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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>
18 Apr 1997 12:47:46 yearsecs   9290866
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.16  242.03  -45.61  159.21
    1.00  -57.41  257.03  -48.07  170.90
    2.00  -57.64  272.03  -50.82  182.90
    3.00  -57.84  287.03  -53.83  195.26
    4.00  -58.02  302.03  -57.18  208.06
    5.00  -58.59  317.03  -61.33  221.36
    6.00  -60.33  332.03  -66.73  235.14
    7.00  -61.70  347.03  -71.46  252.87
    8.00  -61.03    2.03  -73.23  279.26
    9.00  -60.80   17.03  -73.24  309.78
   10.00  -60.68   32.03  -70.67  337.49
   11.00  -60.72   47.03  -66.84  358.65
   12.00  -60.95   62.03  -63.07   15.57
   13.00  -61.36   77.03  -59.84   30.70
   14.00  -61.97   92.03  -57.14   45.13
   15.00  -62.78  107.03  -54.89   58.91
   16.00  -63.79  122.03  -53.23   71.74
   17.00  -65.00  137.03  -52.38   83.58
   18.00  -65.30  152.03  -51.20   94.16
   19.00  -63.99  167.03  -48.89  104.01
   20.00  -62.40  182.03  -46.77  114.20
   21.00  -61.17  197.03  -45.64  124.79
   22.00  -59.29  212.03  -44.57  135.83
   23.00  -58.14  227.03  -44.78  147.32
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -74.53  242.03  -61.70  149.15
    1.00  -75.39  257.03  -64.25  156.31
    2.00  -76.22  272.03  -67.06  162.77
    3.00  -76.71  287.03  -69.88  169.01
    4.00  -77.42  302.03  -73.08  173.69
    5.00  -78.53  317.03  -76.49  174.89
    6.00  -78.66  332.03  -79.51  177.39
    7.00  -77.77  347.03  -82.66  184.17
    8.00  -77.66    2.03  -85.98  177.99
    9.00  -77.85   17.03  -87.76  119.07
   10.00  -77.36   32.03  -85.58   64.64
   11.00  -77.00   47.03  -81.86   58.46
   12.00  -76.76   62.03  -78.03   61.37
   13.00  -76.54   77.03  -74.34   66.61
   14.00  -76.49   92.03  -71.03   73.21
   15.00  -76.28  107.03  -67.99   79.74
   16.00  -76.52  122.03  -65.79   87.34
   17.00  -76.65  137.03  -64.03   94.72
   18.00  -76.37  152.03  -62.34  101.79
   19.00  -75.62  167.03  -60.63  108.92
   20.00  -75.40  182.03  -59.87  116.72
   21.00  -74.82  197.03  -59.21  124.66
   22.00  -74.98  212.03  -59.82  132.68
   23.00  -74.33  227.03  -60.11  141.08
</PRE>


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