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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
23 Apr 1997 16:50:12 yearsecs   9737412
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.92  180.12  -49.34  113.31
    1.00  -65.18  195.12  -49.55  123.51
    2.00  -66.16  210.12  -51.09  133.45
    3.00  -67.15  225.12  -53.16  143.10
    4.00  -66.95  240.12  -54.58  153.17
    5.00  -67.86  255.12  -57.38  162.67
    6.00  -68.09  270.12  -59.93  172.65
    7.00  -68.84  285.12  -63.32  182.03
    8.00  -70.40  300.12  -67.78  189.76
    9.00  -71.55  315.12  -72.16  197.68
   10.00  -72.42  330.12  -76.46  206.29
   11.00  -71.14  345.12  -79.42  226.29
   12.00  -70.36    0.12  -82.32  255.47
   13.00  -70.00   15.12  -83.68  302.42
   14.00  -70.01   30.12  -81.88  348.66
   15.00  -70.35   45.12  -78.40   16.64
   16.00  -70.74   60.12  -74.54   34.49
   17.00  -70.65   75.12  -70.39   46.86
   18.00  -70.62   90.12  -66.62   57.88
   19.00  -69.78  105.12  -62.49   66.78
   20.00  -68.77  120.12  -58.67   75.51
   21.00  -67.79  135.12  -55.48   84.47
   22.00  -66.98  150.12  -53.08   93.82
   23.00  -66.12  165.12  -51.15  103.46
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.92  180.12  -54.37  114.34
    1.00  -71.17  195.12  -55.52  123.61
    2.00  -72.04  210.12  -56.81  132.37
    3.00  -77.80  225.12  -63.31  137.98
    4.00  -79.80  240.12  -66.32  142.89
    5.00  -80.24  255.12  -68.12  148.32
    6.00  -79.58  270.12  -69.36  155.43
    7.00  -78.57  285.12  -70.82  163.66
    8.00  -78.68  300.12  -73.40  168.95
    9.00  -78.72  315.12  -76.18  173.55
   10.00  -78.58  330.12  -79.11  177.57
   11.00  -78.55  345.12  -82.20  178.09
   12.00  -78.77    0.12  -85.08  166.90
   13.00  -78.53   15.12  -87.04  128.64
   14.00  -78.30   30.12  -85.61   79.39
   15.00  -78.07   45.12  -82.39   67.08
   16.00  -77.84   60.12  -78.85   66.68
   17.00  -77.60   75.12  -75.34   69.99
   18.00  -78.70   90.12  -72.84   79.21
   19.00  -78.96  105.12  -70.39   85.28
   20.00  -78.11  120.12  -67.46   89.33
   21.00  -76.17  135.12  -63.78   93.17
   22.00  -73.14  150.12  -59.29   98.03
   23.00  -71.28  165.12  -56.35  105.64
</PRE>


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