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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>
08 Sep 1997 15:52:32 yearsecs  21657152
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.71  195.90  -46.14  123.99
    1.00  -62.97  210.90  -48.06  134.47
    2.00  -63.80  225.90  -50.08  144.76
    3.00  -67.84  240.90  -55.48  153.19
    4.00  -67.40  255.90  -57.09  163.57
    5.00  -68.00  270.90  -59.99  173.28
    6.00  -67.87  285.90  -62.65  183.89
    7.00  -68.16  300.90  -66.12  194.27
    8.00  -69.20  315.90  -70.56  203.83
    9.00  -69.64  330.90  -74.69  215.93
   10.00  -69.48  345.90  -78.34  233.75
   11.00  -69.19    0.90  -81.39  261.91
   12.00  -69.16   15.90  -82.74  305.42
   13.00  -69.36   30.90  -81.04  348.27
   14.00  -69.80   45.90  -77.66   15.65
   15.00  -70.47   60.90  -74.08   34.34
   16.00  -70.46   75.90  -70.01   46.97
   17.00  -70.31   90.90  -66.15   57.82
   18.00  -71.37  105.90  -63.85   69.85
   19.00  -70.72  120.90  -60.48   78.35
   20.00  -69.89  135.90  -57.51   86.81
   21.00  -69.09  150.90  -55.15   95.63
   22.00  -65.72  165.90  -50.70  103.83
   23.00  -63.46  180.90  -47.86  113.58
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.71  195.90  -51.08  124.05
    1.00  -67.97  210.90  -52.89  133.65
    2.00  -68.80  225.90  -54.78  142.99
    3.00  -75.46  240.90  -62.43  147.73
    4.00  -77.72  255.90  -66.10  152.60
    5.00  -78.13  270.90  -68.38  158.69
    6.00  -77.17  285.90  -70.01  167.40
    7.00  -75.76  300.90  -71.85  178.03
    8.00  -75.71  315.90  -74.99  185.54
    9.00  -75.55  330.90  -78.36  193.69
   10.00  -75.32  345.90  -81.96  203.26
   11.00  -75.46    0.90  -85.88  211.92
   12.00  -75.93   15.90  -89.84  144.73
   13.00  -75.82   30.90  -85.95   41.92
   14.00  -75.70   45.90  -81.82   48.02
   15.00  -75.58   60.90  -77.78   54.93
   16.00  -75.46   75.90  -73.95   62.12
   17.00  -75.31   90.90  -70.41   69.43
   18.00  -76.74  105.90  -68.57   80.22
   19.00  -77.16  120.90  -66.52   87.91
   20.00  -76.28  135.90  -63.79   93.69
   21.00  -74.16  150.90  -60.24   99.29
   22.00  -70.72  165.90  -55.75  105.86
   23.00  -68.46  180.90  -52.88  114.52
</PRE>


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