batgrbproduct analysis for trigger=291728

batgrbproduct Analysis for Trigger=291728

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 07:11:24 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger291728
======================================================================

  Trigger: 00291728      Segment: 000

  BAT Trigger Time: 212015074.624   [s; MET]
      Trigger Stop: 212015075.648   [s; MET]
               UTC: 2007-09-20T21:04:32.386340    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 0.144108470626363   Dec: -34.8186092179982  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.94
     Image Trigger?:     NO
     Rate S/N Ratio:     14.1067359796659  [ if not an image trigger ]
     Image S/N Ratio:    7.94

  Flight Position:   [ source = BAT ]
    RA: 0.144108470626363   Dec: -34.8186092179982  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 0.118000545972279   Dec: -34.8455819705286  [deg; J2000]  
        { 00h 00m 28.3s , -34d 50' 44.1" }
         +/- 0.98829579186739 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.410696724987387 [arcmin] (formal 1-sigma fit error)
    SNR: 30.9330499324815
 
  Angular difference between Flight and Ground position is 2.066981 arcmin
 
  Partial Coding Fraction: 1.03125    [ including projection effects ]

  Duration
     T90: 22.2560000121593 +/- 2.79212104121582
        Measured from: -11.2080000042915
                   to: 11.0480000078678     [s; relative to TRIGTIME]
     T50: 9.41200000047684 +/- 1.20058650862768
        Measured from: -4.55200001597404
                   to: 4.85999998450279     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -1.04399999976158     
                   to: -0.0439999997615814     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -14.1200000047684     
                   to: 13.3519999980927     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.491465   0.679196   0.279561   0.050297
           0.024552   0.025822   0.022343   0.019248 [error]
 Peak      0.031941   0.044404   0.020418   0.008319
           0.004850   0.005180   0.004418   0.003793 [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 1.60e-07 2.34e-07 2.56e-07 5.22e-07 8.11e-07 1.17e-06   erg/cm2
              Error 1.24e-08 1.20e-08 2.08e-08 8.52e-08 4.84e-08 1.06e-07   erg/cm2
Peak flux Power-law 3.09e-01 2.82e-01 1.77e-01 1.71e-01 8.40e-01 9.39e-01   ph/cm2/s
              Error 6.55e-02 3.83e-02 3.68e-02 7.08e-02 1.13e-01 1.33e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.39e-07 2.72e-07 2.31e-07 6.68e-08 6.95e-07 7.09e-07   erg/cm2
              Error 1.46e-08 1.78e-08 2.85e-08 4.58e-08 5.57e-08 7.11e-08   erg/cm2
Peak flux Cutoff-PL 3.13e-01 2.82e-01 1.75e-01 1.64e-01 8.40e-01 9.34e-01   ph/cm2/s
              Error 6.55e-02 3.82e-02 3.50e-02 9.33e-02 1.13e-01 1.30e-01   ph/cm2/s
 
Fluence        Band 1.32e-07 2.79e-07 2.22e-07 2.36e-07 7.31e-07 8.71e-07   erg/cm2
              Error 1.54e-08 1.80e-08 2.53e-08 1.08e-07 5.48e-08 1.24e-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    1.875    0.093    -      -           3.21e-03 1.91e-04   79.010 57
CPL   0.385    0.583      44.7    4.5      2.29e-02 2.07e-02   51.000 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.667    0.254    -      -           6.40e-03 9.98e-04   54.510 57
CPL   1.673    0.255    9999.4   -0.0      6.39e-03 4.30e-03   54.510 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: 17.408000 sec.
T50 in the 50-300 keV band: 7.232000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   27.472  -14.120   13.352
T90    22.256  -11.208   11.048
T50     9.412   -4.552    4.860
Peak    1.000   -1.044   -0.044

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
    0.1180   -34.8456   0.0062     7.8147   155.7131         1.6092794     30.933 TRIG_00291728                 
 
Foreground time interval of the image:
-14.120  13.352 (delta_t =  27.472 [sec])
Background time interval of the image:
-105.723 -14.120 (delta_t =  91.603 [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  -14.120 sec. to   13.352 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.87483     ( -0.0922454   0.093857 )
Norm@50keV  : 3.21014E-03    ( -0.000191917   0.000190491 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          79.01 using 59 PHA bins.
# Reduced chi-squared =          1.386 for     57 degrees of freedom 
# Null hypothesis probability =   2.844897e-02
 
Photon flux (15-150 keV)    in 27.47 sec: 0.455846 ( -0.0236672  0.0236819 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.10656e-07 ( -4.81362e-08  4.85999e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from  -14.120 sec. to   13.352 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.385418     ( -0.624621   0.541302 )
Epeak [keV] : 44.7173      ( -3.81235 5.19255 )
Norm@50keV  : 2.29283E-02    ( -0.0116758   0.0298197 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.00 using 59 PHA bins.
# Reduced chi-squared =         0.9107 for     56 degrees of freedom 
# Null hypothesis probability =   6.641043e-01
 
Photon flux (15-150 keV)    in 27.47 sec: 0.426072 ( -0.025406  0.025477 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.95112e-07 ( -5.4039e-08  5.74453e-08 ) ergs/cm2

Band function

Time interval is from  -14.120 sec. to   13.352 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.475029   ( -1.02295   1.9089 )
beta        : -2.58139    ( -0.609919   0.314165 )
Epeak [keV] : 38.9545      ( -5.49013 6.10053 )
Norm@50keV   : 8.45215E-02    ( -0.10811   1.8443 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.05 using 59 PHA bins.
# Reduced chi-squared =         0.8192 for     55 degrees of freedom 
# Null hypothesis probability =   8.283717e-01
 
Photon flux (15-150 keV)    in 27.47 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.30554e-07 ( -7.30361e-07  -5.49949e-08 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.5956  (-0.565112  0.60363)
R^2/D10^2   : 0.174408  (-0.0334982   0.040975)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.99 using 59 PHA bins.
# Reduced chi-squared =          1.263 for     57 degrees of freedom 
# Null hypothesis probability =   8.727722e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.114e-07   9.299e-09
25- 50  3.000e-07   1.621e-08
50-150  1.847e-07   2.509e-08
15-150  5.962e-07   3.626e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 77.4939       (-12.1242      16.0289)
Norm        : 2.17232       (-0.171555     0.189591)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.38 using 59 PHA bins.
# Reduced chi-squared =          1.042 for     57 degrees of freedom 
# Null hypothesis probability =   3.888659e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.545e-07   1.130e-08
25- 50  2.524e-07   1.346e-08
50-150  3.486e-07   4.711e-08
15-150  7.555e-07   5.247e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.83399        (-1.3158      0.989419)
R1^2/D10^2  : 0.296725        (-0.0757155      0.160361)
kT2 [keV]   : 33.1463        (-14.8598      111.784)
R2^2/D10^2  : 1.12773E-03    (-0.000952576   0.00530999)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.73 using 59 PHA bins.
# Reduced chi-squared =         0.8133 for     55 degrees of freedom 
# Null hypothesis probability =   8.372412e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.276e-07   1.696e-08
25- 50  2.851e-07   4.349e-08
50-150  3.288e-07   1.307e-07
15-150  7.415e-07   1.861e-07

Peak spectrum fit

Power-law model

Time interval is from   -1.044 sec. to   -0.044 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66733     ( -0.249685   0.257682 )
Norm@50keV  : 6.39529E-03    ( -0.00101239   0.000983376 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.51 using 59 PHA bins.
# Reduced chi-squared =         0.9563 for     57 degrees of freedom 
# Null hypothesis probability =   5.691513e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.839902 ( -0.113451  0.113462 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.93789e-08 ( -9.86548e-09  1.01297e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -1.044 sec. to   -0.044 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.67315     ( -0.257659   0.25248 )
Epeak [keV] : 9999.35      ( -9999.35 -9999.36 )
Norm@50keV  : 6.39162E-03    ( -0.00100655   0.00759847 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.51 using 59 PHA bins.
# Reduced chi-squared =         0.9735 for     56 degrees of freedom 
# Null hypothesis probability =   5.312444e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.839973 ( -0.113466  0.113319 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.94428e-08 ( -5.0713e-09  9.722e-09 ) ergs/cm2

Band function

Time interval is from   -1.044 sec. to   -0.044 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.73088   ( -4.73088   -4.73088 )
beta        : -1.75373    ( -0.316345   0.284701 )
Epeak [keV] : 21.8162      ( -21.8162 7.49996 )
Norm@50keV   : 1157.30    ( -155.863   5.0481e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.99 using 59 PHA bins.
# Reduced chi-squared =         0.9817 for     55 degrees of freedom 
# Null hypothesis probability =   5.131373e-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]    : 9.92473  (-1.47044  1.85972)
R^2/D10^2   : 0.404409  (-0.193151   0.335589)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.12 using 59 PHA bins.
# Reduced chi-squared =          1.213 for     57 degrees of freedom 
# Null hypothesis probability =   1.303646e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.092e-09   2.061e-09
25- 50  1.990e-08   3.985e-09
50-150  1.016e-08   4.057e-09
15-150  3.816e-08   7.610e-09

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 149.030       (-74.9138      -146.998)
Norm        : 3.44397       (-0.506839     0.756888)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.10 using 59 PHA bins.
# Reduced chi-squared =         0.9841 for     57 degrees of freedom 
# Null hypothesis probability =   5.089921e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.850e-09   4.947e-09
25- 50  1.639e-08   9.010e-09
50-150  3.226e-08   1.915e-08
15-150  5.750e-08   3.292e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.09770        (-1.14634      1.34812)
R1^2/D10^2  : 0.771430        (-0.255259      0.859935)
kT2 [keV]   : 185.304        (-147.466      -184.761)
R2^2/D10^2  : 1.38894E-04    (-5.38897e-05   0.00295659)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.06 using 59 PHA bins.
# Reduced chi-squared =         0.8557 for     55 degrees of freedom 
# Null hypothesis probability =   7.679340e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.393e-09   2.774e-09
25- 50  1.789e-08   5.890e-09
50-150  3.788e-08   9.979e-09
15-150  6.517e-08   1.700e-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: 1.87483     ( -0.0922454   0.093857 )
Norm@50keV  : 3.21014E-03    ( -0.000191917   0.000190491 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          79.01 using 59 PHA bins.
# Reduced chi-squared =          1.386 for     57 degrees of freedom 
# Null hypothesis probability =   2.844897e-02
 
Photon flux (15-150 keV)    in 27.47 sec: 0.455846 ( -0.0236672  0.0236819 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.10656e-07 ( -4.81362e-08  4.85999e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.385418     ( -0.624621   0.541302 )
Epeak [keV] : 44.7173      ( -3.81235 5.19255 )
Norm@50keV  : 2.29283E-02    ( -0.0116758   0.0298197 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.00 using 59 PHA bins.
# Reduced chi-squared =         0.9107 for     56 degrees of freedom 
# Null hypothesis probability =   6.641043e-01
 
Photon flux (15-150 keV)    in 27.47 sec: 0.426072 ( -0.025406  0.025477 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.95112e-07 ( -5.4039e-08  5.74453e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.475029   ( -1.02295   1.9089 )
beta        : -2.58139    ( -0.609919   0.314165 )
Epeak [keV] : 38.9545      ( -5.49013 6.10053 )
Norm@50keV   : 8.45215E-02    ( -0.10811   1.8443 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.05 using 59 PHA bins.
# Reduced chi-squared =         0.8192 for     55 degrees of freedom 
# Null hypothesis probability =   8.283717e-01
 
Photon flux (15-150 keV)    in 27.47 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.30554e-07 ( -7.30361e-07  -5.49949e-08 ) ergs/cm2

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

S(25-50 keV)  = 2.34e-07
S(50-100 keV) = 2.56e-07

T90 vs. Hardness ratio plot

T90                                   = 22.2560000121593 sec.
Hardness ratio (energy fluence ratio) = 1.09402

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.38198
Count Ratio (50-100 keV) / (15-25 keV) = 0.568832

Mask shadow pattern

IMX = -1.250973248164751E-01, IMY = -5.644920245335627E-02

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:
-105.723400 -14.120000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
285.0522 -24.9976   14.0  56.8   -6.9   0.3858   0.8    4.7	HT1900.1-2455                 
324.5652  -1.2730    2.2  44.6   50.2   2.2713   5.2 ------	UNKNOWN                       
 58.9484 -63.7931    2.6  46.4 -124.0   1.6872   4.5 ------	UNKNOWN

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

Time interval of the image:
-14.120000 13.352000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
285.0345 -24.8809   12.2  56.9   -6.8   0.2852   1.0    2.4	HT1900.1-2455                 
329.0418 -30.6612    2.4  20.0   16.5   0.2849   4.9 ------	UNKNOWN                       
  0.1180 -34.8456    0.4   7.8  155.7   1.6095  30.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
739.676580 962.490400
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 61.0845   9.9266    2.3  54.9  165.6   4.4443   5.1 ------	UNKNOWN                       
 49.0320   0.0494    2.7  40.0  159.4   1.1621   4.3 ------	UNKNOWN                       
 53.7315  -5.0620    2.4  38.5  170.1   1.0740   4.8 ------	UNKNOWN                       
338.5309 -63.5572    2.5  41.8  -29.2   1.0261   4.7 ------	UNKNOWN

Plot creation:
Sun May 31 09:14:43 EDT 2015