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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>
12 Apr 1997 14:02:15 yearsecs   8776935
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.96  225.40  -48.29  144.98
    1.00  -62.53  240.40  -50.54  155.61
    2.00  -63.11  255.40  -53.15  166.27
    3.00  -63.68  270.40  -56.08  177.02
    4.00  -63.22  285.40  -58.45  188.95
    5.00  -64.46  300.40  -62.79  199.36
    6.00  -65.01  315.40  -66.91  211.24
    7.00  -65.09  330.40  -70.77  225.88
    8.00  -65.54  345.40  -74.79  243.79
    9.00  -65.10    0.40  -77.26  270.75
   10.00  -64.68   15.40  -77.76  305.38
   11.00  -64.49   30.40  -75.66  337.96
   12.00  -64.53   45.40  -72.05    1.92
   13.00  -64.79   60.40  -68.26   20.01
   14.00  -65.27   75.40  -64.85   35.44
   15.00  -65.98   90.40  -61.93   49.61
   16.00  -66.91  105.40  -59.56   62.79
   17.00  -68.06  120.40  -57.91   74.90
   18.00  -68.08  135.40  -55.74   84.90
   19.00  -67.40  150.40  -53.48   94.26
   20.00  -66.01  165.40  -51.01  103.60
   21.00  -64.90  180.40  -49.32  113.50
   22.00  -63.62  195.40  -48.02  123.67
   23.00  -62.45  210.40  -47.51  134.20
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.70  225.40  -59.38  140.51
    1.00  -74.69  240.40  -61.67  148.13
    2.00  -75.62  255.40  -64.23  155.17
    3.00  -76.54  270.40  -67.07  161.40
    4.00  -78.79  285.40  -71.01  163.20
    5.00  -79.76  300.40  -73.98  165.41
    6.00  -79.44  315.40  -76.47  170.51
    7.00  -79.01  330.40  -79.23  175.20
    8.00  -79.65  345.40  -82.06  169.59
    9.00  -79.39    0.40  -84.75  160.36
   10.00  -79.31   15.40  -86.20  126.55
   11.00  -79.07   30.40  -85.09   87.42
   12.00  -78.70   45.40  -82.26   72.20
   13.00  -78.51   60.40  -78.93   70.58
   14.00  -78.53   75.40  -75.69   73.95
   15.00  -78.09   90.40  -72.42   77.32
   16.00  -77.90  105.40  -69.56   82.72
   17.00  -76.55  120.40  -66.06   86.62
   18.00  -76.30  135.40  -63.87   93.48
   19.00  -76.85  150.40  -62.95  101.43
   20.00  -76.38  165.40  -61.48  108.52
   21.00  -74.77  180.40  -59.27  115.68
   22.00  -74.29  195.40  -58.67  123.78
   23.00  -73.59  210.40  -58.36  132.17
</PRE>


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