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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>
13 Aug 1997 19:27:56 yearsecs  19423676
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.63  137.47  -49.86   82.24
    1.00  -63.52  152.47  -49.34   93.54
    2.00  -64.17  167.47  -49.05  104.38
    3.00  -64.82  182.47  -49.20  114.91
    4.00  -64.55  197.47  -48.99  125.10
    5.00  -65.77  212.47  -50.86  135.08
    6.00  -66.05  227.47  -52.35  145.06
    7.00  -65.87  242.47  -53.88  155.37
    8.00  -66.33  257.47  -56.36  165.49
    9.00  -66.20  272.47  -58.69  176.23
   10.00  -65.86  287.47  -61.22  187.57
   11.00  -65.63  302.47  -64.31  199.40
   12.00  -65.64  317.47  -67.98  212.05
   13.00  -65.88  332.47  -71.99  226.62
   14.00  -66.35  347.47  -76.00  245.06
   15.00  -67.04    2.47  -79.53  271.48
   16.00  -67.96   17.47  -81.35  310.29
   17.00  -67.99   32.47  -79.23  347.85
   18.00  -67.91   47.47  -75.31   11.92
   19.00  -68.36   62.47  -71.61   29.88
   20.00  -67.09   77.47  -66.29   40.72
   21.00  -65.40   92.47  -60.84   50.42
   22.00  -64.16  107.47  -56.28   60.88
   23.00  -62.97  122.47  -52.30   71.32
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -67.63  137.47  -55.03   85.89
    1.00  -68.92  152.47  -54.85   96.52
    2.00  -70.03  167.47  -54.97  106.53
    3.00  -71.99  182.47  -56.41  116.20
    4.00  -75.11  197.47  -59.52  124.89
    5.00  -76.09  212.47  -60.93  132.56
    6.00  -75.19  227.47  -60.97  140.82
    7.00  -74.27  242.47  -61.51  149.62
    8.00  -75.20  257.47  -64.14  156.79
    9.00  -75.03  272.47  -66.18  165.00
   10.00  -75.30  287.47  -68.95  172.36
   11.00  -75.16  302.47  -71.79  180.44
   12.00  -74.90  317.47  -74.90  189.18
   13.00  -74.75  332.47  -78.37  198.38
   14.00  -74.97  347.47  -82.23  206.83
   15.00  -74.56    2.47  -85.97  226.85
   16.00  -74.52   17.47  -88.56  321.49
   17.00  -72.99   32.47  -84.07   10.80
   18.00  -72.91   47.47  -79.85   31.17
   19.00  -73.57   62.47  -76.14   46.84
   20.00  -72.82   77.47  -71.64   54.54
   21.00  -70.40   92.47  -65.86   59.11
   22.00  -69.16  107.47  -61.40   67.45
   23.00  -67.97  122.47  -57.47   76.20
</PRE>


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