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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>
17 Apr 1997 23:07:20 yearsecs   9241640
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -57.27   82.74  -53.26   30.79
    1.00  -57.69   97.74  -50.88   45.12
    2.00  -58.11  112.74  -48.67   58.97
    3.00  -58.53  127.74  -46.77   71.92
    4.00  -58.66  142.74  -45.14   83.82
    5.00  -59.48  157.74  -44.81   95.60
    6.00  -61.30  172.74  -45.91  107.29
    7.00  -62.77  187.74  -47.10  118.28
    8.00  -62.60  202.74  -47.25  128.80
    9.00  -61.96  217.74  -47.59  139.49
   10.00  -61.60  232.74  -48.74  150.42
   11.00  -61.35  247.74  -50.41  161.61
   12.00  -61.39  262.74  -52.72  172.95
   13.00  -61.65  277.74  -55.56  184.42
   14.00  -62.13  292.74  -58.97  195.94
   15.00  -62.84  307.74  -63.05  207.64
   16.00  -63.77  322.74  -67.65  220.16
   17.00  -64.92  337.74  -72.43  234.74
   18.00  -65.11  352.74  -75.95  256.29
   19.00  -63.85    7.74  -76.72  288.21
   20.00  -62.20   22.74  -74.26  321.41
   21.00  -61.01   37.74  -69.70  346.56
   22.00  -59.22   52.74  -63.25    3.53
   23.00  -58.12   67.74  -57.80   17.61
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.50   82.74  -70.88   59.86
    1.00  -74.34   97.74  -68.18   70.71
    2.00  -75.18  112.74  -66.06   80.41
    3.00  -75.70  127.74  -64.25   88.85
    4.00  -76.59  142.74  -63.37   97.41
    5.00  -77.74  157.74  -63.28  105.75
    6.00  -78.05  172.74  -62.83  113.03
    7.00  -77.40  187.74  -61.83  120.03
    8.00  -77.59  202.74  -62.12  127.32
    9.00  -77.96  217.74  -63.04  134.38
   10.00  -77.64  232.74  -63.71  141.74
   11.00  -77.21  247.74  -64.73  149.39
   12.00  -76.92  262.74  -66.29  157.05
   13.00  -76.68  277.74  -68.31  164.69
   14.00  -76.57  292.74  -70.81  172.00
   15.00  -76.28  307.74  -73.57  179.75
   16.00  -76.43  322.74  -76.87  185.89
   17.00  -76.35  337.74  -80.29  192.52
   18.00  -75.96  352.74  -83.87  201.45
   19.00  -75.25    7.74  -87.63  224.65
   20.00  -74.85   22.74  -87.85    9.01
   21.00  -73.98   37.74  -83.30   27.49
   22.00  -74.03   52.74  -79.11   41.83
   23.00  -73.27   67.74  -74.51   49.37
</PRE>


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