batgrbproduct analysis for trigger=291614

batgrbproduct Analysis for Trigger=291614

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 Jan 20 07:16:23 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger291614
======================================================================

  Trigger: 00291614      Segment: 000

  BAT Trigger Time: 211953616   [s; MET]
      Trigger Stop: 211953680   [s; MET]
               UTC: 2007-09-20T04:00:13.763940    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 100.932293960004   Dec: 72.2273663433026  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.26
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    10.26

  Flight Position:   [ source = BAT ]
    RA: 100.932293960004   Dec: 72.2273663433026  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 100.971964315622   Dec: 72.242209888389  [deg; J2000]  
        { 06h 43m 53.3s , +72d 14' 32.0" }
         +/- 1.93229129482644 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.17504729485443 [arcmin] (formal 1-sigma fit error)
    SNR: 11.8697956148075
 
  Angular difference between Flight and Ground position is 1.149184 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 55.7600000202656 +/- 5.28902259694316
        Measured from: 16.8799999952316
                   to: 72.6400000154972     [s; relative to TRIGTIME]
     T50: 32.3160000145435 +/- 10.9756566778799
        Measured from: 24.136000007391
                   to: 56.4520000219345     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 30.4519999921322     
                   to: 31.4519999921322     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 15.1800000071526     
                   to: 74.8160000145435     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.286194   0.357491   0.205800   0.036111
           0.035464   0.036964   0.032266   0.027751 [error]
 Peak      0.012542   0.019671   0.011123   0.004176
           0.004671   0.004768   0.004208   0.003564 [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 7.75e-08 1.34e-07 1.76e-07 4.71e-07 5.15e-07 8.58e-07   erg/cm2
              Error 1.43e-08 1.59e-08 3.09e-08 1.71e-07 7.33e-08 1.99e-07   erg/cm2
Peak flux Power-law 1.35e-01 1.15e-01 6.78e-02 5.95e-02 3.44e-01 3.77e-01   ph/cm2/s
              Error 5.82e-02 3.59e-02 3.21e-02 5.45e-02 1.07e-01 1.22e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.37e-08 1.41e-07 1.77e-07 2.24e-07 4.92e-07 6.16e-07   erg/cm2
              Error 1.59e-08 2.10e-08 3.34e-08 2.53e-07 8.34e-08 3.10e-07   erg/cm2
Peak flux Cutoff-PL 1.17e-01 1.34e-01 6.96e-02 1.58e-02 3.33e-01 3.37e-01   ph/cm2/s
              Error 6.60e-02 4.78e-02 3.93e-02 3.30e-02 1.07e-01 1.18e-01   ph/cm2/s
 
Fluence        Band 7.18e-08 1.45e-07 1.70e-07 3.47e-07 4.95e-07 7.41e-07   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- 3.49e-01   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    1.604    0.210    -      -           9.23e-04 1.20e-04   34.060 57
CPL   1.156    0.693      85.9  -22.6      1.62e-03 2.28e-03   33.120 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.769    0.549    -      -           2.52e-03 9.36e-04   55.010 57
CPL   0.523    2.417      52.0    0.0      1.26e-02 5.09e-01   53.860 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: 8.832000 sec.
T50 in the 50-300 keV band: 5.248000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   59.636   15.180   74.816
T90    55.760   16.880   72.640
T50    32.316   24.136   56.452
Peak    1.000   30.452   31.452

Click here for the BAT GCN circular template

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  100.9720    72.2422   0.0161    14.3977  -153.4907         0.8539508     11.870 TRIG_00291614                 
 
Foreground time interval of the image:
 15.180  74.816 (delta_t =  59.636 [sec])
Background time interval of the image:
-239.000  15.180 (delta_t = 254.180 [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 64.000000

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 64.000000

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 64.000000

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   15.180 sec. to   74.816 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.60367     ( -0.207089   0.21286 )
Norm@50keV  : 9.23291E-04    ( -0.000121303   0.000119317 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          34.06 using 59 PHA bins.
# Reduced chi-squared =         0.5975 for     57 degrees of freedom 
# Null hypothesis probability =   9.931980e-01
 
Photon flux (15-150 keV)    in 59.64 sec: 0.118782 ( -0.0140915  0.0140954 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.14747e-07 ( -7.25336e-08  7.39965e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   15.180 sec. to   74.816 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.15647     ( -0.957304   0.429555 )
Epeak [keV] : 85.9279      ( -40.7285 -85.9279 )
Norm@50keV  : 1.62044E-03    ( -0.000793687   0.00376114 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.12 using 59 PHA bins.
# Reduced chi-squared =         0.5914 for     56 degrees of freedom 
# Null hypothesis probability =   9.936149e-01
 
Photon flux (15-150 keV)    in 59.64 sec: 0.116681 ( -0.014588  0.014556 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.91861e-07 ( -8.27821e-08  8.39516e-08 ) ergs/cm2

Band function

Time interval is from   15.180 sec. to   74.816 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.15627   ( -0.462147   0.910331 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 85.9010      ( -34.0576 -85.901 )
Norm@50keV   : 1.62062E-03    ( -0.000794049   0.00376238 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.12 using 59 PHA bins.
# Reduced chi-squared =         0.6022 for     55 degrees of freedom 
# Null hypothesis probability =   9.914959e-01
 
Photon flux (15-150 keV)    in 59.64 sec: 0.116658 ( 6.88334  -0.014467 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.95291e-07 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.3666  (-1.74286  2.1422)
R^2/D10^2   : 2.62555E-02  (-0.0114735   0.0192339)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.68 using 59 PHA bins.
# Reduced chi-squared =         0.8190 for     57 degrees of freedom 
# Null hypothesis probability =   8.334698e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.075e-08   1.218e-08
25- 50  1.654e-07   2.708e-08
50-150  1.551e-07   4.333e-08
15-150  3.712e-07   6.203e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 167.065       (-75.0781      -165.822)
Norm        : 0.488169       (-0.0600146     0.0764902)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.17 using 59 PHA bins.
# Reduced chi-squared =         0.5820 for     57 degrees of freedom 
# Null hypothesis probability =   9.951485e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.403e-08   4.038e-08
25- 50  1.393e-07   7.500e-08
50-150  2.869e-07   1.611e-07
15-150  5.002e-07   2.737e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.58153        (-2.86985      2.6493)
R1^2/D10^2  : 0.105294        (-0.0617487      0.366039)
kT2 [keV]   : 27.4727        (-10.8403      46.0512)
R2^2/D10^2  : 1.06151E-03    (-0.000959478   0.00385154)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          32.93 using 59 PHA bins.
# Reduced chi-squared =         0.5987 for     55 degrees of freedom 
# Null hypothesis probability =   9.920854e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.041e-08   4.047e-08
25- 50  1.463e-07   7.774e-08
50-150  2.786e-07   1.543e-07
15-150  4.952e-07   2.554e-07

Peak spectrum fit

Power-law model

Time interval is from   30.452 sec. to   31.452 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.76938     ( -0.511168   0.587009 )
Norm@50keV  : 2.52230E-03    ( -0.000957075   0.000914477 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.01 using 59 PHA bins.
# Reduced chi-squared =         0.9651 for     57 degrees of freedom 
# Null hypothesis probability =   5.501029e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.343527 ( -0.106788  0.106789 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.32522e-08 ( -8.58463e-09  9.1564e-09 ) ergs/cm2

Cutoff power-law model

Time interval is from   30.452 sec. to   31.452 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.523380     ( -3.1916   1.6432 )
Epeak [keV] : 51.9916      ( -52.0232 -52.0232 )
Norm@50keV  : 1.25973E-02    ( -0.0125598   1.0048 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.86 using 59 PHA bins.
# Reduced chi-squared =         0.9618 for     56 degrees of freedom 
# Null hypothesis probability =   5.561865e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.333215 ( -0.106204  0.107331 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.11998e-08 ( -8.1804e-09  9.5939e-09 ) ergs/cm2

Band function

Time interval is from   30.452 sec. to   31.452 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.736020   ( -6.19001   -4.19001 )
beta        : -9.37167    ( -1.83153   0.793699 )
Epeak [keV] : 55.1065      ( -37.7276 -55.0881 )
Norm@50keV   : 9.40797E-03    ( -0.0094158   585971 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.89 using 59 PHA bins.
# Reduced chi-squared =         0.9799 for     55 degrees of freedom 
# Null hypothesis probability =   5.169096e-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]    : 11.7287  (-3.96599  5.71358)
R^2/D10^2   : 9.44291E-02  (-0.0939732   0.326311)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.34 using 59 PHA bins.
# Reduced chi-squared =         0.9708 for     57 degrees of freedom 
# Null hypothesis probability =   5.376935e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.741e-09   1.734e-09
25- 50  8.396e-09   5.150e-09
50-150  6.837e-09   5.040e-09
15-150  1.797e-08   1.105e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 95.3911       (-58.2827      -95.3736)
Norm        : 1.56172       (-0.535585     0.852869)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.23 using 59 PHA bins.
# Reduced chi-squared =         0.9515 for     57 degrees of freedom 
# Null hypothesis probability =   5.795325e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.080e-09   2.475e-09
25- 50  6.987e-09   4.345e-09
50-150  1.102e-08   8.740e-09
15-150  2.209e-08   1.543e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.77575        (-5.76867      -5.76867)
R1^2/D10^2  : 0.689169        (-0.691606      -0.691606)
kT2 [keV]   : 17.6952        (-17.673      -17.673)
R2^2/D10^2  : 1.58939E-02    (-0.0160188   0.19421)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.45 using 59 PHA bins.
# Reduced chi-squared =         0.9718 for     55 degrees of freedom 
# Null hypothesis probability =   5.339954e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.888e-09   2.418e-09
25- 50  7.220e-09   4.121e-09
50-150  1.055e-08   6.445e-09
15-150  2.166e-08   1.177e-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: 1.60367     ( -0.207089   0.21286 )
Norm@50keV  : 9.23291E-04    ( -0.000121303   0.000119317 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          34.06 using 59 PHA bins.
# Reduced chi-squared =         0.5975 for     57 degrees of freedom 
# Null hypothesis probability =   9.931980e-01
 
Photon flux (15-150 keV)    in 59.64 sec: 0.118782 ( -0.0140915  0.0140954 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.14747e-07 ( -7.25336e-08  7.39965e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.15647     ( -0.957304   0.429555 )
Epeak [keV] : 85.9279      ( -40.7285 -85.9279 )
Norm@50keV  : 1.62044E-03    ( -0.000793687   0.00376114 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.12 using 59 PHA bins.
# Reduced chi-squared =         0.5914 for     56 degrees of freedom 
# Null hypothesis probability =   9.936149e-01
 
Photon flux (15-150 keV)    in 59.64 sec: 0.116681 ( -0.014588  0.014556 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.91861e-07 ( -8.27821e-08  8.39516e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.15627   ( -0.462147   0.910331 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 85.9010      ( -34.0576 -85.901 )
Norm@50keV   : 1.62062E-03    ( -0.000794049   0.00376238 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.12 using 59 PHA bins.
# Reduced chi-squared =         0.6022 for     55 degrees of freedom 
# Null hypothesis probability =   9.914959e-01
 
Photon flux (15-150 keV)    in 59.64 sec: 0.116658 ( 6.88334  -0.014467 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.95291e-07 ( 0  0 ) ergs/cm2

S(25-50 keV) vs. S(50-100 keV) plot

S(25-50 keV)  = 1.34e-07
S(50-100 keV) = 1.76e-07

T90 vs. Hardness ratio plot

T90                                   = 55.7600000202656 sec.
Hardness ratio (energy fluence ratio) = 1.31343

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.24912
Count Ratio (50-100 keV) / (15-25 keV) = 0.719093

Mask shadow pattern

IMX = -2.297229043253134E-01, IMY = 1.145821390813567E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

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:
-239.000000 15.180000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6293  22.0143    0.3  37.1   12.1  10.7189  43.3    0.2	Crab

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

Time interval of the image:
15.180000 74.816000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.5906  21.8758    4.5  37.3   12.2  -0.3021  -2.6    8.7	Crab                          
 42.8649  32.4538    1.8  39.1   74.7   1.8702   6.4 ------	UNKNOWN                       
345.6086  73.4808    2.4  37.3  160.7   0.5617   4.9 ------	UNKNOWN                       
333.5373  79.1592    2.1  36.3  171.2   0.5315   5.5 ------	UNKNOWN                       
100.9719  72.2423    1.0  14.4 -153.5   0.8550  11.9 ------	UNKNOWN                       
129.9640  38.1034    2.2  34.8  -64.4   0.6259   5.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
384.400590 963.078800
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6304  22.0097    0.3  36.7   38.3  23.5197  36.2    0.3	Crab                          
107.8166  69.1893    2.4  19.1  161.6   1.5624   4.8 ------	UNKNOWN                       
123.8451  -7.8927    3.6  58.9  -24.2   7.7268   3.2 ------	UNKNOWN                       
137.9677   3.9832    3.0  50.7  -44.5   7.8491   3.8 ------	UNKNOWN                       
136.7151   2.2464    4.2  51.9  -42.3   5.4485   2.8 ------	UNKNOWN

Plot creation:
Sun May 31 09:16:22 EDT 2015