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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>
24 May 1997 20:38:29 yearsecs  12429509
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.79  116.51  -47.68   61.96
    1.00  -58.27  131.51  -45.99   74.78
    2.00  -58.74  146.51  -44.88   86.76
    3.00  -59.21  161.51  -44.30   98.34
    4.00  -59.13  176.51  -43.59  109.57
    5.00  -59.99  191.51  -44.35  120.76
    6.00  -61.66  206.51  -46.52  131.53
    7.00  -62.62  221.51  -48.55  142.01
    8.00  -62.93  236.51  -50.43  152.61
    9.00  -62.29  251.51  -51.82  163.89
   10.00  -61.87  266.51  -53.79  175.49
   11.00  -61.68  281.51  -56.30  187.37
   12.00  -61.72  296.51  -59.41  199.48
   13.00  -61.97  311.51  -63.18  212.09
   14.00  -62.46  326.51  -67.39  226.04
   15.00  -63.16  341.51  -71.68  242.78
   16.00  -64.10  356.51  -75.64  264.86
   17.00  -65.25   11.51  -78.40  295.70
   18.00  -65.40   26.51  -77.44  331.09
   19.00  -64.26   41.51  -72.76  356.05
   20.00  -62.62   56.51  -66.69   12.17
   21.00  -61.45   71.51  -61.29   25.61
   22.00  -59.70   86.51  -55.62   37.21
   23.00  -58.59  101.51  -51.25   49.50
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -70.15  116.51  -60.66   74.84
    1.00  -70.97  131.51  -59.16   85.16
    2.00  -71.85  146.51  -58.33   94.93
    3.00  -72.38  161.51  -57.67  104.06
    4.00  -73.52  176.51  -58.11  113.16
    5.00  -74.77  191.51  -59.14  121.68
    6.00  -74.94  206.51  -59.56  129.73
    7.00  -74.26  221.51  -59.64  138.08
    8.00  -74.20  236.51  -60.83  146.38
    9.00  -74.53  251.51  -62.80  154.33
   10.00  -74.16  266.51  -64.54  163.07
   11.00  -73.86  281.51  -66.77  171.93
   12.00  -73.66  296.51  -69.51  180.84
   13.00  -73.56  311.51  -72.70  189.91
   14.00  -73.56  326.51  -76.26  199.47
   15.00  -73.30  341.51  -79.89  212.16
   16.00  -73.54  356.51  -83.90  227.77
   17.00  -73.35   11.51  -87.05  275.52
   18.00  -73.04   26.51  -85.58  356.16
   19.00  -72.54   41.51  -81.27   22.19
   20.00  -72.11   56.51  -76.71   36.13
   21.00  -71.02   71.51  -71.68   45.03
   22.00  -71.01   86.51  -67.84   56.17
   23.00  -69.95  101.51  -63.41   64.58
</PRE>


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