batgrbproduct analysis for trigger=453788

batgrbproduct Analysis for Trigger=453788

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 13 22:15:47 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger453788
======================================================================

  Trigger: 00453788      Segment: 000

  BAT Trigger Time: 327685898.432   [s; MET]
      Trigger Stop: 327685906.624   [s; MET]
               UTC: 2011-05-21T15:51:31.455260    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 120.144250897113   Dec: 45.7980888226143  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.26
     Image Trigger?:     NO
     Rate S/N Ratio:     17.8885438199983  [ if not an image trigger ]
     Image S/N Ratio:    7.26

  Flight Position:   [ source = BAT ]
    RA: 120.144250897113   Dec: 45.7980888226143  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 120.127823405101   Dec: 45.8080649994631  [deg; J2000]  
        { 08h 00m 30.7s , +45d 48' 29.0" }
         +/- 2.21701869122503 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.990251529649291 [arcmin] (formal 1-sigma fit error)
    SNR: 9.75353752460828
 
  Angular difference between Flight and Ground position is 0.911276 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 96 +/- 49.0407993409569
        Measured from: 1.56800001859665
                   to: 97.5680000185966     [s; relative to TRIGTIME]
     T50: 35 +/- 43.1045241245046
        Measured from: 6.56800001859665
                   to: 41.5680000185966     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 7.56800001859665     
                   to: 8.56800001859665     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.568000018596649     
                   to: 108.568000018597     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.117595   0.284623   0.304436   0.219400
           0.053945   0.055744   0.050220   0.045367 [error]
 Peak      0.007488   0.022584   0.016447   0.019645
           0.005262   0.005728   0.005210   0.004681 [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 3.64e-08 1.05e-07 2.48e-07 1.60e-06 6.71e-07 1.99e-06   erg/cm2
              Error 1.59e-08 2.69e-08 4.57e-08 7.69e-07 1.26e-07 7.78e-07   erg/cm2
Peak flux Power-law 7.47e-02 1.19e-01 1.43e-01 3.34e-01 4.32e-01 6.70e-01   ph/cm2/s
              Error 5.27e-02 5.02e-02 3.97e-02 2.50e-01 1.24e-01 2.37e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.69e-08 1.06e-07 2.48e-07 1.56e-06 6.70e-07 1.95e-06   erg/cm2
              Error 1.49e-08 2.64e-08 4.78e-08 1.23e-06 1.26e-07 7.58e-07   erg/cm2
Peak flux Cutoff-PL 7.85e-02 1.22e-01 1.42e-01 3.18e-01 4.35e-01 6.57e-01   ph/cm2/s
              Error 5.29e-02 5.04e-02 3.99e-02 3.27e-01 1.24e-01 2.67e-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    0.765    0.355    -      -           5.24e-04 1.02e-04   52.260 57
CPL   0.766    0.358    9999.4    0.0      5.27e-04 5.25e-04   52.270 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.737    0.601    -      -           3.75e-03 1.16e-03   65.570 57
CPL   0.756    0.757    9999.4    0.0      3.80e-03 5.02e-03   65.590 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: 95.680000 sec.
T50 in the 50-300 keV band: 41.600000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  108.000    0.568  108.568
T90    96.000    1.568   97.568
T50    35.000    6.568   41.568
Peak    1.000    7.568    8.568

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
  120.1278    45.8081   0.0197    13.8173  -144.1414         0.7262714      9.754 TRIG_00453788                 
 
Foreground time interval of the image:
  0.568  49.869 (delta_t =  49.301 [sec])
Background time interval of the image:
-239.432   0.568 (delta_t = 240.000 [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 8.192000

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 8.192000

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 8.192000

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)

The mask-weighted light curves based on cleaned DPHs

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    0.568 sec. to  108.568 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.764703     ( -0.374755   0.335202 )
Norm@50keV  : 5.23647E-04    ( -0.000103856   9.96412e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.26 using 59 PHA bins.
# Reduced chi-squared =         0.9168 for     57 degrees of freedom 
# Null hypothesis probability =   6.533286e-01
 
Photon flux (15-150 keV)    in 108 sec: 6.02751E-02 ( -0.0111787  0.0112598 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.70895e-07 ( -1.25528e-07  1.26513e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.568 sec. to  108.568 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.766495     ( -0.386358   0.329709 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 5.27483E-04    ( -0.000104854   0.000945194 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.27 using 59 PHA bins.
# Reduced chi-squared =         0.9334 for     56 degrees of freedom 
# Null hypothesis probability =   6.168603e-01
 
Photon flux (15-150 keV)    in 108 sec: 6.04696E-02 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.69655e-07 ( -1.2426e-07  1.26821e-07 ) ergs/cm2

Band function

Time interval is from    0.568 sec. to  108.568 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.807335   ( 0.807521   0.807521 )
beta        : -0.764704    ( -0.335001   0.374756 )
Epeak [keV] : 16.9577      ( -16.9572 -16.9572 )
Norm@50keV   : 7.39732E-04    ( -0.000316504   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.26 using 59 PHA bins.
# Reduced chi-squared =         0.9501 for     55 degrees of freedom 
# Null hypothesis probability =   5.801216e-01
 
Photon flux (15-150 keV)    in 108 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]    : 26.3948  (-6.553  11.5938)
R^2/D10^2   : 1.27323E-03  (-0.000812827   0.0017573)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.31 using 59 PHA bins.
# Reduced chi-squared =          1.023 for     57 degrees of freedom 
# Null hypothesis probability =   4.268193e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.616e-08   6.759e-09
25- 50  9.416e-08   3.833e-08
50-150  4.817e-07   2.027e-07
15-150  5.920e-07   1.979e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 0.243419       (-0.0468092     0.0468046)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.38 using 59 PHA bins.
# Reduced chi-squared =          1.182 for     57 degrees of freedom 
# Null hypothesis probability =   1.635626e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.546e-08   3.830e-08
25- 50  1.259e-07   7.355e-08
50-150  2.761e-07   1.575e-07
15-150  4.675e-07   2.706e-07

Double BB

R1^2/D10^2  : 6.64208E-03        (      )
kT2 [keV]   : 200.000        (      )
R2^2/D10^2  : 1.40611E-05    (-6.9484e-06   8.32347e-05)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.46 using 59 PHA bins.
#Fit statistic : Chi-Squared =          51.08 using 59 PHA bins.
#Fit statistic : Chi-Squared =          51.04 using 59 PHA bins.
# Reduced chi-squared =         0.9357 for     55 degrees of freedom 
# Reduced chi-squared =         0.9288 for     55 degrees of freedom 
# Reduced chi-squared =         0.9279 for     55 degrees of freedom 
# Null hypothesis probability =   6.104929e-01
# Null hypothesis probability =   6.250560e-01
# Null hypothesis probability =   6.268246e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.106e-08   1.886e-08
25- 50  1.167e-07   6.491e-08
50-150  5.306e-07   3.560e-07
15-150  6.784e-07   4.520e-07

Peak spectrum fit

Power-law model

Time interval is from    7.568 sec. to    8.568 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.737404     ( -0.673377   0.529493 )
Norm@50keV  : 3.75007E-03    ( -0.00122614   0.00109897 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.57 using 59 PHA bins.
# Reduced chi-squared =          1.150 for     57 degrees of freedom 
# Null hypothesis probability =   2.040907e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.432319 ( -0.123465  0.124209 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.50183e-08 ( -1.3043e-08  1.32135e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    7.568 sec. to    8.568 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.756260     ( -1.00449   0.509823 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 3.79992E-03    ( -0.00107537   0.00897402 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.59 using 59 PHA bins.
# Reduced chi-squared =          1.171 for     56 degrees of freedom 
# Null hypothesis probability =   1.784844e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.435038 ( -0.126457  0.121712 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.47605e-08 ( -1.27922e-08  1.29931e-08 ) ergs/cm2

Band function

Time interval is from    7.568 sec. to    8.568 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.769431   ( 0.768729   0.768729 )
beta        : -0.737426    ( -0.528766   0.674051 )
Epeak [keV] : 17.3819      ( -17.3819 -17.3819 )
Norm@50keV   : 5.30968E-03    ( -0.00264437   92913.3 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.57 using 59 PHA bins.
# Reduced chi-squared =          1.192 for     55 degrees of freedom 
# Null hypothesis probability =   1.557613e-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]    : 23.5084  (-9.64685  77.2831)
R^2/D10^2   : 1.24974E-02  (-0.012164   0.0531586)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.46 using 59 PHA bins.
# Reduced chi-squared =          1.236 for     57 degrees of freedom 
# Null hypothesis probability =   1.084546e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.238e-09   7.700e-10
25- 50  6.800e-09   4.189e-09
50-150  2.804e-08   1.784e-08
15-150  3.608e-08   2.256e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 1.72962       (-0.512076     0.512057)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.06 using 59 PHA bins.
# Reduced chi-squared =          1.264 for     57 degrees of freedom 
# Null hypothesis probability =   8.631014e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.306e-09   2.667e-09
25- 50  8.284e-09   4.884e-09
50-150  1.817e-08   1.110e-08
15-150  3.076e-08   1.940e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 11.7224        (-4.07345      4.40616)
R1^2/D10^2  : 7.89115E-02        (-0.0616795      0.127904)
kT2 [keV]   : 199.085        (-146.719      -199.19)
R2^2/D10^2  : 1.15053E-04    (-5.06104e-05   0.00107949)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.16 using 59 PHA bins.
# Reduced chi-squared =          1.130 for     55 degrees of freedom 
# Null hypothesis probability =   2.363740e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.435e-09   1.510e-09
25- 50  8.253e-09   5.165e-09
50-150  3.610e-08   8.340e-09
15-150  4.679e-08   1.492e-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: 0.759667     ( -0.29397   0.270666 )
Norm@50keV  : 9.51354E-04    ( -0.00015243   0.000148313 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.85 using 59 PHA bins.
# Reduced chi-squared =         0.8394 for     57 degrees of freedom 
# Null hypothesis probability =   8.008327e-01
 
Photon flux (15-150 keV)    in 49.3 sec: 0.109537 ( -0.0166045  0.016704 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.57598e-07 ( -8.56681e-08  8.62503e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.754408     ( -0.298231   0.271634 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 9.58738E-04    ( -0.000143104   0.00196641 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.85 using 59 PHA bins.
# Reduced chi-squared =         0.8544 for     56 degrees of freedom 
# Null hypothesis probability =   7.725517e-01
 
Photon flux (15-150 keV)    in 49.3 sec: 0.109552 ( -0.0167489  0.016636 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.57608e-07 ( -8.97768e-08  8.58609e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.899096   ( 0.899096   0.899096 )
beta        : -0.759666    ( -0.27038   0.29397 )
Epeak [keV] : 14.9054      ( -14.9054 -14.9054 )
Norm@50keV   : 1.36743E-03    ( -0.000560115   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.85 using 59 PHA bins.
# Reduced chi-squared =         0.8699 for     55 degrees of freedom 
# Null hypothesis probability =   7.420542e-01
 
Photon flux (15-150 keV)    in 49.3 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)  = 1.05e-07
S(50-100 keV) = 2.48e-07

T90 vs. Hardness ratio plot

T90                                   = 96 sec.
Hardness ratio (energy fluence ratio) = 2.3619

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 2.42037
Count Ratio (50-100 keV) / (15-25 keV) = 2.58885

Mask shadow pattern

IMX = -1.993289069839686E-01, IMY = 1.440704497886629E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000

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:
-239.432000 0.568000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
181.4505  58.9865    3.0  24.8   54.4   0.9758   3.8 ------	UNKNOWN                       
140.4938  44.8723    2.3  12.2  149.0   0.9095   5.1 ------	UNKNOWN                       
355.3487  83.5961    2.1  38.6  -16.6   1.3707   5.4 ------	UNKNOWN                       
117.3398  11.0190    2.2  47.3 -166.9   1.9142   5.3 ------	UNKNOWN                       
 93.2845  15.9832    2.1  50.9 -135.5   4.8742   5.4 ------	UNKNOWN

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

Time interval of the image:
0.568000 49.868590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
246.8004  80.7881    2.2  37.9    4.0   0.5830   5.1 ------	UNKNOWN                       
126.7086  19.3764    2.3  37.5 -178.0   0.5302   5.0 ------	UNKNOWN                       
124.7346  12.7020    2.3  44.4 -176.4   0.6993   5.0 ------	UNKNOWN                       
120.1282  45.8082    1.2  13.8 -144.1   0.7223   9.7 ------	UNKNOWN                       
115.0129  19.1274    2.6  40.0 -160.8   0.5259   4.5 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
84.668630 962.601200
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6352  22.0096    0.4  38.0 -111.0  35.7939  31.0    0.3	Crab                          
166.2062  33.8733    3.1  36.7   97.7   4.9511   3.7 ------	UNKNOWN                       
107.6355  -6.0997    2.6  53.1 -159.1   5.8764   4.5 ------	UNKNOWN                       
  6.9135  67.3928    3.1  56.2  -19.9   7.0864   3.7 ------	UNKNOWN

Plot creation:
Sat May 30 22:14:58 EDT 2015