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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>
20 Jun 1997 16:55:59 yearsecs  14748959
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.73  180.35  -48.15  113.25
    1.00  -64.37  195.35  -48.76  123.65
    2.00  -65.48  210.35  -50.45  133.71
    3.00  -66.60  225.35  -52.67  143.45
    4.00  -66.43  240.35  -54.13  153.61
    5.00  -67.35  255.35  -56.96  163.24
    6.00  -67.44  270.35  -59.40  173.49
    7.00  -67.28  285.35  -62.03  184.25
    8.00  -67.93  300.35  -65.80  194.24
    9.00  -67.57  315.35  -69.10  206.69
   10.00  -67.30  330.35  -72.67  221.27
   11.00  -67.05  345.35  -76.15  240.18
   12.00  -67.08    0.35  -79.25  266.67
   13.00  -67.34   15.35  -80.72  304.38
   14.00  -67.81   30.35  -79.48  343.02
   15.00  -68.52   45.35  -76.53   10.79
   16.00  -69.44   60.35  -73.27   30.72
   17.00  -70.37   75.35  -70.08   46.33
   18.00  -70.12   90.35  -66.10   57.03
   19.00  -69.46  105.35  -62.13   66.44
   20.00  -68.57  120.35  -58.43   75.44
   21.00  -67.47  135.35  -55.12   84.36
   22.00  -65.55  150.35  -51.60   93.14
   23.00  -64.15  165.35  -49.13  102.88
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.73  180.35  -53.17  114.23
    1.00  -70.06  195.35  -54.41  123.74
    2.00  -71.30  210.35  -56.10  132.66
    3.00  -75.98  225.35  -61.57  139.24
    4.00  -78.44  240.35  -65.11  144.53
    5.00  -78.84  255.35  -66.98  150.68
    6.00  -78.18  270.35  -68.35  158.35
    7.00  -77.63  285.35  -70.23  166.08
    8.00  -78.06  300.35  -73.12  171.03
    9.00  -77.70  315.35  -75.84  177.80
   10.00  -77.86  330.35  -79.02  181.58
   11.00  -77.70  345.35  -82.28  184.84
   12.00  -77.74    0.35  -85.59  178.92
   13.00  -77.35   15.35  -88.31  130.78
   14.00  -77.20   30.35  -86.02   63.83
   15.00  -76.69   45.35  -82.23   55.64
   16.00  -76.74   60.35  -78.44   60.69
   17.00  -76.14   75.35  -74.50   64.35
   18.00  -76.17   90.35  -71.16   71.52
   19.00  -75.22  105.35  -67.41   76.66
   20.00  -74.45  120.35  -64.15   83.17
   21.00  -72.47  135.35  -60.15   89.00
   22.00  -70.55  150.35  -56.68   96.26
   23.00  -69.15  165.35  -54.19  104.83
</PRE>


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