batgrbproduct analysis for trigger=725036

batgrbproduct Analysis for Trigger=725036

Analysis Summary

Notes:

1) No attempt has been made to eliminate the non-significant decimal places.
2) This batgrbproduct analysis is done using the HEASARC data.
3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Dec 19 15:46:53 EST 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger725036
======================================================================

  Trigger: 00725036      Segment: 000

  BAT Trigger Time: 502413189.952   [s; MET]
      Trigger Stop: 502413190.464   [s; MET]
               UTC: 2016-12-02T23:12:52.703120    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 356.894953923009   Dec: 19.6396627418034  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    11.12
     Image Trigger?:     NO
     Rate S/N Ratio:     21.1896201004171  [ if not an image trigger ]
     Image S/N Ratio:    11.12

  Flight Position:   [ source = BAT ]
    RA: 356.894953923009   Dec: 19.6396627418034  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 356.904392451795   Dec: 19.6523165014102  [deg; J2000]  
        { 23h 47m 37.1s , +19d 39' 08.3" }
         +/- 0.705308449646534 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.190431642985255 [arcmin] (formal 1-sigma fit error)
    SNR: 50.0863846698242
 
  Angular difference between Flight and Ground position is 0.927837 arcmin
 
  Partial Coding Fraction: 0.8671875    [ including projection effects ]

  Duration
     T90: 118.495999932289 +/- 0.712474578189743
        Measured from: -62.1560000181198
                   to: 56.3399999141693     [s; relative to TRIGTIME]
     T50: 79.7799999713898 +/- 15.6003697077415
        Measured from: -52.2480000257492
                   to: 27.5319999456406     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2.09200000762939     
                   to: 3.09200000762939     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -63.4120000004768     
                   to: 65.7919999957085     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.606249   5.276495   3.824425   0.924712
           0.099806   0.111488   0.105824   0.101291 [error]
 Peak      0.143211   0.259187   0.255595   0.068204
           0.009268   0.010994   0.010968   0.008679 [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 1.26e-06 2.22e-06 2.98e-06 8.27e-06 8.68e-06 1.47e-05   erg/cm2
              Error 6.82e-08 6.87e-08 1.10e-07 6.88e-07 2.61e-07 7.53e-07   erg/cm2
Peak flux Power-law 1.52e+00 1.85e+00 1.62e+00 2.44e+00 5.84e+00 7.43e+00   ph/cm2/s
              Error 1.34e-01 9.95e-02 8.60e-02 2.72e-01 2.77e-01 3.64e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.20e-06 2.26e-06 3.04e-06 5.80e-06 8.50e-06 1.23e-05   erg/cm2
              Error 8.65e-08 7.65e-08 1.18e-07 1.73e-06 3.01e-07 1.75e-06   erg/cm2
Peak flux Cutoff-PL 1.31e+00 1.92e+00 1.74e+00 1.36e+00 5.70e+00 6.33e+00   ph/cm2/s
              Error 1.68e-01 1.12e-01 1.07e-01 4.08e-01 2.87e-01 4.99e-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    1.571    0.054    -      -           7.15e-03 2.02e-04   52.990 57
CPL   1.322    0.217     142.6  228.8      9.40e-03 2.21e-03   48.920 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.188    0.079    -      -           4.99e-02 2.30e-03   50.010 57
CPL   0.562    0.348     127.0   53.4      9.71e-02 3.62e-02   39.100 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: 90.880000 sec.
T50 in the 50-300 keV band: 38.336000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  129.204  -63.412   65.792
T90   118.496  -62.156   56.340
T50    79.780  -52.248   27.532
Peak    1.000    2.092    3.092

Click here for the BAT GCN circular template

Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  356.9044    19.6523   0.0039    30.7910   -13.2289         5.0352379     50.086 TRIG_00725036                 
 
Foreground time interval of the image:
-24.851  11.149 (delta_t =  36.000 [sec])
Background time interval of the image:

Lightcurves

Notes:

1) The mask-weighted light curves are using the flight position.
2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
3) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
4) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
5) Time of each bin is in the middle of the bin.

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

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

8 ms binning

From T100_start-3 s to T100_start+3 s

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

2 ms binning

From T100_start-1 s to T100_start+1 s

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

SN=5 or 10 sec. binning (whichever binning is satisfied first)

SN=5 or 10 sec. binning (T < 200 sec)

Quad-rate summed light curves (from T0-300s to T0+1000s)

Spectral Evolution

Spectra

Notes:

1) The fitting includes the systematic errors.
2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.

Time averaged spectrum fit using the average DRM

Power-law model

Time interval is from  -63.412 sec. to   65.792 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.57103     ( -0.0538573   0.0540108 )
Norm@50keV  : 7.15327E-03    ( -0.000201658   0.000201523 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.99 using 59 PHA bins.
# Reduced chi-squared =         0.9297 for     57 degrees of freedom 
# Null hypothesis probability =   6.261940e-01
 
Photon flux (15-150 keV)    in 129.2 sec: 0.911200 ( -0.027524  0.027599 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.67646e-06 ( -2.61108e-07  2.61785e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -63.412 sec. to   65.792 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32242     ( -0.222112   0.211058 )
Epeak [keV] : 142.578      ( -43.7112 413.978 )
Norm@50keV  : 9.39952E-03    ( -0.00189864   0.00252775 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.92 using 59 PHA bins.
# Reduced chi-squared =         0.8735 for     56 degrees of freedom 
# Null hypothesis probability =   7.376292e-01
 
Photon flux (15-150 keV)    in 129.2 sec: 0.894393 ( -0.030699  0.03079 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.50007e-06 ( -3.01792e-07  3.00334e-07 ) ergs/cm2

Band function

Time interval is from  -63.412 sec. to   65.792 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  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]    : 15.1594  (  )
R^2/D10^2   : 9.39076E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         294.48 using 59 PHA bins.
# Reduced chi-squared =         5.1662 for     57 degrees of freedom 
# Null hypothesis probability =   1.014713e-33
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.827e-07   3.249e-08
25- 50  2.338e-06   8.850e-08
50-150  3.674e-06   2.119e-07
15-150  6.594e-06   2.183e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-27.6305      -200)
Norm        : 3.66637       (-0.102203     0.102203)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.99 using 59 PHA bins.
# Reduced chi-squared =         0.8594 for     57 degrees of freedom 
# Null hypothesis probability =   7.659716e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.181e-06   3.534e-08
25- 50  2.272e-06   7.558e-08
50-150  4.980e-06   1.550e-07
15-150  8.433e-06   2.435e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.83998        (-0.769916      0.801876)
R1^2/D10^2  : 0.651179        (-0.175564      0.268388)
kT2 [keV]   : 28.8384        (-3.31673      4.54527)
R2^2/D10^2  : 7.53609E-03    (-0.00300366   0.00423452)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.79 using 59 PHA bins.
# Reduced chi-squared =         0.9053 for     55 degrees of freedom 
# Null hypothesis probability =   6.733399e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.051e-06   9.341e-08
25- 50  2.343e-06   1.499e-07
50-150  5.073e-06   5.420e-07
15-150  8.467e-06   6.764e-07

Peak spectrum fit

Power-law model

Time interval is from    2.092 sec. to    3.092 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18837     ( -0.0786508   0.0784471 )
Norm@50keV  : 4.98614E-02    ( -0.00229695   0.00229695 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.01 using 59 PHA bins.
# Reduced chi-squared =         0.8773 for     57 degrees of freedom 
# Null hypothesis probability =   7.326547e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.84334 ( -0.27645  0.27668 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.07598e-07 ( -2.59165e-08  2.60071e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    2.092 sec. to    3.092 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.562212     ( -0.362369   0.334206 )
Epeak [keV] : 126.951      ( -27.5593 79.1503 )
Norm@50keV  : 9.71171E-02    ( -0.0284202   0.0439106 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.10 using 59 PHA bins.
# Reduced chi-squared =         0.6982 for     56 degrees of freedom 
# Null hypothesis probability =   9.580796e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.69569 ( -0.28731  0.28717 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14594e-07 ( -1.68478e-08  2.82658e-08 ) ergs/cm2

Band function

Time interval is from    2.092 sec. to    3.092 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  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]    : 19.0924  (-1.08173  1.16408)
R^2/D10^2   : 0.321021  (-0.0567772   0.0679965)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          94.77 using 59 PHA bins.
# Reduced chi-squared =          1.663 for     57 degrees of freedom 
# Null hypothesis probability =   1.245959e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.296e-08   2.170e-09
25- 50  1.108e-07   7.050e-09
50-150  2.971e-07   2.325e-08
15-150  4.309e-07   2.520e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-6.95021      -200)
Norm        : 24.1169       (-1.13439     1.13439)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         101.62 using 59 PHA bins.
# Reduced chi-squared =         1.7827 for     57 degrees of freedom 
# Null hypothesis probability =   2.563669e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.004e-08   2.995e-09
25- 50  1.155e-07   6.250e-09
50-150  2.533e-07   1.340e-08
15-150  4.288e-07   2.785e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.42210        (-1.96163      2.60739)
R1^2/D10^2  : 3.20561        (-1.81627      5.75607)
kT2 [keV]   : 26.4201        (-3.49012      6.74397)
R2^2/D10^2  : 9.34993E-02    (-0.0534013   0.0723865)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.07 using 59 PHA bins.
# Reduced chi-squared =         0.7468 for     55 degrees of freedom 
# Null hypothesis probability =   9.185219e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.103e-08   1.039e-08
25- 50  1.101e-07   1.968e-08
50-150  3.381e-07   5.130e-08
15-150  4.892e-07   7.275e-08

Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)

Power-law model

 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.49258     ( -0.0587336   0.0588506 )
Norm@50keV  : 9.47490E-03    ( -0.000297065   0.000296921 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.55 using 59 PHA bins.
# Reduced chi-squared =         0.9044 for     57 degrees of freedom 
# Null hypothesis probability =   6.789835e-01
 
Photon flux (15-150 keV)    in 36 sec: 1.18050 ( -0.0392006  0.0392902 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.23977e-06 ( -1.09904e-07  1.10223e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.08106     ( -0.250331   0.236755 )
Epeak [keV] : 118.171      ( -25.8785 84.3826 )
Norm@50keV  : 1.48264E-02    ( -0.00328399   0.00450079 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.39 using 59 PHA bins.
# Reduced chi-squared =         0.7569 for     56 degrees of freedom 
# Null hypothesis probability =   9.105516e-01
 
Photon flux (15-150 keV)    in 36 sec: 1.14686 ( -0.04318  0.04328 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.13944e-06 ( -1.24715e-07  1.24459e-07 ) ergs/cm2

Band function

 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2

S(25-50 keV) vs. S(50-100 keV) plot

S(25-50 keV)  = 2.22e-06
S(50-100 keV) = 2.98e-06

T90 vs. Hardness ratio plot

T90                                   = 118.495999932289 sec.
Hardness ratio (energy fluence ratio) = 1.34234

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.46315
Count Ratio (50-100 keV) / (15-25 keV) = 1.0605

Mask shadow pattern

IMX = 5.800932083954842E-01, IMY = 1.363683258125580E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

Spacecraft aspect plot

Bright source in the pre-burst/pre-slew/post-slew images

Pre-burst image of 15-350 keV band

Time interval of the image:

Pre-slew background subtracted image of 15-350 keV band

Time interval of the image:
-24.851400 11.148590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
356.9044  19.6523    0.2  30.8  -13.2   5.0342  50.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
63.148670 423.748600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
308.0723  40.9103   34.6  46.5  -35.0   0.2678   0.3    3.1	Cyg X-3                       
326.2805  38.4466    4.9  32.5  -31.3   0.9640   2.4    9.1	Cyg X-2                       
299.8092  65.3728    2.6  58.7   -7.5  11.7652   4.5 ------	UNKNOWN                       
327.3029 -15.1803    2.4  45.4 -121.3   6.6984   4.8 ------	UNKNOWN

Plot creation:
Mon Dec 19 18:44:20 EST 2016