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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>
17 Dec 1997 12:27:44 yearsecs  30284864
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -64.12  237.72  -51.69  152.94
    1.00  -64.23  252.72  -53.77  163.60
    2.00  -65.30  267.72  -57.08  173.64
    3.00  -66.38  282.72  -60.73  183.45
    4.00  -66.20  297.72  -63.71  194.88
    5.00  -67.14  312.72  -68.08  205.29
    6.00  -67.26  327.72  -71.97  218.68
    7.00  -67.09  342.72  -75.56  236.43
    8.00  -67.57  357.72  -79.26  259.94
    9.00  -67.41   12.72  -80.80  297.05
   10.00  -67.00   27.72  -79.07  335.76
   11.00  -66.82   42.72  -75.41    2.66
   12.00  -66.86   57.72  -71.34   21.40
   13.00  -67.12   72.72  -67.56   36.60
   14.00  -67.61   87.72  -64.27   50.23
   15.00  -68.32  102.72  -61.55   62.84
   16.00  -69.25  117.72  -59.56   74.50
   17.00  -70.21  132.72  -58.24   85.14
   18.00  -69.99  147.72  -56.34   94.24
   19.00  -69.45  162.72  -54.65  103.31
   20.00  -68.41  177.72  -52.91  112.48
   21.00  -67.40  192.72  -51.73  122.01
   22.00  -66.37  207.72  -51.16  131.84
   23.00  -64.77  222.72  -50.71  142.26
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.12  237.72  -56.28  150.38
    1.00  -70.19  252.72  -59.11  159.20
    2.00  -71.21  267.72  -62.23  167.60
    3.00  -75.50  282.72  -68.25  169.50
    4.00  -77.94  297.72  -72.57  170.38
    5.00  -78.29  312.72  -75.56  174.56
    6.00  -77.59  327.72  -78.38  182.29
    7.00  -77.06  342.72  -81.62  189.37
    8.00  -77.67  357.72  -85.04  181.91
    9.00  -77.44   12.72  -88.03  148.70
   10.00  -77.77   27.72  -86.38   76.26
   11.00  -77.48   42.72  -82.97   62.25
   12.00  -77.58   57.72  -79.35   64.65
   13.00  -77.33   72.72  -75.75   68.00
   14.00  -77.35   87.72  -72.50   73.92
   15.00  -77.03  102.72  -69.36   79.46
   16.00  -77.27  117.72  -67.08   86.68
   17.00  -76.86  132.72  -64.71   92.94
   18.00  -77.14  147.72  -63.46  100.43
   19.00  -76.70  162.72  -61.95  107.38
   20.00  -75.56  177.72  -60.14  114.49
   21.00  -73.38  192.72  -57.73  122.28
   22.00  -71.37  207.72  -56.05  131.09
   23.00  -69.77  222.72  -55.43  140.62
</PRE>


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