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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>
22 Apr 1997 20:22:29 yearsecs   9663749
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.30  122.69  -51.56   70.90
    1.00  -62.86  137.69  -50.08   82.55
    2.00  -63.42  152.69  -49.22   93.65
    3.00  -63.97  167.69  -48.83  104.46
    4.00  -63.59  182.69  -47.95  114.86
    5.00  -64.86  197.69  -49.30  125.25
    6.00  -65.32  212.69  -50.44  135.32
    7.00  -65.31  227.69  -51.68  145.49
    8.00  -65.99  242.69  -54.01  155.46
    9.00  -65.35  257.69  -55.52  166.39
   10.00  -64.98  272.69  -57.64  177.57
   11.00  -64.74  287.69  -60.27  189.06
   12.00  -64.78  302.69  -63.60  200.79
   13.00  -65.03  317.69  -67.51  213.28
   14.00  -65.52  332.69  -71.72  227.59
   15.00  -66.22  347.69  -75.94  245.68
   16.00  -67.16    2.69  -79.68  271.73
   17.00  -68.31   17.69  -81.73  310.99
   18.00  -68.34   32.69  -79.56  349.17
   19.00  -67.65   47.69  -74.97   11.53
   20.00  -66.28   62.69  -69.34   25.32
   21.00  -65.18   77.69  -64.17   37.35
   22.00  -63.95   92.69  -59.22   48.44
   23.00  -62.77  107.69  -54.74   59.44
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.03  122.69  -61.48   81.10
    1.00  -73.12  137.69  -60.52   91.01
    2.00  -74.09  152.69  -60.03  100.22
    3.00  -75.08  167.69  -60.05  108.97
    4.00  -77.63  182.69  -62.13  117.62
    5.00  -78.63  197.69  -63.11  124.82
    6.00  -78.11  212.69  -62.97  131.93
    7.00  -77.50  227.69  -63.20  139.43
    8.00  -78.40  242.69  -65.29  145.64
    9.00  -78.16  257.69  -66.68  152.77
   10.00  -78.20  272.69  -68.69  159.34
   11.00  -77.98  287.69  -70.86  166.20
   12.00  -77.66  302.69  -73.34  173.18
   13.00  -77.50  317.69  -76.23  179.42
   14.00  -77.60  332.69  -79.46  183.57
   15.00  -77.18  347.69  -82.79  189.16
   16.00  -77.01    2.69  -86.34  187.12
   17.00  -75.53   17.69  -89.48    2.12
   18.00  -75.30   32.69  -85.33   35.66
   19.00  -75.97   47.69  -81.43   50.86
   20.00  -75.40   62.69  -77.22   55.00
   21.00  -73.52   77.69  -72.14   56.79
   22.00  -72.86   92.69  -68.02   64.42
   23.00  -72.06  107.69  -64.14   72.11
</PRE>


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