batgrbproduct analysis for trigger=724438

batgrbproduct Analysis for Trigger=724438

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 15:54:49 EST 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger724438
======================================================================

  Trigger: 00724438      Segment: 000

  BAT Trigger Time: 502096317.088   [s; MET]
      Trigger Stop: 502096317.472   [s; MET]
               UTC: 2016-11-29T07:11:39.857180    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) Expanded to TRIGTIME - 32 ms to TRIGTIME + 320 ms

  BAT 
    RA: 316.192888589222   Dec: 32.125124540387  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.73
     Image Trigger?:     NO
     Rate S/N Ratio:     32.4499614791759  [ if not an image trigger ]
     Image S/N Ratio:    8.73

  Flight Position:   [ source = BAT ]
    RA: 316.192888589222   Dec: 32.125124540387  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 316.217133730944   Dec: 32.1360926393416  [deg; J2000]  
        { 21h 04m 52.1s , +32d 08' 09.9" }
         +/- 1.61910540410255 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.687520647422061 [arcmin] (formal 1-sigma fit error)
    SNR: 15.2810754309283
 
  Angular difference between Flight and Ground position is 1.396660 arcmin
 
  Partial Coding Fraction: 0.6953125    [ including projection effects ]

  Duration
     T90: 35.5439999699593 +/- 2.09513345944611
        Measured from: 6.18000000715256
                   to: 41.7239999771118     [s; relative to TRIGTIME]
     T50: 15.3319999575615 +/- 2.17121626453183
        Measured from: 18.0759999752045
                   to: 33.407999932766     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 26.6439999938011     
                   to: 27.6439999938011     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0559999942779541     
                   to: 44.5839999914169     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.526902   2.154708   1.605890   0.361065
           0.049632   0.053190   0.046857   0.038761 [error]
 Peak      0.084154   0.142551   0.142085   0.033188
           0.008496   0.009651   0.008972   0.006951 [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 5.03e-07 9.04e-07 1.25e-06 3.58e-06 3.59e-06 6.23e-06   erg/cm2
              Error 2.95e-08 3.08e-08 4.76e-08 3.10e-07 1.16e-07 3.37e-07   erg/cm2
Peak flux Power-law 8.43e-01 1.04e+00 9.28e-01 1.44e+00 3.31e+00 4.25e+00   ph/cm2/s
              Error 1.12e-01 8.45e-02 7.03e-02 2.31e-01 2.31e-01 3.02e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.85e-07 9.13e-07 1.26e-06 2.97e-06 3.55e-06 5.61e-06   erg/cm2
              Error 3.67e-08 3.41e-08 5.19e-08 6.70e-07 1.28e-07 7.57e-07   erg/cm2
Peak flux Cutoff-PL 7.82e-01 1.06e+00 9.64e-01 1.05e+00 3.27e+00 3.85e+00   ph/cm2/s
              Error 1.38e-01 9.24e-02 8.64e-02 4.18e-01 2.38e-01 5.00e-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    1.534    0.057    -      -           8.54e-03 2.59e-04   55.270 57
CPL   1.405    0.193     243.4  -61.1      9.84e-03 2.07e-03   54.210 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.161    0.116    -      -           2.83e-02 1.91e-03   44.590 57
CPL   0.849    0.424     206.2  -56.7      3.94e-02 1.87e-02   43.110 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: 33.088000 sec.
T50 in the 50-300 keV band: 14.720000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   44.528    0.056   44.584
T90    35.544    6.180   41.724
T50    15.332   18.076   33.408
Peak    1.000   26.644   27.644

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
  316.2171    32.1361   0.0126    36.4364    -8.9684         0.7673930     15.281 TRIG_00724438                 
 
Foreground time interval of the image:
  0.056  10.613 (delta_t =  10.557 [sec])
Background time interval of the image:
-239.088   0.056 (delta_t = 239.144 [sec])

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

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)

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    0.056 sec. to   44.584 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.53443     ( -0.05682   0.056878 )
Norm@50keV  : 8.53900E-03    ( -0.000258865   0.000258748 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.27 using 59 PHA bins.
# Reduced chi-squared =         0.9696 for     57 degrees of freedom 
# Null hypothesis probability =   5.403860e-01
 
Photon flux (15-150 keV)    in 44.53 sec: 1.07621 ( -0.03547  0.03557 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.58825e-06 ( -1.15426e-07  1.15595e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.056 sec. to   44.584 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40468     ( -0.224453   0.160947 )
Epeak [keV] : 243.360      ( -121.14 -243.42 )
Norm@50keV  : 9.84200E-03    ( -0.00148132   0.00265728 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.21 using 59 PHA bins.
# Reduced chi-squared =         0.9680 for     56 degrees of freedom 
# Null hypothesis probability =   5.429228e-01
 
Photon flux (15-150 keV)    in 44.53 sec: 1.06678 ( -0.03853  0.03863 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.55437e-06 ( -1.28487e-07  1.27959e-07 ) ergs/cm2

Band function

Time interval is from    0.056 sec. to   44.584 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]    : 15.7259  (  )
R^2/D10^2   : 9.87783E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         302.40 using 59 PHA bins.
# Reduced chi-squared =         5.3052 for     57 degrees of freedom 
# Null hypothesis probability =   3.986745e-35
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.258e-07   1.405e-08
25- 50  9.359e-07   3.985e-08
50-150  1.607e-06   9.218e-08
15-150  2.769e-06   1.004e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-16.3913      -200)
Norm        : 4.37948       (-0.132228     0.132228)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.34 using 59 PHA bins.
# Reduced chi-squared =          1.006 for     57 degrees of freedom 
# Null hypothesis probability =   4.624795e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.857e-07   1.536e-08
25- 50  9.344e-07   3.184e-08
50-150  2.049e-06   6.568e-08
15-150  3.469e-06   1.176e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.03021        (-0.769211      0.809059)
R1^2/D10^2  : 0.731492        (-0.196402      0.293842)
kT2 [keV]   : 31.5982        (-3.90899      5.55634)
R2^2/D10^2  : 6.80129E-03    (-0.00280992   0.00399378)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.25 using 59 PHA bins.
# Reduced chi-squared =         0.9501 for     55 degrees of freedom 
# Null hypothesis probability =   5.802184e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.267e-07   4.279e-08
25- 50  9.594e-07   6.880e-08
50-150  2.168e-06   2.754e-07
15-150  3.554e-06   2.781e-07

Peak spectrum fit

Power-law model

Time interval is from   26.644 sec. to   27.644 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.16123     ( -0.116792   0.115501 )
Norm@50keV  : 2.83130E-02    ( -0.00191169   0.00191051 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.59 using 59 PHA bins.
# Reduced chi-squared =         0.7822 for     57 degrees of freedom 
# Null hypothesis probability =   8.841401e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.30640 ( -0.23125  0.23159 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.90516e-07 ( -2.12943e-08  2.13945e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   26.644 sec. to   27.644 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.848806     ( -0.483693   0.363346 )
Epeak [keV] : 206.175      ( -92.6935 -206.175 )
Norm@50keV  : 3.94338E-02    ( -0.0122728   0.0251298 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.11 using 59 PHA bins.
# Reduced chi-squared =         0.7698 for     56 degrees of freedom 
# Null hypothesis probability =   8.965691e-01
 
Photon flux (15-150 keV)    in 1 sec: 3.26719 ( -0.23791  0.23791 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.86358e-07 ( -2.23847e-08  2.22875e-08 ) ergs/cm2

Band function

Time interval is from   26.644 sec. to   27.644 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]    : 19.9608  (-1.76343  1.99673)
R^2/D10^2   : 0.155700  (-0.041764   0.0555917)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          82.14 using 59 PHA bins.
# Reduced chi-squared =          1.441 for     57 degrees of freedom 
# Null hypothesis probability =   1.629659e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.197e-08   1.625e-09
25- 50  5.954e-08   5.920e-09
50-150  1.758e-07   2.045e-08
15-150  2.473e-07   2.195e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-12.3977      -200)
Norm        : 13.7369       (-0.949306     0.949306)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          74.89 using 59 PHA bins.
# Reduced chi-squared =          1.314 for     57 degrees of freedom 
# Null hypothesis probability =   5.617670e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.421e-08   2.750e-09
25- 50  6.582e-08   5.755e-09
50-150  1.443e-07   3.669e-08
15-150  2.444e-07   4.150e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.51888        (-2.27983      2.61151)
R1^2/D10^2  : 1.39651        (-0.74417      2.33749)
kT2 [keV]   : 32.9389        (-6.83135      14.9973)
R2^2/D10^2  : 2.53538E-02    (-0.0175131   0.0325528)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.17 using 59 PHA bins.
# Reduced chi-squared =         0.7850 for     55 degrees of freedom 
# Null hypothesis probability =   8.760829e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.318e-08   8.686e-09
25- 50  6.317e-08   1.765e-08
50-150  2.026e-07   7.851e-08
15-150  2.889e-07   1.054e-07

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: 1.37434     ( -0.178976   0.178162 )
Norm@50keV  : 4.62923E-03    ( -0.000492089   0.000491354 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.11 using 59 PHA bins.
# Reduced chi-squared =          1.072 for     57 degrees of freedom 
# Null hypothesis probability =   3.306787e-01
 
Photon flux (15-150 keV)    in 10.56 sec: 0.560559 ( -0.0614157  0.0615693 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.74901e-07 ( -5.48219e-08  5.52037e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.680661     ( -0.881204   0.734637 )
Epeak [keV] : 98.3713      ( -30.33 -98.3713 )
Norm@50keV  : 1.01523E-02    ( -0.00562731   0.0166907 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.54 using 59 PHA bins.
# Reduced chi-squared =          1.045 for     56 degrees of freedom 
# Null hypothesis probability =   3.822357e-01
 
Photon flux (15-150 keV)    in 10.56 sec: 0.545187 ( -0.063708  0.063736 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.5468e-07 ( -5.99829e-08  5.98668e-08 ) 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)  = 9.04e-07
S(50-100 keV) = 1.25e-06

T90 vs. Hardness ratio plot

T90                                   = 35.5439999699593 sec.
Hardness ratio (energy fluence ratio) = 1.38274

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.41116
Count Ratio (50-100 keV) / (15-25 keV) = 1.05173

Mask shadow pattern

IMX = 7.292190432617182E-01, IMY = 1.150843779654006E-01

TIME vs. PHA plot around the trigger time

TIME vs. DetID plot around the trigger time

100 us light curve (15-350 keV)

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:
-239.088000 0.056000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.5543  35.1804    0.6  48.1  -21.0  10.3153  20.7    2.2	Cyg X-1                       
308.2193  41.0195    3.6  47.4   -8.9   1.3698   3.2    6.4	Cyg X-3                       
326.0467  38.2532    6.1  38.7    7.2   0.6135   1.9    7.2	Cyg X-2                       
349.6546 -55.7102    3.3  57.4 -170.4   4.5888   3.5 ------	UNKNOWN                       
290.9834  38.7647    2.4  55.8  -22.3   3.9381   4.8 ------	UNKNOWN                       
325.0052 -56.0725    3.5  57.2 -154.1   5.2849   3.3 ------	UNKNOWN                       
303.5238 -33.1793    2.2  45.2 -122.3   4.5799   5.2 ------	UNKNOWN

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

Time interval of the image:
0.056000 10.612610
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.4969  35.1026    5.7  48.1  -21.1  -0.1725  -2.0    7.5	Cyg X-1                       
308.1312  40.9908   13.3  47.4   -9.0  -0.0643  -0.9    2.5	Cyg X-3                       
326.2177  38.4200    3.3  38.8    7.5   0.1955   3.5    6.3	Cyg X-2                       
  8.2549 -10.9252    2.2  34.6  129.4   0.3423   5.2 ------	UNKNOWN                       
335.3925  21.1559    2.3  20.6   18.9   0.1933   4.9 ------	UNKNOWN                       
316.2171  32.1361    0.8  36.4   -9.0   0.7674  15.3 ------	UNKNOWN                       
286.9449  22.2271    2.7  51.9  -42.7   0.8360   4.3 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
66.212590 613.912600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.3531  35.5595    0.0  50.6  -39.5   4.5079   2.0   14.0	Her X-1                       
288.7553  10.9470    1.9  33.0  -95.1   5.3374   5.9    2.5	GRS 1915+105                  
299.5917  35.2015    0.2  14.1  -44.3  23.9460  52.6    0.1	Cyg X-1                       
308.1281  40.9690    1.6  11.0   -5.3   3.2062   7.1    1.3	Cyg X-3                       
326.2016  38.4915    4.0  10.3   77.9   1.3332   2.9   10.3	Cyg X-2                       
  5.0864  33.9858    4.0  40.6  102.3   5.5539   2.9 ------	UNKNOWN                       
358.9593  14.2561    2.6  42.8  133.1   6.7323   4.5 ------	UNKNOWN

Plot creation:
Mon Dec 19 18:48:59 EST 2016