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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
28 Jun 1997 15:18:30 yearsecs  15434310
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.96  210.38  -48.98  133.96
    1.00  -64.23  225.38  -50.44  144.26
    2.00  -65.29  240.38  -53.08  154.24
    3.00  -66.34  255.38  -56.07  164.02
    4.00  -66.16  270.38  -58.28  174.77
    5.00  -67.12  285.38  -61.90  184.47
    6.00  -67.25  300.38  -65.23  195.34
    7.00  -67.10  315.38  -68.71  207.61
    8.00  -67.68  330.38  -72.99  220.44
    9.00  -67.41  345.38  -76.47  239.31
   10.00  -66.99    0.38  -79.16  266.95
   11.00  -66.80   15.38  -80.13  304.65
   12.00  -66.84   30.38  -78.38  341.18
   13.00  -67.09   45.38  -75.00    7.07
   14.00  -67.58   60.38  -71.37   25.86
   15.00  -68.28   75.38  -68.06   41.41
   16.00  -69.21   90.38  -65.22   55.28
   17.00  -70.18  105.38  -62.82   67.58
   18.00  -69.96  120.38  -59.82   77.09
   19.00  -69.42  135.38  -57.10   86.06
   20.00  -68.37  150.38  -54.46   94.84
   21.00  -67.36  165.38  -52.38  104.11
   22.00  -66.21  180.38  -50.63  113.74
   23.00  -64.61  195.38  -49.00  123.68
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.96  210.38  -53.82  133.14
    1.00  -70.03  225.38  -55.89  142.17
    2.00  -71.04  240.38  -58.34  150.85
    3.00  -75.25  255.38  -63.91  155.61
    4.00  -77.72  270.38  -67.99  159.25
    5.00  -78.09  285.38  -70.55  164.96
    6.00  -77.27  300.38  -72.68  173.46
    7.00  -76.54  315.38  -75.31  182.28
    8.00  -76.80  330.38  -78.72  187.22
    9.00  -76.72  345.38  -82.19  192.48
   10.00  -77.12    0.38  -85.77  187.35
   11.00  -76.88   15.38  -88.81  133.40
   12.00  -77.01   30.38  -86.06   60.94
   13.00  -76.79   45.38  -82.24   56.46
   14.00  -76.86   60.38  -78.48   61.31
   15.00  -76.55   75.38  -74.73   65.94
   16.00  -76.82   90.38  -71.60   73.42
   17.00  -76.38  105.38  -68.36   79.16
   18.00  -76.70  120.38  -66.19   86.87
   19.00  -76.40  135.38  -63.97   93.60
   20.00  -75.37  150.38  -61.48  100.04
   21.00  -73.20  165.38  -58.28  106.73
   22.00  -71.21  180.38  -55.66  114.79
   23.00  -69.61  195.38  -53.97  123.75
</PRE>


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