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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 Apr 1997 00:59:41 yearsecs   9161981
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.60   55.43  -61.65    5.75
    1.00  -59.15   70.43  -58.56   21.48
    2.00  -59.71   85.43  -55.86   36.23
    3.00  -60.26  100.43  -53.40   50.40
    4.00  -59.84  115.43  -50.13   62.86
    5.00  -60.76  130.43  -48.79   75.65
    6.00  -62.21  145.43  -48.60   87.79
    7.00  -63.27  160.43  -48.53   99.08
    8.00  -63.43  175.43  -47.97  109.74
    9.00  -62.82  190.43  -47.16  120.18
   10.00  -62.38  205.43  -47.16  130.71
   11.00  -62.19  220.43  -48.04  141.36
   12.00  -62.22  235.43  -49.64  152.13
   13.00  -62.48  250.43  -51.84  162.99
   14.00  -62.96  265.43  -54.60  173.86
   15.00  -63.67  280.43  -57.89  184.64
   16.00  -64.60  295.43  -61.79  195.22
   17.00  -65.76  310.43  -66.33  205.72
   18.00  -65.84  325.43  -70.17  219.27
   19.00  -64.89  340.43  -73.05  238.24
   20.00  -63.27  355.43  -74.63  264.21
   21.00  -62.13   10.43  -74.94  295.44
   22.00  -60.45   25.43  -71.74  326.01
   23.00  -59.33   40.43  -66.80  348.78
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -69.81   55.43  -75.00   26.86
    1.00  -70.56   70.43  -71.55   42.87
    2.00  -71.45   85.43  -68.50   56.43
    3.00  -72.04  100.43  -65.60   67.58
    4.00  -73.53  115.43  -64.09   79.05
    5.00  -74.77  130.43  -63.01   88.96
    6.00  -74.85  145.43  -61.42   96.97
    7.00  -73.98  160.43  -59.36  104.40
    8.00  -74.24  175.43  -58.87  112.81
    9.00  -74.50  190.43  -58.86  121.08
   10.00  -74.21  205.43  -58.79  129.29
   11.00  -73.91  220.43  -59.23  137.64
   12.00  -73.70  235.43  -60.25  146.14
   13.00  -73.63  250.43  -61.86  154.66
   14.00  -73.60  265.43  -63.90  163.23
   15.00  -73.26  280.43  -66.10  172.35
   16.00  -73.39  295.43  -69.09  180.80
   17.00  -72.85  310.43  -71.97  191.17
   18.00  -72.60  325.43  -75.41  202.07
   19.00  -72.47  340.43  -79.12  215.16
   20.00  -72.04  355.43  -82.64  236.86
   21.00  -70.76   10.43  -84.28  284.15
   22.00  -70.67   25.43  -83.48  338.64
   23.00  -69.53   40.43  -78.89    6.80
</PRE>


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