batgrbproduct analysis for trigger=652643

batgrbproduct Analysis for Trigger=652643

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): Tue Sep 29 20:04:20 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger652643
======================================================================

  Trigger: 00652643      Segment: 000

  BAT Trigger Time: 461638224   [s; MET]
      Trigger Stop: 461638288   [s; MET]
               UTC: 2015-08-19T00:50:08.987220    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 42.336760697218   Dec: 9.78396975898111  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.26
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    7.26

  Flight Position:   [ source = BAT ]
    RA: 42.336760697218   Dec: 9.78396975898111  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 42.3212286326767   Dec: 9.79016069906509  [deg; J2000]  
        { 02h 49m 17.1s , +09d 47' 24.6" }
         +/- 2.4953130795547 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.10044691523558 [arcmin] (formal 1-sigma fit error)
    SNR: 8.23752773727741
 
  Angular difference between Flight and Ground position is 0.990640 arcmin
 
  Partial Coding Fraction: 0.9375    [ including projection effects ]

  Duration
     T90: 51.6640000343323 +/- 13.6032043200312
        Measured from: 17.1439999938011
                   to: 68.8080000281334     [s; relative to TRIGTIME]
     T50: 23.120000064373 +/- 8.10791609954051
        Measured from: 28.3759999871254
                   to: 51.4960000514984     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 17.6759999990463     
                   to: 18.6759999990463     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 14.0080000162125     
                   to: 73.4480000138283     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.271273   0.319954   0.179621   0.096056
           0.043321   0.044081   0.038185   0.033810 [error]
 Peak      0.016890   0.011093   0.007533   0.007146
           0.005548   0.005727   0.004836   0.004491 [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 8.06e-08 1.29e-07 1.55e-07 3.66e-07 4.70e-07 7.31e-07   erg/cm2
              Error 1.83e-08 1.96e-08 3.66e-08 1.76e-07 8.62e-08 2.12e-07   erg/cm2
Peak flux Power-law 1.62e-01 1.02e-01 4.17e-02 2.30e-02 3.18e-01 3.29e-01   ph/cm2/s
              Error 8.47e-02 4.99e-02 3.75e-02 4.42e-02 1.32e-01 1.41e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.65e-08 1.38e-07 1.54e-07 1.41e-07 4.42e-07 5.10e-07   erg/cm2
              Error 2.05e-08 2.77e-08 4.18e-08 2.68e-07 1.01e-07 2.86e-07   erg/cm2
Peak flux Cutoff-PL 1.65e-01 1.01e-01 3.99e-02 2.08e-02 3.17e-01 3.28e-01   ph/cm2/s
              Error 1.24e-01 5.56e-02 -------- 4.41e-02 1.32e-01 1.39e-01   ph/cm2/s
 
Fluence        Band 7.46e-08 1.41e-07 1.49e-07 2.33e-07 4.46e-07 6.03e-07   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    1.730    0.273    -      -           8.56e-04 1.49e-04   45.060 57
CPL   1.164    1.283      64.1  -19.8      1.79e-03 6.37e-03   44.380 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.295    1.107    -      -           1.82e-03 1.52e-03   57.690 57
CPL   1.883    0.000      13.5    0.0      3.06e-03 0.00e+00   57.850 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   59.440   14.008   73.448
T90    51.664   17.144   68.808
T50    23.120   28.376   51.496
Peak    1.000   17.676   18.676

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
   42.3212     9.7902   0.0232    22.7628    -5.3589         0.7769026      8.238 TRIG_00652643                 
 
Foreground time interval of the image:
 14.008  73.101 (delta_t =  59.093 [sec])
Background time interval of the image:
-239.000  14.008 (delta_t = 253.008 [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   14.008 sec. to   73.448 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.72964     ( -0.266247   0.278934 )
Norm@50keV  : 8.55671E-04    ( -0.000151343   0.000147524 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.06 using 59 PHA bins.
# Reduced chi-squared =         0.7906 for     57 degrees of freedom 
# Null hypothesis probability =   8.736079e-01
 
Photon flux (15-150 keV)    in 59.44 sec: 0.114845 ( -0.0175479  0.017553 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.69904e-07 ( -8.50188e-08  8.72876e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   14.008 sec. to   73.448 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.16434     ( -1.50325   1.06335 )
Epeak [keV] : 64.0867      ( -24.5636 -64.1083 )
Norm@50keV  : 1.78690E-03    ( -0.00178565   0.0109456 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.38 using 59 PHA bins.
# Reduced chi-squared =         0.7925 for     56 degrees of freedom 
# Null hypothesis probability =   8.687236e-01
 
Photon flux (15-150 keV)    in 59.44 sec: 0.112454 ( -0.0182972  0.018218 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.42115e-07 ( -9.77051e-08  1.03571e-07 ) ergs/cm2

Band function

Time interval is from   14.008 sec. to   73.448 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.929449   ( 0.916953   4.95212 )
beta        : -2.14258    ( 2.14668   0.629286 )
Epeak [keV] : 53.8502      ( -52.3603 54.0538 )
Norm@50keV   : 2.52104E-03    ( -0.00154829   74.2813 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.08 using 59 PHA bins.
# Reduced chi-squared =         0.8015 for     55 degrees of freedom 
# Null hypothesis probability =   8.541950e-01
 
Photon flux (15-150 keV)    in 59.44 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.45961e-07 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.5400  (-1.91208  2.34078)
R^2/D10^2   : 3.25214E-02  (-0.0161115   0.0308265)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.20 using 59 PHA bins.
# Reduced chi-squared =         0.8983 for     57 degrees of freedom 
# Null hypothesis probability =   6.913628e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.422e-08   1.723e-08
25- 50  1.628e-07   3.902e-08
50-150  1.269e-07   4.553e-08
15-150  3.439e-07   8.289e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 109.407       (-47.3699      -109.562)
Norm        : 0.500537       (-0.0871929     0.122099)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.39 using 59 PHA bins.
# Reduced chi-squared =         0.7787 for     57 degrees of freedom 
# Null hypothesis probability =   8.883991e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.771e-08   1.644e-08
25- 50  1.367e-07   4.873e-08
50-150  2.328e-07   1.425e-07
15-150  4.472e-07   1.937e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.88123        (-3.43725      6.11371)
R1^2/D10^2  : 0.221301        (-0.183202      8.40769)
kT2 [keV]   : 18.3485        (-6.70003      -18.6499)
R2^2/D10^2  : 4.39914E-03    (-0.00404928   0.0223271)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.03 using 59 PHA bins.
# Reduced chi-squared =         0.8187 for     55 degrees of freedom 
# Null hypothesis probability =   8.290768e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.623e-08   4.289e-08
25- 50  1.382e-07   7.082e-08
50-150  2.065e-07   1.252e-07
15-150  4.209e-07   2.189e-07

Peak spectrum fit

Power-law model

Time interval is from   17.676 sec. to   18.676 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.29508     ( -0.849725   1.36373 )
Norm@50keV  : 1.82461E-03    ( -0.00182457   0.0012245 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.69 using 59 PHA bins.
# Reduced chi-squared =          1.012 for     57 degrees of freedom 
# Null hypothesis probability =   4.493780e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.317995 ( -0.131781  0.131859 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.74197e-08 ( -9.33851e-09  1.0676e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   17.676 sec. to   18.676 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.88267     (     )
Epeak [keV] : 13.5113      (   )
Norm@50keV  : 3.05799E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.85 using 59 PHA bins.
# Reduced chi-squared =          1.033 for     56 degrees of freedom 
# Null hypothesis probability =   4.066547e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.317130 ( -0.13106  0.132454 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.74048e-08 ( -9.39784e-09  1.05174e-08 ) ergs/cm2

Band function

Time interval is from   17.676 sec. to   18.676 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.63143   ( 1.63351   1.63351 )
beta        : -2.27153    ( 2.28202   0.835494 )
Epeak [keV] : 10.3082      ( -9.63288 -9.63288 )
Norm@50keV   : 6.77132E-03    ( -0.00708129   1.4233e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.70 using 59 PHA bins.
# Reduced chi-squared =          1.049 for     55 degrees of freedom 
# Null hypothesis probability =   3.757840e-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]    : 8.72007  (-5.47647  8.52166)
R^2/D10^2   : 0.237766  (-0.235402   39.6038)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.74 using 59 PHA bins.
# Reduced chi-squared =          1.066 for     57 degrees of freedom 
# Null hypothesis probability =   3.425825e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.717e-09   2.405e-09
25- 50  6.760e-09   4.465e-09
50-150  1.909e-09   1.644e-09
15-150  1.239e-08   8.060e-09

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 45.0412       (-45.0566      -45.0566)
Norm        : 1.90465       (-1.02744     5.28347)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.19 using 59 PHA bins.
# Reduced chi-squared =          1.021 for     57 degrees of freedom 
# Null hypothesis probability =   4.313039e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.536e-09   2.856e-09
25- 50  6.265e-09   3.945e-09
50-150  5.493e-09   4.969e-09
15-150  1.629e-08   1.136e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.20662        (-2.29967      4.34134)
R1^2/D10^2  : 14.3807        (-13.9785      17557.5)
kT2 [keV]   : 15.1235        (-7.97038      -15.1408)
R2^2/D10^2  : 2.26240E-02    (-0.022399   0.397868)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.95 using 59 PHA bins.
# Reduced chi-squared =          1.035 for     55 degrees of freedom 
# Null hypothesis probability =   4.024801e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.101e-09   2.778e-09
25- 50  5.066e-09   3.006e-09
50-150  6.768e-09   4.816e-09
15-150  1.693e-08   8.875e-09

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: 1.74049     ( -0.267915   0.281211 )
Norm@50keV  : 8.49224E-04    ( -0.00015208   0.000148172 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.11 using 59 PHA bins.
# Reduced chi-squared =         0.7915 for     57 degrees of freedom 
# Null hypothesis probability =   8.724518e-01
 
Photon flux (15-150 keV)    in 59.09 sec: 0.114429 ( -0.0176013  0.0176059 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.63299e-07 ( -8.45336e-08  8.68434e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.14017     ( -1.53672   1.08167 )
Epeak [keV] : 61.7030      ( -21.2296 -61.7207 )
Norm@50keV  : 1.86209E-03    ( -0.000595414   0.0121669 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.37 using 59 PHA bins.
# Reduced chi-squared =         0.7923 for     56 degrees of freedom 
# Null hypothesis probability =   8.689875e-01
 
Photon flux (15-150 keV)    in 59.09 sec: 0.111921 ( -0.0183415  0.018277 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.34055e-07 ( -9.68083e-08  1.03438e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.910596   ( 0.895707   5.86449 )
beta        : -2.16911    ( 2.17386   0.642571 )
Epeak [keV] : 52.5577      ( -50.8353 52.522 )
Norm@50keV   : 2.61447E-03    ( -0.00292459   67.7366 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.06 using 59 PHA bins.
# Reduced chi-squared =         0.8011 for     55 degrees of freedom 
# Null hypothesis probability =   8.546450e-01
 
Photon flux (15-150 keV)    in 59.09 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.38604e-07 ( 0  0 ) ergs/cm2

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

S(25-50 keV)  = 1.29e-07
S(50-100 keV) = 1.55e-07

T90 vs. Hardness ratio plot

T90                                   = 51.6640000343323 sec.
Hardness ratio (energy fluence ratio) = 1.20155

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.17945
Count Ratio (50-100 keV) / (15-25 keV) = 0.662141

Mask shadow pattern

IMX = 4.177627969290901E-01, IMY = 3.918811376565548E-02

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 14.008000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
326.0368  38.2599   10.6  51.4  155.9  -1.1193  -1.1    7.4	Cyg X-2                       
 48.7411 -17.6242    3.3  49.7    9.5   1.8864   3.5 ------	UNKNOWN                       
316.9616  69.7563    3.1  57.6 -165.4   3.9815   3.7 ------	UNKNOWN                       
 53.7399  53.1691    0.6  32.6 -112.6   7.0350  19.9 ------	UNKNOWN                       
 76.2402  -2.9214    3.0  56.3  -28.3   4.1094   3.9 ------	UNKNOWN                       
 72.2319  49.9186    4.7  41.1  -98.6   2.6501   2.5 ------	UNKNOWN

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

Time interval of the image:
14.008000 73.100590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
326.1527  38.3562   17.0  51.3  156.0   0.2642   0.7    2.3	Cyg X-2                       
 42.3212   9.7902    1.4  22.8   -5.4   0.7770   8.2 ------	UNKNOWN                       
 30.2037  50.5087    2.0  23.3 -137.5   0.5156   5.8 ------	UNKNOWN                       
 26.8492  62.2195    2.4  34.9 -142.8   0.5504   4.8 ------	UNKNOWN                       
 54.0461  59.8173    2.3  37.4 -120.6   0.8386   5.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
121.900600 963.099900
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 17.5804 -30.2479    4.6  46.6   45.9   5.8396   2.5 ------	UNKNOWN                       
 23.2911  55.3310    1.9  48.0 -178.5   7.2101   6.3 ------	UNKNOWN                       
 64.1406  -3.9208    2.2  25.7  -42.8   2.7021   5.3 ------	UNKNOWN                       
 53.7682  53.1567    0.6  44.4 -154.2  19.6758  20.0 ------	UNKNOWN                       
 64.6762  34.9739    3.2  32.4 -128.5   2.5593   3.7 ------	UNKNOWN                       
 73.9061  59.5407    3.7  55.1 -145.1  11.6362   3.6 ------	UNKNOWN                       
 74.0506  59.6794    5.1  55.3 -145.2   9.2359   3.0 ------	UNKNOWN                       
 85.6659  -2.6128    2.6  44.9  -60.2   9.9703   4.4 ------	UNKNOWN

Plot creation:
Wed Sep 30 11:09:32 EDT 2015