batgrbproduct analysis for trigger=1031636

batgrbproduct Analysis for Trigger=1031636

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 v2.48
    Process Start Time (local time): Sun Nov 13 11:41:13 EST 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1031636
======================================================================

  Trigger: 01031636      Segment: 000

  BAT Trigger Time: 634599611.008   [s; MET]
      Trigger Stop: 634599623.168   [s; MET]
               UTC: 2021-02-09T21:39:44.528860    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 328.09639350866   Dec: 43.5587284402821  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.25
     Image Trigger?:     NO
     Rate S/N Ratio:     10.816653826392  [ if not an image trigger ]
     Image S/N Ratio:    10.25

  Flight Position:   [ source = BAT ]
    RA: 328.09639350866   Dec: 43.5587284402821  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 328.096909876726   Dec: 43.5445563657356  [deg; J2000]  
        { 21h 52m 23.3s , +43d 32' 40.4" }
         +/- 1.55216785536005 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.603615658455308 [arcmin] (formal 1-sigma fit error)
    SNR: 16.2311327503271
 
  Angular difference between Flight and Ground position is 0.850621 arcmin
 
  Partial Coding Fraction: 0.96875    [ including projection effects ]

  Duration
     T90: 139.407999992371 +/- 21.5133887433406
        Measured from: -24.1240000724792
                   to: 115.283999919891     [s; relative to TRIGTIME]
     T50: 70 +/- 6.48419902027476
        Measured from: 4.10399997234344
                   to: 74.1039999723434     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2.68400001525879     
                   to: 3.68400001525879     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -40.3359999656677     
                   to: 134.715999960899     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.048811   1.469605   1.083165   0.299598
           0.081799   0.083668   0.074208   0.067354 [error]
 Peak      0.022781   0.021681   0.019738   0.010527
           0.006252   0.006594   0.005778   0.005399 [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 3.20e-07 5.87e-07 8.21e-07 2.42e-06 2.35e-06 4.15e-06   erg/cm2
              Error 3.72e-08 3.99e-08 7.41e-08 4.80e-07 1.76e-07 5.34e-07   erg/cm2
Peak flux Power-law 1.83e-01 1.94e-01 1.45e-01 1.77e-01 5.90e-01 6.99e-01   ph/cm2/s
              Error 9.32e-02 5.55e-02 5.24e-02 1.50e-01 1.53e-01 1.91e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.24e-07 5.81e-07 8.16e-07 2.52e-06 2.38e-06 4.03e-06   erg/cm2
              Error 4.36e-08 6.05e-08 7.42e-08 5.95e-07 1.76e-07 7.61e-07   erg/cm2
Peak flux Cutoff-PL 1.50e-01 8.10e-03 1.47e-04 3.12e-06 1.60e-01 1.61e-01   ph/cm2/s
              Error 1.07e-01 5.27e-02 1.93e-02 1.20e-02 1.51e-01 1.55e-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    1.512    0.123    -      -           1.42e-03 9.54e-05   51.470 57
CPL   1.513    0.132    9999.3    0.0      1.42e-03 3.29e-04   51.480 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.415    0.575    -      -           4.82e-03 1.30e-03   50.120 57
CPL   6.728    2.785     707.1  102.2      1.66e-05 7.46e-04   45.090 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: 153.792000 sec.
T50 in the 50-300 keV band: 84.992000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  175.052  -40.336  134.716
T90   139.408  -24.124  115.284
T50    70.000    4.104   74.104
Peak    1.000    2.684    3.684

Click here for the BAT GCN circular template

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

Special notes of this burst

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  328.0969    43.5446   0.0119    21.5099   -11.1749         2.2510730     16.231 TRIG_01031636                 
 
Foreground time interval of the image:
-40.336  57.293 (delta_t =  97.629 [sec])
Background time interval of the image:
-239.008 -40.336 (delta_t = 198.672 [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  -40.336 sec. to  134.716 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.51184     ( -0.122282   0.12302 )
Norm@50keV  : 1.42022E-03    ( -9.56811e-05   9.51783e-05 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   51.47     using 59 bins.
 Reduced chi-squared = 0.902982
# Null hypothesis probability of 6.82e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 175.1 sec: 0.177875 ( -0.0118  0.011821 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.35492e-06 ( -1.75273e-07  1.76919e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -40.336 sec. to  134.716 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.51258     ( -0.143437   0.120929 )
Epeak [keV] : 9999.34      ( -9999.36 -9999.36 )
Norm@50keV  : 1.42175E-03    ( -9.45419e-05   0.000562465 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   51.48     using 59 bins.
 Reduced chi-squared = 0.919286
# Null hypothesis probability of 6.46e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 175.1 sec: 0.178598 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.3829e-06 ( -2.05562e-07  1.45443e-07 ) ergs/cm2

Band function

Time interval is from  -40.336 sec. to  134.716 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]    : 14.6716  (  )
R^2/D10^2   : 2.07849E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  127.70     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.45e-07 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.646e-07   2.159e-08
25- 50  6.405e-07   6.242e-08
50-150  9.289e-07   1.296e-07
15-150  1.734e-06   1.513e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-42.5047      -200)
Norm        : 0.721253       (-0.0468437     0.0468437)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   54.59     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 5.66e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.153e-07   2.381e-08
25- 50  6.065e-07   5.104e-08
50-150  1.330e-06   3.753e-07
15-150  2.252e-06   3.669e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.84682        (-1.12569      1.2757)
R1^2/D10^2  : 0.220897        (-0.0988783      0.204422)
kT2 [keV]   : 31.2109        (-6.31562      11.3854)
R2^2/D10^2  : 1.30953E-03    (-0.000795846   0.00147091)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   49.88     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.70e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.186e-07   7.188e-08
25- 50  5.868e-07   1.206e-07
50-150  1.503e-06   5.487e-07
15-150  2.409e-06   6.912e-07

Peak spectrum fit

Power-law model

Time interval is from    2.684 sec. to    3.684 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41541     ( -0.568426   0.581881 )
Norm@50keV  : 4.82449E-03    ( -0.0013358   0.00126298 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   50.12     using 59 bins.
 Reduced chi-squared = 0.879298
# Null hypothesis probability of 7.29e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.589598 ( -0.152693  0.152804 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.64879e-08 ( -1.43557e-08  1.46879e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    2.684 sec. to    3.684 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 6.72769     ( -4.23791   1.33178 )
Epeak [keV] : 707.136      ( -66.8945 137.599 )
Norm@50keV  : 1.65726E-05    ( -1.59042e-05   0.00147647 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.09     using 59 bins.
 Reduced chi-squared = 0.805179
# Null hypothesis probability of 8.52e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.159947 ( -0.110981  0.190297 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.07783e-08 ( -1.93519e-08  -2.8479e-09 ) ergs/cm2

Band function

Time interval is from    2.684 sec. to    3.684 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]    : 16.4550  (-6.0659  18.1974)
R^2/D10^2   : 4.53729E-02  (-0.0433775   0.168824)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.19     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.96e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.523e-09   1.598e-09
25- 50  1.087e-08   6.395e-09
50-150  2.079e-08   1.379e-08
15-150  3.419e-08   2.092e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-119.833      -199.363)
Norm        : 2.38786       (-0.615619     0.615611)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   51.37     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.85e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.946e-09   3.528e-09
25- 50  1.144e-08   6.650e-09
50-150  2.508e-08   1.527e-08
15-150  4.247e-08   2.518e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 2.94385        (-2.67065      6.81325)
R1^2/D10^2  : 40.3885        (-35.4605      -35.6629)
kT2 [keV]   : 32.6166        (-17.8851      -33.3941)
R2^2/D10^2  : 4.99692E-03    (-0.00429879   0.0600628)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   48.15     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.32e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.497e-09   4.248e-09
25- 50  5.943e-09   3.312e-09
50-150  3.640e-08   2.288e-08
15-150  4.984e-08   2.808e-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: 1.42413     ( -0.154182   0.154414 )
Norm@50keV  : 1.52281E-03    ( -0.000127436   0.00012687 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   57.05     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.73e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 97.63 sec: 0.186490 ( -0.0155752  0.0156132 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.42966e-06 ( -1.34428e-07  1.35707e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.25218     ( -0.160826   0.155696 )
Epeak [keV] : 90.3450      ( -9999.36 -9999.36 )
Norm@50keV  : 5.50738E-04    ( -0.000250721   0.000226497 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   56.44     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.58e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 97.63 sec: 0.186727 ( -0.01641  0.015349 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.42144e-06 ( -1.27104e-07  1.40607e-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)  = 5.87e-07
S(50-100 keV) = 8.21e-07

T90 vs. Hardness ratio plot

T90                                   = 139.407999992371 sec.
Hardness ratio (energy fluence ratio) = 1.39864

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.40121
Count Ratio (50-100 keV) / (15-25 keV) = 1.03276

Mask shadow pattern

IMX = 3.866379967327187E-01, IMY = 7.638013210396750E-02

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:
-239.008000 -40.336000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.6700  35.2188    7.0  44.0  -23.2   0.6670   1.7    4.0	Cyg X-1                       
308.1340  40.9215    3.0  36.2  -17.0   1.1080   3.9    2.2	Cyg X-3                       
326.3936  38.3698    7.5  22.5  -25.2   0.3328   1.5   10.8	Cyg X-2                       
 49.0542  53.8735    2.8  40.9   98.3   3.5933   4.2 ------	UNKNOWN                       
  6.5704  59.5820    2.1  24.4   65.8   1.4445   5.5 ------	UNKNOWN                       
291.1540  46.0216    3.4  47.5   -6.3   1.3583   3.4 ------	UNKNOWN                       
281.8817  31.5664    2.8  59.1  -20.3   5.2325   4.2 ------	UNKNOWN                       
289.2255  26.9215    2.5  55.5  -28.6   4.9179   4.6 ------	UNKNOWN                       
  8.5269 -17.1807    3.6  55.2 -144.9   4.9061   3.2 ------	UNKNOWN                       
312.8099  12.5076    2.9  44.5  -60.2   3.6711   4.0 ------	UNKNOWN

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

Time interval of the image:
-40.336000 57.292580
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.4233  35.3493    7.3  44.2  -22.9   0.4013   1.6   12.1	Cyg X-1                       
307.9276  40.8562   13.0  36.4  -17.1  -0.1676  -0.9   10.1	Cyg X-3                       
326.3542  38.2832   10.4  22.6  -25.4  -0.1644  -1.1    8.9	Cyg X-2                       
 22.5569  76.9688    2.1  42.4   60.2   3.5509   5.6 ------	UNKNOWN                       
328.0969  43.5445    0.7  21.5  -11.2   2.2511  16.2 ------	UNKNOWN                       
  9.9121   3.5718    2.1  35.7 -155.3   0.9959   5.6 ------	UNKNOWN                       
354.0995   0.2152    2.6  36.2 -127.7   1.0314   4.5  354.3	UNKNOWN                       
 11.9137 -12.7231    2.6  51.7 -150.3   1.8355   4.5 ------	UNKNOWN                       
304.3752  16.5537    2.4  48.6  -49.0   3.2107   4.9 ------	UNKNOWN                       
318.0001   9.5979    2.1  42.7  -68.3   2.9940   5.6 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
105.492600 963.008800
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.3073  35.2747    6.5  55.7   13.7  -7.5552  -2.0    8.4	Her X-1                       
288.8953  10.9280    7.8  47.0  -36.7   2.1227   1.5    5.8	GRS 1915+105                  
299.6022  35.1959    1.0  23.4  -16.0   7.4406  12.0    0.7	Cyg X-1                       
308.1126  40.9803    1.9  15.0   -7.8   4.5811   6.2    1.7	Cyg X-3                       
326.1356  38.3106    4.7   5.4  -78.5   1.4511   2.5    1.8	Cyg X-2                       
 40.1011  42.2262    3.1  51.0  150.1  10.5043   3.8 ------	UNKNOWN                       
252.3531  37.6089    3.3  55.8   17.1  11.0991   3.5 ------	UNKNOWN

Plot creation:
Sun Nov 13 11:50:59 EST 2022