batgrbproduct analysis for trigger=450545

batgrbproduct Analysis for Trigger=450545

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 23:16:45 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger450545
======================================================================

  Trigger: 00450545      Segment: 000

  BAT Trigger Time: 323395984   [s; MET]
      Trigger Stop: 323396056   [s; MET]
               UTC: 2011-04-02T00:12:57.186040    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 197.4192884111   Dec: 61.2417618407497  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    11.87
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    11.87

  Flight Position:   [ source = BAT ]
    RA: 197.4192884111   Dec: 61.2417618407497  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 197.429707045456   Dec: 61.2460421050919  [deg; J2000]  
        { 13h 09m 43.1s , +61d 14' 45.8" }
         +/- 1.71352760722518 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.538760768971104 [arcmin] (formal 1-sigma fit error)
    SNR: 14.0925060104224
 
  Angular difference between Flight and Ground position is 0.395468 arcmin
 
  Partial Coding Fraction: 0.1074219    [ including projection effects ]

  Duration
     T90: 56.2080000042915 +/- 5.08057952165159
        Measured from: 2.53600001335144
                   to: 58.744000017643     [s; relative to TRIGTIME]
     T50: 30.5760000348091 +/- 5.55409756620577
        Measured from: 5.95999997854233
                   to: 36.5360000133514     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.18000000715256     
                   to: 4.18000000715256     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.375999987125397     
                   to: 62.5360000133514     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.189034   1.822871   1.303530   0.513078
           0.147609   0.155162   0.138367   0.119249 [error]
 Peak      0.074385   0.156153   0.178422   0.083909
           0.022092   0.025380   0.024947   0.021125 [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 4.67e-07 8.26e-07 1.12e-06 3.12e-06 3.24e-06 5.53e-06   erg/cm2
              Error 7.81e-08 8.45e-08 1.37e-07 8.18e-07 3.34e-07 9.19e-07   erg/cm2
Peak flux Power-law 8.77e-01 1.22e+00 1.26e+00 2.39e+00 4.12e+00 5.75e+00   ph/cm2/s
              Error 3.01e-01 2.57e-01 1.91e-01 7.96e-01 6.65e-01 8.95e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.46e-07 8.51e-07 1.14e-06 2.10e-06 3.19e-06 4.54e-06   erg/cm2
              Error 6.98e-08 1.03e-07 1.52e-07 1.14e-06 3.61e-07 1.31e-06   erg/cm2
Peak flux Cutoff-PL 8.86e-01 1.23e+00 1.26e+00 2.35e+00 4.12e+00 5.72e+00   ph/cm2/s
              Error 2.94e-01 2.58e-01 2.18e-01 1.09e+00 6.63e-01 1.18e+00   ph/cm2/s
 
Fluence        Band 4.16e-07 8.83e-07 1.12e-06 2.51e-06 3.17e-06 4.95e-06   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    1.563    0.165    -      -           5.48e-03 5.30e-04   58.100 57
CPL   1.289    0.588     132.7  -34.0      7.52e-03 8.85e-03   57.620 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.954    0.270    -      -           3.59e-02 5.68e-03   43.780 57
CPL   0.954    0.273    9999.4    0.0      3.61e-02 2.88e-02   43.780 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: 36.672000 sec.
T50 in the 50-300 keV band: 20.928000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   62.912   -0.376   62.536
T90    56.208    2.536   58.744
T50    30.576    5.960   36.536
Peak    1.000    3.180    4.180

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
  197.4297    61.2460   0.0136    48.0710    28.1108         5.0016921     14.093 TRIG_00450545                 
 
Foreground time interval of the image:
 -0.376  62.536 (delta_t =  62.912 [sec])
Background time interval of the image:
-239.000  -0.376 (delta_t = 238.624 [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

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

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   -0.376 sec. to   62.536 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.56299     ( -0.164766   0.166 )
Norm@50keV  : 5.48497E-03    ( -0.000530734   0.000529192 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.10 using 59 PHA bins.
# Reduced chi-squared =          1.019 for     57 degrees of freedom 
# Null hypothesis probability =   4.344281e-01
 
Photon flux (15-150 keV)    in 62.91 sec: 0.697004 ( -0.0697861  0.0699997 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.24253e-06 ( -3.3292e-07  3.34562e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.376 sec. to   62.536 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28863     ( -0.76004   0.41662 )
Epeak [keV] : 132.674      ( -64.7023 -132.696 )
Norm@50keV  : 7.51883E-03    ( -0.00751821   0.0101813 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.62 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     56 degrees of freedom 
# Null hypothesis probability =   4.151509e-01
 
Photon flux (15-150 keV)    in 62.91 sec: 0.688810 ( -0.07259  0.072605 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.19095e-06 ( -3.63972e-07  3.58178e-07 ) ergs/cm2

Band function

Time interval is from   -0.376 sec. to   62.536 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.752930   ( 0.777182   0.777182 )
beta        : -1.77536    ( 1.79332   0.345162 )
Epeak [keV] : 65.1770      ( -64.9881 343.698 )
Norm@50keV   : 1.54288E-02    ( -0.0157112   2148.8 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.70 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     55 degrees of freedom 
# Null hypothesis probability =   4.115825e-01
 
Photon flux (15-150 keV)    in 62.91 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.16585e-06 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.5691  (-1.63235  1.89397)
R^2/D10^2   : 8.67100E-02  (-0.0310688   0.0466405)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          80.21 using 59 PHA bins.
# Reduced chi-squared =          1.407 for     57 degrees of freedom 
# Null hypothesis probability =   2.307980e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.435e-07   4.514e-08
25- 50  9.413e-07   1.205e-07
50-150  1.342e-06   2.482e-07
15-150  2.527e-06   3.215e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 198.599       (-72.9734      -198.69)
Norm        : 2.83888       (-0.269224     0.311829)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.58 using 59 PHA bins.
# Reduced chi-squared =          1.010 for     57 degrees of freedom 
# Null hypothesis probability =   4.535138e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.449e-07   6.266e-08
25- 50  8.555e-07   3.719e-07
50-150  1.874e-06   9.997e-07
15-150  3.174e-06   1.395e-06

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.86245        (-2.67295      2.3124)
R1^2/D10^2  : 0.272001        (-0.130907      0.396949)
kT2 [keV]   : 45.9832        (-23.5784      -48.1193)
R2^2/D10^2  : 1.17375E-03    (-0.000999364   0.00886961)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.56 using 59 PHA bins.
# Reduced chi-squared =          1.047 for     55 degrees of freedom 
# Null hypothesis probability =   3.805379e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.555e-07   1.179e-07
25- 50  9.511e-07   3.385e-07
50-150  1.857e-06   9.066e-07
15-150  3.163e-06   1.153e-06

Peak spectrum fit

Power-law model

Time interval is from    3.180 sec. to    4.180 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.954182     ( -0.278913   0.261641 )
Norm@50keV  : 3.58569E-02    ( -0.00574348   0.00561678 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.78 using 59 PHA bins.
# Reduced chi-squared =         0.7680 for     57 degrees of freedom 
# Null hypothesis probability =   9.007880e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.12033 ( -0.662349  0.666767 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.94216e-07 ( -6.00262e-08  6.01778e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    3.180 sec. to    4.180 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.953996     ( -0.285713   0.259573 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 3.61194E-02    ( -0.00538139   0.0522943 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.78 using 59 PHA bins.
# Reduced chi-squared =         0.7818 for     56 degrees of freedom 
# Null hypothesis probability =   8.823902e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.12492 ( -0.66795  0.65826 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.94195e-07 ( -5.9873e-08  6.0324e-08 ) ergs/cm2

Band function

Time interval is from    3.180 sec. to    4.180 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.782151   ( 0.782151   5.75213 )
beta        : -0.954186    ( 0.954186   0.278912 )
Epeak [keV] : 53.4175      ( -53.4175 -53.4175 )
Norm@50keV   : 5.89621E-02    ( -0.0256862   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.78 using 59 PHA bins.
# Reduced chi-squared =         0.7959 for     55 degrees of freedom 
# Null hypothesis probability =   8.617760e-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]    : 25.9131  (-5.24168  7.44865)
R^2/D10^2   : 8.91691E-02  (-0.0474597   0.0920084)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.51 using 59 PHA bins.
# Reduced chi-squared =         0.9388 for     57 degrees of freedom 
# Null hypothesis probability =   6.067154e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.020e-08   3.315e-09
25- 50  5.893e-08   1.584e-08
50-150  2.917e-07   7.415e-08
15-150  3.608e-07   9.730e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 17.4943       (-2.743     2.74266)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.95 using 59 PHA bins.
# Reduced chi-squared =          1.034 for     57 degrees of freedom 
# Null hypothesis probability =   4.040190e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.358e-08   2.504e-08
25- 50  8.383e-08   4.695e-08
50-150  1.839e-07   1.037e-07
15-150  3.113e-07   1.757e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.36260        (-4.17618      6.91395)
R1^2/D10^2  : 1.26670        (-0.973647      7.71369)
kT2 [keV]   : 45.1864        (-17.0951      -45.6421)
R2^2/D10^2  : 1.47100E-02    (-0.0120176   0.0337886)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.41 using 59 PHA bins.
# Reduced chi-squared =         0.7893 for     55 degrees of freedom 
# Null hypothesis probability =   8.705583e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.558e-08   1.609e-08
25- 50  7.475e-08   4.025e-08
50-150  2.965e-07   1.622e-07
15-150  3.968e-07   2.101e-07

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: 1.56299     ( -0.164766   0.166 )
Norm@50keV  : 5.48497E-03    ( -0.000530734   0.000529192 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.10 using 59 PHA bins.
# Reduced chi-squared =          1.019 for     57 degrees of freedom 
# Null hypothesis probability =   4.344281e-01
 
Photon flux (15-150 keV)    in 62.91 sec: 0.697004 ( -0.0697861  0.0699997 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.24253e-06 ( -3.3292e-07  3.34562e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28863     ( -0.76004   0.41662 )
Epeak [keV] : 132.674      ( -64.7023 -132.696 )
Norm@50keV  : 7.51883E-03    ( -0.00751821   0.0101813 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.62 using 59 PHA bins.
# Reduced chi-squared =          1.029 for     56 degrees of freedom 
# Null hypothesis probability =   4.151509e-01
 
Photon flux (15-150 keV)    in 62.91 sec: 0.688810 ( -0.07259  0.072605 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.19095e-06 ( -3.63972e-07  3.58178e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.752930   ( 0.777182   0.777182 )
beta        : -1.77536    ( 1.79332   0.345162 )
Epeak [keV] : 65.1770      ( -64.9881 343.699 )
Norm@50keV   : 1.54288E-02    ( -0.0157112   2666.94 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.70 using 59 PHA bins.
# Reduced chi-squared =          1.031 for     55 degrees of freedom 
# Null hypothesis probability =   4.115825e-01
 
Photon flux (15-150 keV)    in 62.91 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.16585e-06 ( 0  0 ) ergs/cm2

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

S(25-50 keV)  = 8.26e-07
S(50-100 keV) = 1.12e-06

T90 vs. Hardness ratio plot

T90                                   = 56.2080000042915 sec.
Hardness ratio (energy fluence ratio) = 1.35593

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.53307
Count Ratio (50-100 keV) / (15-25 keV) = 1.09629

Mask shadow pattern

IMX = 9.820485789151535E-01, IMY = -5.246021422344366E-01

TIME vs. PHA plot around the trigger time

TIME vs. DetID plot around the trigger time

100 us light curve (15-350 keV)

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 -0.376000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6217  22.0189    0.3  33.4 -152.9   9.5050  42.0    0.7	Crab                          
 96.7625  13.5343    3.0  37.8 -177.9   0.9335   3.9 ------	UNKNOWN                       
 99.9314  50.8914    2.5   3.6  -95.5   0.8925   4.6 ------	UNKNOWN                       
 77.8571   1.4296    2.5  54.5 -157.2   2.9402   4.7 ------	UNKNOWN                       
 72.1468  12.6862    2.6  46.7 -144.4   2.0297   4.5 ------	UNKNOWN

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

Time interval of the image:
-0.376000 62.536000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.7913  21.8624    0.0  33.5 -153.3   0.1011   0.9   12.7	Crab                          
197.4297  61.2460    0.8  48.1   28.1   5.0015  14.1 ------	UNKNOWN                       
121.8558  30.6120    2.2  23.4  130.6   0.5811   5.3 ------	UNKNOWN                       
 84.2456  47.4098    1.9  14.4 -106.7   0.5344   6.0 ------	UNKNOWN                       
350.3175  66.8091    2.4  52.9  -38.7   1.9009   4.9 ------	UNKNOWN                       
 52.8848  33.3922    2.6  41.8 -105.7   1.6602   4.4 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
528.500590 963.055600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.5366  35.4350    8.6  43.8    2.2   0.8209   1.3    6.8	Her X-1                       
193.7112  31.1033    3.2  30.3   89.5   2.0370   3.6 ------	UNKNOWN                       
262.1645  24.3355    3.3  56.7    3.0   6.5862   3.5 ------	UNKNOWN                       
266.0068  40.0991    3.0  45.6  -12.1   2.0241   3.9 ------	UNKNOWN                       
152.6964  70.6034    2.8  19.9 -140.3   1.2410   4.2 ------	UNKNOWN                       
 88.7780  49.6875    4.9  55.3 -145.1   4.4123   2.4 ------	UNKNOWN

Plot creation:
Sat May 30 22:37:35 EDT 2015