)
Norm        : 7.01653       (-0.936705     1.06434)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.43 using 59 PHA bins.
# Reduced chi-squared =         0.8671 for     57 degrees of freedom 
# Null hypothesis probability =   7.518568e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.487e-08   3.492e-09
25- 50  4.300e-08   4.997e-09
50-150  6.968e-08   2.656e-08
15-150  1.375e-07   2.961e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.18009        (-1.17588      1.33804)
R1^2/D10^2  : 3.43740        (-1.76568      4.27143)
kT2 [keV]   : 27.2406        (-7.119      14.2255)
R2^2/D10^2  : 1.44479E-02    (-0.0106238   0.0280739)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.76 using 59 PHA bins.
# Reduced chi-squared =         0.8138 for     55 degrees of freedom 
# Null hypothesis probability =   8.363901e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.706e-08   8.539e-09
25- 50  4.045e-08   1.120e-08
50-150  7.975e-08   4.272e-08
15-150  1.473e-07   5.330e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.064 sec. to    0.936 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.79016     ( -0.18517   0.192196 )
Norm@50keV  : 1.28680E-02    ( -0.00153599   0.00150214 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.90 using 59 PHA bins.
# Reduced chi-squared =         0.7526 for     57 degrees of freedom 
# Null hypothesis probability =   9.169481e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.76646 ( -0.179742  0.179823 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.18507e-07 ( -1.43239e-08  1.45506e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.064 sec. to    0.936 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.76030     ( -0.617083   0.665698 )
Epeak [keV] : 357.335      (   )
Norm@50keV  : 1.33653E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.92 using 59 PHA bins.
# Reduced chi-squared =         0.7665 for     56 degrees of freedom 
# Null hypothesis probability =   9.003071e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.76658 ( -0.18011  0.17915 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.18469e-07 ( -1.5538e-08  1.4462e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.064 sec. to    0.936 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 2.70635   ( -4.29021   -4.29021 )
beta        : -1.89933    ( -0.279788   0.221016 )
Epeak [keV] : 24.5447      ( -23.5292 4.51841 )
Norm@50keV   : 37.9429    ( -37.9335   986.092 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.73 using 59 PHA bins.
# Reduced chi-squared =         0.7587 for     55 degrees of freedom 
# Null hypothesis probability =   9.065315e-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]    : 10.4874  (-1.44449  1.78417)
R^2/D10^2   : 0.676877  (-0.296701   0.504052)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.54 using 59 PHA bins.
# Reduced chi-squared =          1.308 for     57 degrees of freedom 
# Null hypothesis probability =   5.936661e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.538e-08   2.515e-09
25- 50  4.085e-08   5.455e-09
50-150  2.443e-08   7.410e-09
15-150  8.066e-08   1.079e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 99.9150       (-29.9885      80.2427)
Norm        : 7.78333       (-1.1344     1.18835)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.70 using 59 PHA bins.
# Reduced chi-squared =         0.7842 for     57 degrees of freedom 
# Null hypothesis probability =   8.817300e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.034e-08   3.125e-09
25- 50  3.517e-08   4.535e-09
50-150  5.697e-08   2.227e-08
15-150  1.125e-07   2.756e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.34857        (-1.24513      1.44224)
R1^2/D10^2  : 3.45972        (-1.80584      2.66438)
kT2 [keV]   : 28.2876        (-8.06286      19.0183)
R2^2/D10^2  : 1.40227E-02    (-0.0110881   0.0320285)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.33 using 59 PHA bins.
# Reduced chi-squared =         0.7333 for     55 degrees of freedom 
# Null hypothesis probability =   9.307465e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.182e-08   7.447e-09
25- 50  3.345e-08   1.225e-08
50-150  6.572e-08   3.581e-08
15-150  1.210e-07   4.697e-08
Plot creation:
Tue Jan 20 17:28:04 EST 2015