batgrbproduct analysis for trigger=960102

batgrbproduct Analysis for Trigger=960102

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 v2.47
    Process Start Time (local time): Mon May 18 14:26:59 EDT 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger960102
======================================================================

  Trigger: 00960102      Segment: 000

  BAT Trigger Time: 605227863.616   [s; MET]
      Trigger Stop: 605227867.712   [s; MET]
               UTC: 2020-03-06T22:50:39.061800    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 198.58161324179   Dec: 11.2550650612691  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.35
     Image Trigger?:     NO
     Rate S/N Ratio:     14.1067359796659  [ if not an image trigger ]
     Image S/N Ratio:    7.35

  Flight Position:   [ source = BAT ]
    RA: 198.58161324179   Dec: 11.2550650612691  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 198.577720442576   Dec: 11.2631612679907  [deg; J2000]  
        { 13h 14m 18.7s , +11d 15' 47.4" }
         +/- 1.27543677510759 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.396705734205899 [arcmin] (formal 1-sigma fit error)
    SNR: 21.4870623616894
 
  Angular difference between Flight and Ground position is 0.537075 arcmin
 
  Partial Coding Fraction: 0.4296875    [ including projection effects ]

  Duration
     T90: 53.1520000696182 +/- 13.7253143456788
        Measured from: -8.8160001039505
                   to: 44.3359999656677     [s; relative to TRIGTIME]
     T50: 19.055999994278 +/- 3.82256871307867
        Measured from: -0.976000070571899
                   to: 18.0799999237061     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.57199990749359     
                   to: 4.57199990749359     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -12.0640000104904     
                   to: 48.0159999132156     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.569615   1.120629   1.276245   0.601628
           0.073634   0.077388   0.070090   0.060902 [error]
 Peak      0.035700   0.046552   0.058793   0.015848
           0.010308   0.011157   0.009774   0.008292 [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 1.65e-07 4.61e-07 1.04e-06 6.25e-06 2.80e-06 7.93e-06   erg/cm2
              Error 2.54e-08 4.16e-08 6.60e-08 9.89e-07 1.80e-07 1.00e-06   erg/cm2
Peak flux Power-law 2.81e-01 3.68e-01 3.54e-01 6.04e-01 1.20e+00 1.61e+00   ph/cm2/s
              Error 1.25e-01 9.88e-02 7.77e-02 3.01e-01 2.60e-01 3.49e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.65e-07 4.60e-07 1.03e-06 6.43e-06 2.81e-06 7.87e-06   erg/cm2
              Error -------- 4.58e-08 7.60e-08 1.27e-06 -------- 1.25e-06   erg/cm2
Peak flux Cutoff-PL 2.74e-01 3.70e-01 3.58e-01 5.45e-01 1.20e+00 1.55e+00   ph/cm2/s
              Error 1.34e-01 1.02e-01 8.96e-02 3.96e-01 2.68e-01 4.63e-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    0.827    0.120    -      -           4.03e-03 2.77e-04    0.000  0
CPL   0.819    0.121    9997.6    0.0      4.06e-03 8.24e-04    0.000  0
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.059    0.381    -      -           1.04e-02 2.17e-03    0.000  0
CPL   0.927    0.368     460.0    0.0      1.19e-02 2.30e-02    0.000  0
 
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: 35.712000 sec.
T50 in the 50-300 keV band: 16.832000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   60.080  -12.064   48.016
T90    53.152   -8.816   44.336
T50    19.056   -0.976   18.080
Peak    1.000    3.572    4.572

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
  198.5777    11.2632   0.0089    30.6281    58.5061         3.2381128     21.487 TRIG_00960102                 
 
Foreground time interval of the image:
-12.064  37.085 (delta_t =  49.149 [sec])
Background time interval of the image:
-239.616 -12.064 (delta_t = 227.552 [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

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

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 4.096000

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 4.096000

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  -12.064 sec. to   48.016 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.826750     ( -0.122078   0.117849 )
Norm@50keV  : 4.03460E-03    ( -0.000278558   0.000274831 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 60.08 sec: 0.463334 ( -0.031131  0.031304 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.80156e-06 ( -1.79698e-07  1.80112e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -12.064 sec. to   48.016 sec.
 XSPEC: quit
 
 
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.818719     ( -0.122534   0.119355 )
Epeak [keV] : 9997.61      ( -9998.22 -9998.22 )
Norm@50keV  : 4.06179E-03    ( -0.000259903   0.00138884 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 60.08 sec: 0.465571 ( -0.033514  0.028859 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.81061e-06 ( 0  0 ) ergs/cm2

Band function

Time interval is from  -12.064 sec. to   48.016 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

XSPEC12>exit
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 27.5936  (  )
R^2/D10^2   : 8.52005E-03  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.410e-08   9.460e-09
25- 50  3.814e-07   4.314e-08
50-150  2.109e-06   1.926e-07
15-150  2.555e-06   1.989e-07

Thermal bremsstrahlung (OTTB)

XSPEC12>/*
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 1.94832       (     )
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.915e-07   2.181e-08
25- 50  5.607e-07   5.449e-08
50-150  1.230e-06   3.277e-07
15-150  2.082e-06   2.995e-07

Double BB

XSPEC12>/*
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 10.3655        (-2.25666      2.78191)
R1^2/D10^2  : 9.95015E-02        (-0.0483214      0.107671)
kT2 [keV]   : 54.7738        (-14.9513      52.9433)
R2^2/D10^2  : 1.11558E-03    (-0.000688412   0.00150859)
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.527e-07   5.098e-08
25- 50  4.963e-07   1.516e-07
50-150  2.203e-06   9.958e-07
15-150  2.852e-06   1.021e-06

Peak spectrum fit

Power-law model

Time interval is from    3.572 sec. to    4.572 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.05920     ( -0.394958   0.367468 )
Norm@50keV  : 1.04158E-02    ( -0.00218155   0.00215608 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 1 sec: 1.20384 ( -0.258833  0.26105 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.10372e-07 ( -2.3919e-08  2.41149e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    3.572 sec. to    4.572 sec.
 XSPEC: quit
 
 
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.927399     ( -1.57583   -0.840769 )
Epeak [keV] : 459.953      ( -322.703 -322.703 )
Norm@50keV  : 1.18782E-02    ( -0.00313934   0.0428783 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 1 sec: 1.19787 ( -0.271907  0.26493 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.03105e-08 ( 0  0 ) ergs/cm2

Band function

Time interval is from    3.572 sec. to    4.572 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

XSPEC12>exit
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 23.1307  (-5.90699  9.28101)
R^2/D10^2   : 3.54754E-02  (-0.0227805   0.056456)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.430e-09   1.824e-09
25- 50  1.867e-08   7.536e-09
50-150  7.460e-08   3.367e-08
15-150  9.670e-08   4.017e-08

Thermal bremsstrahlung (OTTB)

XSPEC12>/*
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-64.609      -200)
Norm        : 5.05448       (-1.06834     1.06834)
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.259e-08   7.445e-09
25- 50  2.421e-08   1.419e-08
50-150  5.310e-08   3.145e-08
15-150  8.990e-08   5.160e-08

Double BB

XSPEC12>/*
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.35902        (-3.94583      9.33548)
R1^2/D10^2  : 1.27197        (-1.19463      106.636)
kT2 [keV]   : 31.3447        (-10.426      141.536)
R2^2/D10^2  : 1.25888E-02    (-0.012107   0.0338638)
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.278e-09   5.610e-09
25- 50  2.017e-08   1.089e-08
50-150  8.150e-08   4.771e-08
15-150  1.109e-07   6.020e-08

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

Power-law model

XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.803449     ( -0.118344   0.114294 )
Norm@50keV  : 4.59723E-03    ( -0.000312801   0.000308749 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 49.15 sec: 0.528306 ( -0.0347274  0.0349205 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.63665e-06 ( -1.6556e-07  1.65895e-07 ) ergs/cm2

Cutoff power-law model

 XSPEC: quit
 
 
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.795902     ( -0.451932   0.13257 )
Epeak [keV] : 9999.99      ( -9999.99 -9999.99 )
Norm@50keV  : 4.62988E-03    ( -0.000313669   0.000278719 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 49.15 sec: 0.528159 ( -0.036352  0.034831 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.63809e-06 ( -1.71071e-07  1.65075e-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)  = 4.61e-07
S(50-100 keV) = 1.04e-06

T90 vs. Hardness ratio plot

T90                                   = 53.1520000696182 sec.
Hardness ratio (energy fluence ratio) = 2.25597

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.96734
Count Ratio (50-100 keV) / (15-25 keV) = 2.24054

Mask shadow pattern

IMX = 3.092967542200852E-01, IMY = -5.048471485744995E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 4.096000

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:
-239.616000 -12.064000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.6082  35.5092   19.9  35.9  -58.8   0.2633   0.6   12.4	Her X-1                       
170.3157  20.0585    2.3  38.7  108.0   3.2172   5.0 ------	UNKNOWN                       
175.6816  37.4810    3.4  25.9  132.4   1.0206   3.3 ------	UNKNOWN                       
124.6323  70.0044    2.4  50.5 -167.9   3.2094   4.8 ------	UNKNOWN                       
285.5220  80.3518    3.0  48.0 -129.1   3.7916   3.9 ------	UNKNOWN

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

Time interval of the image:
-12.064000 37.084600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.6327  35.3473   19.5  36.0  -58.6   0.0910   0.6    8.6	Her X-1                       
212.6712 -10.2159    2.6  50.8   33.5   2.1161   4.4 ------	UNKNOWN                       
198.5777  11.2632    0.5  30.6   58.5   3.2381  21.5 ------	UNKNOWN                       
252.9095  15.7759    2.2  45.3  -31.8   0.9122   5.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
100.484590 962.499400
975.384000 1065.454000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
172.7442 -28.5471    3.5  47.0   40.5   7.1916   3.3 ------	UNKNOWN                       
159.6836  43.6352    2.8  46.6  150.2  11.8977   4.2 ------	UNKNOWN                       
240.7641  42.2066    2.6  48.0 -129.1  13.5417   4.5 ------	UNKNOWN

Plot creation:
Mon Jun  1 00:17:46 EDT 2020