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<HEAD>

    <TITLE>JHU/APL Auroral Oval Boundary</TITLE>

    <META NAME="Copyright" CONTENT="Copyright 2000 Johns Hopkins University Applied Physics Laboratory"/>

    <META NAME="Date" CONTENT="21 February 2000"/>

    <META NAME="Author" CONTENT="J. P. Skura"/>


  

  

    

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<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
26 May 1997 20:14:23 yearsecs  12600863
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.66  122.49  -50.91   70.18
    1.00  -62.24  137.49  -49.46   81.99
    2.00  -62.84  152.49  -48.64   93.21
    3.00  -63.43  167.49  -48.30  104.14
    4.00  -62.89  182.49  -47.26  114.60
    5.00  -64.10  197.49  -48.54  125.11
    6.00  -64.73  212.49  -49.85  135.28
    7.00  -64.89  227.49  -51.27  145.49
    8.00  -65.52  242.49  -53.56  155.58
    9.00  -64.93  257.49  -55.11  166.54
   10.00  -64.46  272.49  -57.15  177.89
   11.00  -64.27  287.49  -59.82  189.43
   12.00  -64.31  302.49  -63.13  201.25
   13.00  -64.57  317.49  -67.04  213.85
   14.00  -65.05  332.49  -71.26  228.26
   15.00  -65.76  347.49  -75.46  246.41
   16.00  -66.69    2.49  -79.17  272.25
   17.00  -67.84   17.49  -81.22  310.32
   18.00  -67.85   32.49  -79.07  347.55
   19.00  -67.18   47.49  -74.52   10.10
   20.00  -65.76   62.49  -68.81   24.03
   21.00  -64.65   77.49  -63.63   36.25
   22.00  -63.33   92.49  -58.58   47.38
   23.00  -62.16  107.49  -54.13   58.58
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.09  122.49  -62.53   82.39
    1.00  -74.01  137.49  -61.42   91.84
    2.00  -74.92  152.49  -60.86  100.76
    3.00  -75.78  167.49  -60.77  109.24
    4.00  -78.01  182.49  -62.53  117.63
    5.00  -78.98  197.49  -63.47  124.70
    6.00  -78.65  212.49  -63.50  131.62
    7.00  -78.11  227.49  -63.77  138.89
    8.00  -78.86  242.49  -65.68  145.02
    9.00  -78.69  257.49  -67.10  151.84
   10.00  -78.59  272.49  -68.95  158.44
   11.00  -78.52  287.49  -71.17  164.72
   12.00  -78.35  302.49  -73.66  170.87
   13.00  -78.16  317.49  -76.45  176.59
   14.00  -78.17  332.49  -79.53  180.31
   15.00  -77.73  347.49  -82.76  184.50
   16.00  -77.56    2.49  -86.11  178.87
   17.00  -76.26   17.49  -89.37   89.37
   18.00  -76.03   32.49  -85.55   45.62
   19.00  -76.57   47.49  -81.65   55.21
   20.00  -76.03   62.49  -77.59   57.90
   21.00  -74.37   77.49  -72.82   59.29
   22.00  -73.85   92.49  -68.90   66.59
   23.00  -73.01  107.49  -65.05   73.62
</PRE>


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