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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>
19 Apr 1997 15:57:38 yearsecs   9388658
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.73  195.84  -46.16  123.95
    1.00  -62.31  210.84  -47.42  134.53
    2.00  -62.91  225.84  -49.24  145.00
    3.00  -63.49  240.84  -51.49  155.46
    4.00  -62.97  255.84  -53.09  166.69
    5.00  -64.18  270.84  -56.61  176.91
    6.00  -64.80  285.84  -59.95  187.58
    7.00  -64.94  300.84  -63.31  199.07
    8.00  -65.57  315.84  -67.51  210.71
    9.00  -64.97  330.84  -70.77  226.58
   10.00  -64.52  345.84  -73.94  246.47
   11.00  -64.33    0.84  -76.53  272.89
   12.00  -64.36   15.84  -77.38  306.50
   13.00  -64.62   30.84  -75.72  338.92
   14.00  -65.10   45.84  -72.61    3.52
   15.00  -65.81   60.84  -69.31   22.45
   16.00  -66.74   75.84  -66.34   38.60
   17.00  -67.90   90.84  -63.81   53.22
   18.00  -67.91  105.84  -60.49   64.51
   19.00  -67.23  120.84  -56.99   74.30
   20.00  -65.82  135.84  -53.37   83.37
   21.00  -64.71  150.84  -50.70   93.02
   22.00  -63.40  165.84  -48.35  102.97
   23.00  -62.23  180.84  -46.62  113.33
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.90  195.84  -54.26  124.04
    1.00  -70.91  210.84  -55.75  133.04
    2.00  -71.90  225.84  -57.70  141.64
    3.00  -72.85  240.84  -60.03  149.84
    4.00  -75.47  255.84  -64.16  155.58
    5.00  -76.57  270.84  -67.16  161.56
    6.00  -76.04  285.84  -69.20  169.93
    7.00  -75.27  300.84  -71.52  179.32
    8.00  -76.12  315.84  -75.20  184.04
    9.00  -75.84  330.84  -78.47  192.25
   10.00  -75.82  345.84  -82.10  199.57
   11.00  -75.66    0.84  -85.90  208.97
   12.00  -75.36   15.84  -89.52  296.07
   13.00  -75.29   30.84  -85.84   33.81
   14.00  -75.42   45.84  -81.73   45.82
   15.00  -74.99   60.84  -77.48   52.04
   16.00  -74.89   75.84  -73.59   60.10
   17.00  -73.40   90.84  -68.90   64.54
   18.00  -73.22  105.84  -65.57   73.04
   19.00  -73.96  120.84  -63.62   82.71
   20.00  -73.41  135.84  -61.02   90.27
   21.00  -71.51  150.84  -57.59   97.23
   22.00  -70.89  165.84  -55.92  105.90
   23.00  -69.87  180.84  -54.30  114.78
</PRE>


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