batgrbproduct analysis for trigger=957271

batgrbproduct Analysis for Trigger=957271

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 14:43:00 EDT 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger957271
======================================================================

  Trigger: 00957271      Segment: 000

  BAT Trigger Time: 603790633.6   [s; MET]
      Trigger Stop: 603790633.856   [s; MET]
               UTC: 2020-02-19T07:36:49.139100    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 342.644409036627   Dec: -59.1083992201985  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    13.23
     Image Trigger?:     NO
     Rate S/N Ratio:     97.4320275884681  [ if not an image trigger ]
     Image S/N Ratio:    13.23

  Flight Position:   [ source = BAT ]
    RA: 342.644409036627   Dec: -59.1083992201985  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 342.594694865084   Dec: -59.1012457317369  [deg; J2000]  
        { 22h 50m 22.7s , -59d 06' 04.5" }
         +/- 2.3689526956136 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.07910232751214 [arcmin] (formal 1-sigma fit error)
    SNR: 8.8723328216173
 
  Angular difference between Flight and Ground position is 1.590605 arcmin
 
  Partial Coding Fraction: 0.9921875    [ including projection effects ]

  Duration
     T90: 288 +/- 50.5964425626941
        Measured from: -15.6000000238419
                   to: 272.399999976158     [s; relative to TRIGTIME]
     T50: 144 +/- 50.5964425626941
        Measured from: 0.399999976158142
                   to: 144.399999976158     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -8.10000002384186     
                   to: -7.10000002384186     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.6000000238419     
                   to: 304.399999976158     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.481958   0.818164   0.553697   0.172386
           0.101575   0.103531   0.089510   0.078650 [error]
 Peak     -0.004904   0.006953  -0.005834   0.000983
           0.005995   0.005853   0.005085   0.004551 [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 1.59e-07 3.03e-07 4.45e-07 1.40e-06 1.26e-06 2.31e-06   erg/cm2
              Error 3.90e-08 4.58e-08 8.54e-08 5.80e-07 2.08e-07 6.47e-07   erg/cm2
Peak flux Power-law 3.62e-10 5.82e-10 8.99e-08 1.70e-05 4.47e-09 3.91e-06   ph/cm2/s
              Error 2.66e-02 1.71e-02 1.36e-02 1.83e-01 5.08e-02 1.89e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.43e-07 3.23e-07 4.61e-07 5.66e-07 1.19e-06 1.49e-06   erg/cm2
              Error 4.86e-08 5.96e-08 9.46e-08 7.14e-07 2.37e-07 8.79e-07   erg/cm2
Peak flux Cutoff-PL 1.87e-02 4.71e-02 7.16e-04 4.03e-09 5.96e-02 6.17e-02   ph/cm2/s
              Error 3.77e-02 5.44e-02 1.26e-02 -------- 8.29e-02 8.29e-02   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    1.444    0.253    -      -           4.11e-04 6.08e-05    0.000  0
CPL   0.796    1.220      92.3  -28.4      8.75e-04 2.30e-03    0.000  0
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.500    0.000    -      -           0.00e+00 4.02e-04    0.000  0
CPL   1.000    0.000      80.0    0.0      0.00e+00 0.00e+00    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: 0.512000 sec.
T50 in the 50-300 keV band: 0.256000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  320.000  -15.600  304.400
T90   288.000  -15.600  272.400
T50   144.000    0.400  144.400
Peak    1.000   -8.100   -7.100

Click here for the BAT GCN circular template

Special notes of this burst

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
  342.5947   -59.1012   0.0218    17.4796    -0.9238         0.5972333      8.872 TRIG_00957271                 
 
Foreground time interval of the image:
-15.600  15.501 (delta_t =  31.101 [sec])
Background time interval of the image:
-116.099 -15.600 (delta_t = 100.499 [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 0.256000

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 0.256000

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 0.256000

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  -15.600 sec. to  304.400 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44423     ( -0.251554   0.254625 )
Norm@50keV  : 4.10939E-04    ( -6.1078e-05   6.06002e-05 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 320 sec: 5.05716E-02 ( -0.0073815  0.0073931 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.25988e-06 ( -2.06465e-07  2.09721e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -15.600 sec. to  304.400 sec.
 XSPEC: quit
 
 
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.795898     ( -1.51618   0.923494 )
Epeak [keV] : 92.2716      ( -35.3773 -92.2445 )
Norm@50keV  : 8.74891E-04    ( -0.000512772   0.00408932 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 320 sec: 4.90771E-02 ( -0.007987  0.0078622 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.19498e-06 ( -2.36329e-07  2.38165e-07 ) ergs/cm2

Band function

Time interval is from  -15.600 sec. to  304.400 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]    : 14.9580  (-2.26465  2.85171)
R^2/D10^2   : 5.93928E-03  (-0.00272634   0.0046467)
(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  8.907e-08   2.283e-08
25- 50  3.530e-07   9.426e-08
50-150  5.368e-07   1.568e-07
15-150  9.789e-07   2.224e-07

Thermal bremsstrahlung (OTTB)

XSPEC12>/*
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-80.8921      -199.363)
Norm        : 0.207902       (-0.029859     0.029859)
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.657e-07   9.411e-08
25- 50  3.187e-07   1.813e-07
50-150  6.989e-07   3.958e-07
15-150  1.183e-06   6.592e-07

Double BB

XSPEC12>/*
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.65072        (-1.18438      1.59001)
R1^2/D10^2  : 122.111        (-153.448      -154.322)
kT2 [keV]   : 16.2828        (-2.63287      3.5222)
R2^2/D10^2  : 4.25829E-03    (-0.00214996   0.00374123)
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.317e-07   4.360e-08
25- 50  3.183e-07   1.005e-07
50-150  5.927e-07   1.940e-07
15-150  1.043e-06   2.720e-07

Peak spectrum fit

Power-law model

Time interval is from   -8.100 sec. to   -7.100 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.50000     ( -1.5   -1.5 )
Norm@50keV  : 0.0    ( 0   0.000803549 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 1 sec: 4.47484E-09 ( -4.47484e-09  0.10162 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.00231e-30 ( 1  8.78658e-09 ) ergs/cm2

Cutoff power-law model

Time interval is from   -8.100 sec. to   -7.100 sec.
 XSPEC: quit
 
 
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     ( -1   -1 )
Epeak [keV] : 80.0000      ( -80 -80 )
Norm@50keV  : 0.0    (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 1 sec: 5.95983E-02 ( -0.0595983  0.106183 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.0074e-30 ( 1  7.97793e-09 ) ergs/cm2

Band function

Time interval is from   -8.100 sec. to   -7.100 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]    : 5.00000  (-5  -5)
R^2/D10^2   : 0.0  (0   0)
(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  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00

Thermal bremsstrahlung (OTTB)

XSPEC12>/*
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 7.00000       (-7      -7)
Norm        : 0.0       (0     0)
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00

Double BB

XSPEC12>/*
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.00000        (-4      -4)
R1^2/D10^2  : 0.0        (0      0)
kT2 [keV]   : 7.75413        (-7.82831      -7.82831)
R2^2/D10^2  : 1.63998E-02    (-0.0147932   -0.0147932)
------------------------------------------------------------
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00

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: 1.25433     ( -0.311591   0.301252 )
Norm@50keV  : 1.20606E-03    ( -0.000202819   0.000202795 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 31.1 sec: 0.142744 ( -0.0248547  0.0249688 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.74954e-07 ( -6.96242e-08  7.05404e-08 ) ergs/cm2

Cutoff power-law model

 XSPEC: quit
 
 
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18901     ( -1.20185   2.75317 )
Epeak [keV] : 635.618      ( -9995.39 -9995.39 )
Norm@50keV  : 1.29931E-03    ( -0.000203699   0.00321931 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 31.1 sec: 0.142795 ( -0.025158  0.024715 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.74665e-07 ( -7.46378e-08  7.03886e-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)  = 3.03e-07
S(50-100 keV) = 4.45e-07

T90 vs. Hardness ratio plot

T90                                   = 288 sec.
Hardness ratio (energy fluence ratio) = 1.46865

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.69758
Count Ratio (50-100 keV) / (15-25 keV) = 1.14885

Mask shadow pattern

IMX = 3.148667134259973E-01, IMY = 5.077342664083662E-03

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.256000

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:
-116.099370 -15.600000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
255.9839 -37.8465    1.2  39.8  160.5   2.4722   9.7    0.2	4U 1700-377                   
256.5427 -36.3191    7.0  40.6  162.7   0.4390   1.7    8.1	GX 349+2                      
263.1956 -24.8126    0.0  46.0  179.7  -0.0159  -0.1   10.9	GX 1+4                        
264.6734 -44.5274   11.8  30.5  159.6   0.1735   1.0    5.5	4U 1735-44                    
270.4072 -25.1816  338.2  42.2 -172.7  -0.0075  -0.0    9.1	GX 5-1                        
270.3988 -25.7777    5.3  41.7 -173.2   0.4648   2.2    5.6	GRS 1758-258                  
273.9916 -14.0713    4.7  50.4 -161.3   0.8903   2.4    2.3	GX 17+2                       
276.0750 -30.4165    4.1  35.1 -170.4   0.4569   2.8    8.3	H1820-303                     
284.9486 -24.7951    9.8  36.4 -153.9  -0.1979  -1.2    8.9	HT1900.1-2455                 
263.0852 -33.7369    3.6  39.0  171.6  -0.6735  -3.2    7.6	GX 354-0                      
 18.1480 -80.1137    2.5  31.2   48.5   0.8795   4.5 ------	UNKNOWN                       
333.7285 -46.6250    2.7  17.6  -47.0   0.5455   4.3 ------	UNKNOWN                       
264.4000 -12.0755    2.5  56.4 -170.6   2.8563   4.7 ------	UNKNOWN                       
295.1485  -7.9692    2.6  49.7 -133.0   3.0398   4.5 ------	UNKNOWN

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

Time interval of the image:
-15.600000 15.500590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
255.8468 -37.7380    9.2  40.0  160.5   0.1501   1.2    9.2	4U 1700-377                   
256.5041 -36.5610    5.4  40.4  162.4   0.2606   2.1    8.9	GX 349+2                      
262.9388 -24.6819    5.3  46.3  179.5  -0.3300  -2.2    5.4	GX 1+4                        
264.8801 -44.5201    8.1  30.4  159.8  -0.1210  -1.4    7.2	4U 1735-44                    
270.1528 -25.1129   10.9  42.4 -173.0  -0.1148  -1.1    7.4	GX 5-1                        
270.4376 -25.7112   22.4  41.7 -173.1  -0.0567  -0.5    7.5	GRS 1758-258                  
274.1466 -14.0107    3.7  50.4 -161.1  -0.5591  -3.1    8.3	GX 17+2                       
275.7169 -30.3239   94.4  35.3 -170.7   0.0117   0.1   11.1	H1820-303                     
284.9016 -24.8373   36.2  36.3 -154.0   0.0303   0.3    8.9	HT1900.1-2455                 
262.8258 -33.8324   36.4  39.0  171.2   0.0344   0.3    8.1	GX 354-0                      
 46.2839 -54.2479    2.2  50.2   17.3   1.0545   5.2 ------	UNKNOWN                       
342.5943 -59.1018    1.3  17.5   -0.9   0.5988   8.9 ------	UNKNOWN                       
357.6837 -21.8645    2.2  49.0  -48.1   1.5445   5.2 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
56.700590 962.448000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
255.9485 -37.8477    3.3  56.6  174.7  11.3776   3.5    1.8	4U 1700-377                   
264.9785 -44.5042    0.0  47.2  175.7   2.7241   1.7   10.6	4U 1735-44                    
276.1613 -30.3641    0.0  52.4 -163.5  -1.2591  -0.7   12.2	H1820-303                     
285.0631 -24.9402    5.0  52.3 -151.4   4.6301   2.3    1.9	HT1900.1-2455                 
262.9451 -33.9184    4.8  56.3 -177.1  -7.5956  -2.4    5.5	GX 354-0                      
255.2001 -38.1348    2.3  56.8  173.9  16.1175   5.1 ------	UNKNOWN                       
279.6192 -51.7113    3.7  35.1  177.6   2.8342   3.2 ------	UNKNOWN                       
264.0837 -32.5222    2.7  56.8 -175.2  12.4080   4.3 ------	UNKNOWN                       
299.0252 -28.8309    3.2  42.3 -139.9   4.2953   3.6 ------	UNKNOWN                       
303.3843 -20.1779    2.3  48.0 -129.1  14.2438   5.0 ------	UNKNOWN

Plot creation:
Mon Jun  1 00:27:50 EDT 2020