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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>
30 Aug 1997 12:37:04 yearsecs  20867824
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.94  244.53  -49.58  159.41
    1.00  -61.57  259.53  -52.37  170.37
    2.00  -62.20  274.53  -55.48  181.43
    3.00  -62.83  289.53  -58.94  192.60
    4.00  -62.12  304.53  -61.62  205.77
    5.00  -63.25  319.53  -66.36  217.81
    6.00  -64.06  334.53  -70.87  232.42
    7.00  -64.43  349.53  -74.65  252.28
    8.00  -64.70    4.53  -77.36  280.12
    9.00  -64.35   19.53  -77.13  315.02
   10.00  -63.94   34.53  -74.11  344.67
   11.00  -63.75   49.53  -69.99    5.90
   12.00  -63.79   64.53  -65.96   22.46
   13.00  -64.05   79.53  -62.43   37.08
   14.00  -64.53   94.53  -59.44   50.82
   15.00  -65.24  109.53  -57.00   63.78
   16.00  -66.17  124.53  -55.31   75.79
   17.00  -67.33  139.53  -54.48   87.02
   18.00  -67.32  154.53  -53.06   96.93
   19.00  -66.66  169.53  -51.47  106.61
   20.00  -65.18  184.53  -49.52  116.36
   21.00  -64.07  199.53  -48.57  126.51
   22.00  -62.65  214.53  -48.00  137.07
   23.00  -61.49  229.53  -48.27  148.12
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.73  244.53  -58.53  153.63
    1.00  -71.56  259.53  -61.27  162.14
    2.00  -72.49  274.53  -64.44  170.07
    3.00  -73.32  289.53  -67.85  177.51
    4.00  -75.59  304.53  -72.49  180.29
    5.00  -76.68  319.53  -76.27  183.49
    6.00  -76.37  334.53  -79.53  191.13
    7.00  -75.83  349.53  -83.03  201.23
    8.00  -76.62    4.53  -86.86  192.47
    9.00  -76.56   19.53  -88.77   78.97
   10.00  -76.48   34.53  -85.04   51.94
   11.00  -76.23   49.53  -81.03   53.45
   12.00  -75.91   64.53  -77.02   58.31
   13.00  -75.82   79.53  -73.33   65.23
   14.00  -75.80   94.53  -70.01   72.56
   15.00  -75.34  109.53  -66.75   79.06
   16.00  -75.21  124.53  -64.24   86.51
   17.00  -73.91  139.53  -61.10   92.85
   18.00  -73.73  154.53  -59.52  100.95
   19.00  -74.26  169.53  -59.13  109.57
   20.00  -73.69  184.53  -58.09  117.71
   21.00  -71.96  199.53  -56.38  126.20
   22.00  -71.55  214.53  -56.57  135.08
   23.00  -70.51  229.53  -56.72  144.51
</PRE>


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