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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>
28 Mar 1997 18:42:25 yearsecs   7497745
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -62.28  150.89  -48.19   91.79
    1.00  -62.83  165.89  -47.77  102.81
    2.00  -63.39  180.89  -47.79  113.57
    3.00  -63.95  195.89  -48.35  124.02
    4.00  -63.56  210.89  -48.62  134.38
    5.00  -64.84  225.89  -51.06  144.42
    6.00  -65.30  240.89  -53.16  154.59
    7.00  -65.29  255.89  -55.20  165.15
    8.00  -65.97  270.89  -58.20  175.32
    9.00  -65.33  285.89  -60.43  187.02
   10.00  -64.95  300.89  -63.34  199.10
   11.00  -64.72  315.89  -66.78  212.14
   12.00  -64.76  330.89  -70.60  227.02
   13.00  -65.02  345.89  -74.42  245.58
   14.00  -65.50    0.89  -77.74  271.07
   15.00  -66.21   15.89  -79.45  306.17
   16.00  -67.14   30.89  -78.61  342.79
   17.00  -67.11   45.89  -74.88    7.81
   18.00  -66.95   60.89  -70.56   24.94
   19.00  -67.63   75.89  -67.26   40.45
   20.00  -66.26   90.89  -62.12   50.48
   21.00  -65.16  105.89  -57.66   60.87
   22.00  -63.93  120.89  -53.57   71.01
   23.00  -62.74  135.89  -50.17   81.16
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.44  150.89  -54.50   95.22
    1.00  -69.63  165.89  -54.65  105.38
    2.00  -70.68  180.89  -55.12  114.98
    3.00  -71.76  195.89  -56.12  124.07
    4.00  -74.76  210.89  -59.54  132.13
    5.00  -75.89  225.89  -61.52  139.57
    6.00  -75.14  240.89  -62.13  148.01
    7.00  -74.24  255.89  -63.10  157.08
    8.00  -75.24  270.89  -66.10  163.83
    9.00  -74.78  285.89  -68.28  172.60
   10.00  -74.66  300.89  -71.12  180.92
   11.00  -74.29  315.89  -74.18  190.32
   12.00  -74.04  330.89  -77.62  200.50
   13.00  -74.00  345.89  -81.40  212.12
   14.00  -74.28    0.89  -85.43  227.58
   15.00  -73.89   15.89  -87.93  303.39
   16.00  -73.82   30.89  -85.08   15.26
   17.00  -72.11   45.89  -79.70   25.34
   18.00  -71.95   60.89  -75.36   39.36
   19.00  -72.89   75.89  -72.10   53.70
   20.00  -72.31   90.89  -67.96   62.06
   21.00  -70.16  105.89  -62.70   67.90
   22.00  -69.48  120.89  -59.25   76.85
   23.00  -68.58  135.89  -56.19   85.65
</PRE>


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