batgrbproduct analysis for trigger=611933

batgrbproduct Analysis for Trigger=611933

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): Sat Oct  4 20:43:27 EDT 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger611933
======================================================================

  Trigger: 00611933      Segment: 000

  BAT Trigger Time: 431798841.344   [s; MET]
      Trigger Stop: 431798842.368   [s; MET]
               UTC: 2014-09-07T16:07:08.847220    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 48.1471898036904   Dec: 46.5950777481444  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.32
     Image Trigger?:     NO
     Rate S/N Ratio:     8.66025403784439  [ if not an image trigger ]
     Image S/N Ratio:    7.32

  Flight Position:   [ source = BAT ]
    RA: 48.1471898036904   Dec: 46.5950777481444  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 48.1307777652394   Dec: 46.5969596111044  [deg; J2000]  
        { 03h 12m 31.4s , +46d 35' 49.1" }
         +/- 1.27286921916771 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.366429682612389 [arcmin] (formal 1-sigma fit error)
    SNR: 21.5490068604448
 
  Angular difference between Flight and Ground position is 0.685996 arcmin
 
  Partial Coding Fraction: 0.65625    [ including projection effects ]

  Duration
     T90: 80 +/- 35.7770876399966
        Measured from: -63.3439999818802
                   to: 16.6560000181198     [s; relative to TRIGTIME]
     T50: 16 +/- 16
        Measured from: 0.656000018119812
                   to: 16.6560000181198     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 8.15600001811981     
                   to: 9.15600001811981     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -95.3439999818802     
                   to: 48.6560000181198     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.014879   2.746206   1.932812   0.480167
           0.081574   0.085266   0.075033   0.064631 [error]
 Peak      0.041944   0.064708   0.065445   0.006884
           0.007739   0.008233   0.007629   0.006162 [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 7.14e-07 1.20e-06 1.52e-06 3.89e-06 4.51e-06 7.33e-06   erg/cm2
              Error 4.91e-08 4.83e-08 7.63e-08 4.29e-07 1.82e-07 4.80e-07   erg/cm2
Peak flux Power-law 4.56e-01 5.09e-01 4.06e-01 5.38e-01 1.57e+00 1.91e+00   ph/cm2/s
              Error 1.04e-01 7.26e-02 6.08e-02 1.66e-01 2.04e-01 2.49e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.83e-07 1.22e-06 1.55e-06 2.79e-06 4.44e-06 6.24e-06   erg/cm2
              Error 6.09e-08 5.57e-08 8.20e-08 9.70e-07 2.05e-07 9.45e-07   erg/cm2
Peak flux Cutoff-PL 3.82e-01 5.38e-01 4.41e-01 2.65e-01 1.52e+00 1.63e+00   ph/cm2/s
              Error 1.29e-01 8.40e-02 7.43e-02 -------- 2.12e-01 2.37e-01   ph/cm2/s
 
Fluence        Band 6.64e-07 1.23e-06 1.52e-06 3.43e-06 4.43e-06 6.86e-06   erg/cm2
              Error -------- 6.41e-08 -------- -------- 2.02e-07 --------   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    1.650    0.070    -      -           3.37e-03 1.29e-04   39.050 57
CPL   1.422    0.273     129.6  -41.9      4.36e-03 1.35e-03   37.010 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.325    0.213    -      -           1.31e-02 1.66e-03   59.410 57
CPL   0.539    0.963     100.2  -34.5      3.08e-02 4.09e-02   57.020 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: 23.552000 sec.
T50 in the 50-300 keV band: 10.560000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  144.000  -95.344   48.656
T90    80.000  -63.344   16.656
T50    16.000    0.656   16.656
Peak    1.000    8.156    9.156

Click here for the BAT GCN circular template

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
   48.1308    46.5970   0.0089    36.8949  -161.2651         3.8271016     21.549 TRIG_00611933                 
 
Foreground time interval of the image:
-95.344  12.757 (delta_t = 108.101 [sec])
Background time interval of the image:
-239.344 -95.344 (delta_t = 144.000 [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 1.024000

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 1.024000

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 1.024000

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  -95.344 sec. to   48.656 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.65033     ( -0.0699237   0.0702703 )
Norm@50keV  : 3.37030E-03    ( -0.000129108   0.000128759 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.05 using 59 PHA bins.
# Reduced chi-squared =         0.6851 for     57 degrees of freedom 
# Null hypothesis probability =   9.667498e-01
 
Photon flux (15-150 keV)    in 144 sec: 0.440126 ( -0.017713  0.0177614 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.51354e-06 ( -1.81627e-07  1.82125e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -95.344 sec. to   48.656 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.42189     ( -0.29007   0.255303 )
Epeak [keV] : 129.598      ( -45.7596 -129.6 )
Norm@50keV  : 4.36152E-03    ( -0.00104961   0.00164133 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.01 using 59 PHA bins.
# Reduced chi-squared =         0.6610 for     56 degrees of freedom 
# Null hypothesis probability =   9.764055e-01
 
Photon flux (15-150 keV)    in 144 sec: 0.433517 ( -0.019265  0.019299 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.4371e-06 ( -2.05618e-07  2.04264e-07 ) ergs/cm2

Band function

Time interval is from  -95.344 sec. to   48.656 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.21996   ( 1.17103   1.17103 )
beta        : -1.77821    ( 1.77683   0.160613 )
Epeak [keV] : 78.8426      ( -74.7594 237.408 )
Norm@50keV   : 5.75765E-03    ( -0.00240418   226.368 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          36.39 using 59 PHA bins.
# Reduced chi-squared =         0.6617 for     55 degrees of freedom 
# Null hypothesis probability =   9.750367e-01
 
Photon flux (15-150 keV)    in 144 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.43089e-06 ( -4.42989e-06  -2.03861e-07 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.4889  (  )
R^2/D10^2   : 5.28295E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         189.66 using 59 PHA bins.
# Reduced chi-squared =         3.3274 for     57 degrees of freedom 
# Null hypothesis probability =   3.711598e-16
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.361e-07   2.563e-08
25- 50  1.292e-06   5.789e-08
50-150  1.817e-06   1.411e-07
15-150  3.446e-06   1.440e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 160.996       (-28.2563      -161.476)
Norm        : 1.78377       (-0.0810892     0.0882346)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.69 using 59 PHA bins.
# Reduced chi-squared =         0.6613 for     57 degrees of freedom 
# Null hypothesis probability =   9.773082e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.555e-07   4.212e-08
25- 50  1.227e-06   1.016e-07
50-150  2.492e-06   6.614e-07
15-150  4.375e-06   7.661e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.95751        (-1.03045      1.14047)
R1^2/D10^2  : 0.484920        (-0.191012      0.372927)
kT2 [keV]   : 25.1457        (-3.3882      5.21848)
R2^2/D10^2  : 5.67107E-03    (-0.00283715   0.00423343)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.64 using 59 PHA bins.
# Reduced chi-squared =         0.8117 for     55 degrees of freedom 
# Null hypothesis probability =   8.395316e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.290e-07   8.035e-08
25- 50  1.239e-06   1.129e-07
50-150  2.502e-06   3.334e-07
15-150  4.370e-06   4.874e-07

Peak spectrum fit

Power-law model

Time interval is from    8.156 sec. to    9.156 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.32474     ( -0.212822   0.212526 )
Norm@50keV  : 1.30955E-02    ( -0.00166156   0.00165896 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.41 using 59 PHA bins.
# Reduced chi-squared =          1.042 for     57 degrees of freedom 
# Null hypothesis probability =   3.880181e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.56967 ( -0.204033  0.204534 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.28652e-07 ( -1.78718e-08  1.80082e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    8.156 sec. to    9.156 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.538887     ( -1.07448   0.852047 )
Epeak [keV] : 100.152      ( -31.0664 -100.152 )
Norm@50keV  : 3.08472E-02    ( -0.0182766   0.0634645 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.02 using 59 PHA bins.
# Reduced chi-squared =          1.018 for     56 degrees of freedom 
# Null hypothesis probability =   4.371034e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.51998 ( -0.2127  0.212 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.23625e-07 ( -1.8977e-08  1.9054e-08 ) ergs/cm2

Band function

Time interval is from    8.156 sec. to    9.156 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.540153   ( -0.614929   1.10396 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 100.227      ( -25.7753 -100.227 )
Norm@50keV   : 3.08021E-02    ( -0.0182406   0.0634056 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.02 using 59 PHA bins.
# Reduced chi-squared =          1.037 for     55 degrees of freedom 
# Null hypothesis probability =   4.000227e-01
 
Photon flux (15-150 keV)    in 1 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]    : 17.7741  (-2.52374  3.03376)
R^2/D10^2   : 0.106328  (-0.044107   0.0727316)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.41 using 59 PHA bins.
# Reduced chi-squared =          1.130 for     57 degrees of freedom 
# Null hypothesis probability =   2.332940e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.753e-09   1.717e-09
25- 50  3.093e-08   6.245e-09
50-150  7.070e-08   1.644e-08
15-150  1.084e-07   2.056e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 6.53313       (-0.830592     0.830508)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.39 using 59 PHA bins.
# Reduced chi-squared =          1.077 for     57 degrees of freedom 
# Null hypothesis probability =   3.215870e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.627e-08   9.130e-09
25- 50  3.131e-08   1.723e-08
50-150  6.866e-08   3.780e-08
15-150  1.162e-07   6.380e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.72016        (-3.33812      5.57977)
R1^2/D10^2  : 2.18263        (-1.92311      145.824)
kT2 [keV]   : 22.3249        (-4.62532      13.6804)
R2^2/D10^2  : 4.36060E-02    (-0.036833   0.0582166)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.50 using 59 PHA bins.
# Reduced chi-squared =          1.027 for     55 degrees of freedom 
# Null hypothesis probability =   4.185274e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.283e-08   7.109e-09
25- 50  2.923e-08   1.430e-08
50-150  7.995e-08   4.145e-08
15-150  1.220e-07   5.716e-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: 1.66635     ( -0.110676   0.111906 )
Norm@50keV  : 2.30099E-03    ( -0.000145756   0.000144916 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          35.04 using 59 PHA bins.
# Reduced chi-squared =         0.6147 for     57 degrees of freedom 
# Null hypothesis probability =   9.903129e-01
 
Photon flux (15-150 keV)    in 108.1 sec: 0.302092 ( -0.0188956  0.0189467 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.30969e-06 ( -1.5448e-07  1.5537e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.59871     ( -0.439921   0.446143 )
Epeak [keV] : 292.995      ( -293 -293 )
Norm@50keV  : 2.49164E-03    ( -0.00058157   0.0016325 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          34.96 using 59 PHA bins.
# Reduced chi-squared =         0.6243 for     56 degrees of freedom 
# Null hypothesis probability =   9.876592e-01
 
Photon flux (15-150 keV)    in 108.1 sec: 0.300969 ( -0.019981  0.019318 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.29826e-06 ( -1.72982e-07  1.64852e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.97177   ( -4.97177   -4.97177 )
beta        : -1.68607    ( -0.118299   0.115136 )
Epeak [keV] : 20.0076      ( -20.0076 4.31967 )
Norm@50keV   : 1086.96    ( -65.2317   1.7451e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          34.51 using 59 PHA bins.
# Reduced chi-squared =         0.6274 for     55 degrees of freedom 
# Null hypothesis probability =   9.861859e-01
 
Photon flux (15-150 keV)    in 108.1 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)  = 1.20e-06
S(50-100 keV) = 1.52e-06

T90 vs. Hardness ratio plot

T90                                   = 80 sec.
Hardness ratio (energy fluence ratio) = 1.26667

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.36296
Count Ratio (50-100 keV) / (15-25 keV) = 0.95927

Mask shadow pattern

IMX = -7.109073642563704E-01, IMY = 2.411111187205032E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

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:
-239.344000 -95.344000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
358.7980  16.9125    2.7  40.9  113.8   2.2430   4.3 ------	UNKNOWN                       
 29.5743 -21.5171    3.0  33.5   28.2   0.6824   3.8 ------	UNKNOWN                       
 43.2811  57.4362    3.1  47.2 -168.0   1.0053   3.7 ------	UNKNOWN                       
 53.5895  21.6029    2.8  17.0 -123.5   0.5598   4.2 ------	UNKNOWN                       
 81.5929  41.9568    2.4  47.9 -128.9   3.0697   4.9 ------	UNKNOWN

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

Time interval of the image:
-95.344000 12.756600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 48.1308  46.5970    0.5  36.9 -161.3   3.8275  21.6 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
72.156620 519.756600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6328  22.0234    0.3  37.7  -36.4  18.6209  35.7    0.5	Crab                          
  2.9568  27.0550    4.4  40.4  102.5   4.4690   2.6 ------	UNKNOWN                       
 58.9305   2.2872    2.3  45.3   10.0   3.2380   5.1 ------	UNKNOWN                       
337.3386  68.2832    3.8  40.7  172.8   1.8277   3.0 ------	UNKNOWN                       
261.7502  73.7079    2.3  57.5 -165.4   8.9627   5.1 ------	UNKNOWN                       
142.6123  71.0267    2.4  48.0 -128.9   7.2069   4.8 ------	UNKNOWN

Plot creation:
Sat May 30 12:39:55 EDT 2015