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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>
23 Oct 1997 11:44:56 yearsecs  25530296
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.62  249.41  -49.97  163.25
    1.00  -61.85  264.41  -53.42  173.91
    2.00  -62.60  279.41  -56.74  184.87
    3.00  -67.68  294.41  -64.26  190.25
    4.00  -67.35  309.41  -67.45  202.21
    5.00  -68.09  324.41  -71.81  213.64
    6.00  -68.14  339.41  -75.65  229.41
    7.00  -68.69  354.41  -79.65  250.14
    8.00  -69.34    9.41  -82.71  284.49
    9.00  -69.48   24.41  -82.36  332.14
   10.00  -69.12   39.41  -78.74    3.77
   11.00  -68.80   54.41  -74.30   22.71
   12.00  -68.73   69.41  -70.08   37.24
   13.00  -68.90   84.41  -66.37   50.10
   14.00  -69.32   99.41  -63.26   62.06
   15.00  -69.99  114.41  -60.88   73.27
   16.00  -70.63  129.41  -59.11   83.52
   17.00  -70.70  144.41  -57.38   92.75
   18.00  -70.86  159.41  -56.29  101.98
   19.00  -70.18  174.41  -54.81  110.88
   20.00  -69.37  189.41  -53.69  120.03
   21.00  -68.61  204.41  -53.20  129.44
   22.00  -64.97  219.41  -50.60  139.94
   23.00  -62.54  234.41  -49.82  151.26
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.62  249.41  -54.57  160.34
    1.00  -66.85  264.41  -57.90  169.91
    2.00  -67.60  279.41  -61.16  179.64
    3.00  -74.56  294.41  -69.74  177.66
    4.00  -76.70  309.41  -74.14  179.13
    5.00  -77.56  324.41  -77.67  181.42
    6.00  -76.86  339.41  -80.81  189.90
    7.00  -75.73  354.41  -84.25  204.58
    8.00  -75.98    9.41  -88.20  204.61
    9.00  -76.13   24.41  -87.74   47.68
   10.00  -75.96   39.41  -83.66   47.27
   11.00  -76.15   54.41  -79.72   54.99
   12.00  -76.57   69.41  -76.15   63.46
   13.00  -76.44   84.41  -72.62   69.57
   14.00  -76.30   99.41  -69.42   76.16
   15.00  -76.16  114.41  -66.63   83.04
   16.00  -76.01  129.41  -64.32   90.13
   17.00  -75.70  144.41  -62.34   97.28
   18.00  -76.91  159.41  -62.35  105.89
   19.00  -77.14  174.41  -61.85  113.41
   20.00  -76.07  189.41  -60.46  120.69
   21.00  -73.69  204.41  -58.23  128.81
   22.00  -69.97  219.41  -55.36  138.51
   23.00  -67.54  234.41  -54.46  149.06
</PRE>


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