batgrbproduct Analysis for Trigger=701182

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Jun 24 08:51:34 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger701182/batgroup_hand_proc
======================================================================

  Trigger: 00701182      Segment: 000

  BAT Trigger Time: 488402696.52   [s; MET]
      Trigger Stop: 488402696.536   [s; MET]
               UTC: 2016-06-23T19:24:40.060740    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) TDRSS scaled map message

  BAT 
    RA: 293.71550324118   Dec: 21.8936538877306  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    21.52
     Image Trigger?:     NO
     Rate S/N Ratio:     255.998046867549  [ if not an image trigger ]
     Image S/N Ratio:    21.52

  Flight Position:   [ source = BAT ]
    RA: 293.71550324118   Dec: 21.8936538877306  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 293.76300094675   Dec: 21.8629927963324  [deg; J2000]  
        { 19h 35m 03.1s , +21d 51' 46.8" }
         +/- 1.76979113447417 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.749771407015898 [arcmin] (formal 1-sigma fit error)
    SNR: 13.4568704827552
 
  Angular difference between Flight and Ground position is 3.221540 arcmin
 
  Partial Coding Fraction: 0.4609375    [ including projection effects ]

  Duration
     T90: 400.035999953747 +/- 889.815056121522
        Measured from: -0.00400000810623169
                   to: 400.031999945641     [s; relative to TRIGTIME]
     T50: 63.9119999408722 +/- 612.607502577749
        Measured from: 336.068000018597
                   to: 399.979999959469     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0259999632835388     
                   to: 0.974000036716461     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.00400000810623169     
                   to: 800.068000018597     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.236714   0.067885  -0.044511   0.173291
           0.154323   0.150860   0.129864   0.109144 [error]
 Peak      0.304071   0.299215   0.042232   0.003234
           0.013323   0.012898   0.007964   0.005515 [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 6.00e-08 3.60e-08 1.38e-08 7.05e-09 1.13e-07 1.17e-07   erg/cm2
              Error 6.44e-08 5.60e-08 6.32e-08 1.23e-06 1.85e-07 1.24e-06   erg/cm2
Peak flux Power-law 3.71e+00 1.80e+00 5.31e-01 1.98e-01 6.15e+00 6.23e+00   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
Fluence   Cutoff-PL 6.00e-08 3.80e-08 1.25e-08 2.47e-09 1.13e-07 1.13e-07   erg/cm2
              Error 6.55e-08 7.24e-08 6.49e-08 -------- 1.84e-07 --------   erg/cm2
Peak flux Cutoff-PL 2.98e+00 2.45e+00 3.15e-01 2.45e-03 5.75e+00 5.75e+00   ph/cm2/s
              Error 3.33e-01 1.74e-01 7.97e-02 3.59e-03 3.86e-01 3.86e-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    3.384    0.000    -      -           9.65e-06 2.52e-05   46.940 57
CPL   1.733    0.000       5.1    0.0      1.29e-04 0.00e+00   46.970 56
 
The chi2 of BB fit is  which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.759    0.000    -      -           2.65e-02 0.00e+00  130.410 57
CPL  -1.074    1.002      27.9    2.1      7.14e+00 1.80e+01   48.460 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: 0.064000 sec.
T50 in the 50-300 keV band: 0.064000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  800.072   -0.004  800.068
T90   400.036   -0.004  400.032
T50    63.912  336.068  399.980
Peak    1.000   -0.026    0.974

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  293.7630    21.8630   0.0143    27.5464   -86.3202         0.6114071     13.457 TRIG_00701182                 
 
Foreground time interval of the image:
 -0.004   9.781 (delta_t =   9.785 [sec])
Background time interval of the image:
-107.619  -0.004 (delta_t = 107.615 [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  800.068 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.38409     ( -3.38409   -3.38409 )
Norm@50keV  : 9.65296E-06    ( -9.65298e-06   4.0684e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.94 using 59 PHA bins.
# Reduced chi-squared =         0.8235 for     57 degrees of freedom 
# Null hypothesis probability =   8.266567e-01
 
Photon flux (15-150 keV)    in 800.1 sec: 3.55717E-03 ( -0.00355717  0.00450113 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.1341e-07 ( -1.1341e-07  2.57291e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.004 sec. to  800.068 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.73330     (     )
Epeak [keV] : 5.11670      (   )
Norm@50keV  : 1.29469E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.97 using 59 PHA bins.
# Reduced chi-squared =         0.8387 for     56 degrees of freedom 
# Null hypothesis probability =   7.996511e-01
 
Photon flux (15-150 keV)    in 800.1 sec: 3.58629E-03 ( -0.00358629  0.00446015 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.12729e-07 ( -1.12729e-07  2.5623e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.004 sec. to  800.068 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.67702   ( 1.85176   1.85176 )
beta        : -3.38422    ( 9.37167   9.37167 )
Epeak [keV] : 0.893264      ( -2.84515 -2.84515 )
Norm@50keV   : 2.99030E-03    ( -0.00299019   94626.2 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.94 using 59 PHA bins.
# Reduced chi-squared =         0.8534 for     55 degrees of freedom 
# Null hypothesis probability =   7.720211e-01
 
Photon flux (15-150 keV)    in 800.1 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]    : 4.10498  (-4.10498  -4.10498)
R^2/D10^2   : 7.74876E-02  (-0.0774876   -0.0774876)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.06 using 59 PHA bins.
# Reduced chi-squared =         0.8257 for     57 degrees of freedom 
# Null hypothesis probability =   8.231913e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.384e-08   4.485e-08
25- 50  2.480e-08   1.785e-08
50-150  3.518e-10   4.157e-10
15-150  8.899e-08   6.529e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 13.5179       (-13.8351      -13.8351)
Norm        : 7.18644E-02       (-0.0660436     -0.0660436)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.99 using 59 PHA bins.
# Reduced chi-squared =         0.8243 for     57 degrees of freedom 
# Null hypothesis probability =   8.252785e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.095e-08   4.489e-08
25- 50  3.761e-08   3.664e-08
50-150  5.371e-09   7.661e-09
15-150  1.039e-07   8.601e-08
Double BB
# Reduced chi-squared =         0.8417 for     55 degrees of freedom 
# Reduced chi-squared =         0.8399 for     55 degrees of freedom 
# Reduced chi-squared =         0.8390 for     55 degrees of freedom 
# Reduced chi-squared =         0.8387 for     55 degrees of freedom 
# Reduced chi-squared =         0.8385 for     55 degrees of freedom 
# Null hypothesis probability =   7.732072e-01
# Null hypothesis probability =   7.738764e-01
# Null hypothesis probability =   7.866941e-01
# Null hypothesis probability =   7.922256e-01
# Null hypothesis probability =   7.952769e-01
# Null hypothesis probability =   7.966360e-01
# Null hypothesis probability =   7.972086e-01
# Null hypothesis probability =   7.975208e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.044e-08   6.189e-08
25- 50  4.216e-08   6.169e-08
50-150  2.028e-08   1.009e-08
15-150  1.229e-07   9.893e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.026 sec. to    0.974 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.75871     (     )
Norm@50keV  : 2.64919E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         130.41 using 59 PHA bins.
# Reduced chi-squared =         2.2879 for     57 degrees of freedom 
# Null hypothesis probability =   1.112205e-07
 
Photon flux (15-150 keV)    in 1 sec: 6.14936 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.87866e-07 ( 0  0 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.026 sec. to    0.974 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.07378     ( -1.083   0.920897 )
Epeak [keV] : 27.9274      ( -2.31133 1.80106 )
Norm@50keV  : 7.13818    ( -7.32313   28.6451 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.46 using 59 PHA bins.
# Reduced chi-squared =         0.8653 for     56 degrees of freedom 
# Null hypothesis probability =   7.528935e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.74970 ( -0.3851  0.38678 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.56328e-07 ( -1.6639e-08  1.6891e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.026 sec. to    0.974 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.08491   ( -0.915198   0.790672 )
beta        : -9.37167    ( 9.37167   19.2996 )
Epeak [keV] : 27.9348      ( -1.47356 1.82869 )
Norm@50keV   : 7.31962    ( -7.31928   76.2236 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.41 using 59 PHA bins.
# Reduced chi-squared =         0.8802 for     55 degrees of freedom 
# Null hypothesis probability =   7.226788e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.56028e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 7.34896  (-0.359361  0.373083)
R^2/D10^2   : 9.87634  (-1.95636   2.45237)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.47 using 59 PHA bins.
# Reduced chi-squared =         0.8679 for     57 degrees of freedom 
# Null hypothesis probability =   7.503408e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.988e-08   8.150e-09
25- 50  1.350e-07   9.050e-09
50-150  2.659e-08   5.195e-09
15-150  2.515e-07   1.525e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 26.1523       (-2.53512      2.87336)
Norm        : 57.4463       (-6.68716     7.59019)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.74 using 59 PHA bins.
# Reduced chi-squared =          1.276 for     57 degrees of freedom 
# Null hypothesis probability =   7.809823e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.082e-07   8.265e-09
25- 50  1.141e-07   7.600e-09
50-150  5.180e-08   9.515e-09
15-150  2.742e-07   1.865e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.22855        (-6.25458      -6.25458)
R1^2/D10^2  : 11.7977        (-11.8549      9.17804)
kT2 [keV]   : 9.07562        (-9.20926      -9.20926)
R2^2/D10^2  : 1.80424    (-1.54315   10.1125)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.28 using 59 PHA bins.
# Reduced chi-squared =         0.8778 for     55 degrees of freedom 
# Null hypothesis probability =   7.272744e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.310e-08   2.450e-07
25- 50  1.318e-07   8.240e-07
50-150  3.186e-08   5.130e-07
15-150  2.567e-07   1.301e-06
Plot creation:
Fri Jun 24 09:02:04 EDT 2016