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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>
01 Oct 1997 21:18:36 yearsecs  23663916
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.46  109.41  -50.78   57.37
    1.00  -60.11  124.41  -48.96   70.43
    2.00  -60.75  139.41  -47.68   82.48
    3.00  -61.40  154.41  -47.01   93.93
    4.00  -60.61  169.41  -45.34  104.67
    5.00  -61.60  184.41  -45.94  115.78
    6.00  -62.81  199.41  -47.33  126.46
    7.00  -63.59  214.41  -48.90  136.81
    8.00  -63.98  229.41  -50.61  147.16
    9.00  -63.34  244.41  -51.81  158.11
   10.00  -62.93  259.41  -53.60  169.37
   11.00  -62.73  274.41  -55.93  180.88
   12.00  -62.77  289.41  -58.85  192.58
   13.00  -63.03  304.41  -62.43  204.54
   14.00  -63.51  319.41  -66.57  217.30
   15.00  -64.22  334.41  -70.98  232.02
   16.00  -65.15  349.41  -75.31  250.70
   17.00  -66.30    4.41  -79.02  277.38
   18.00  -66.31   19.41  -79.37  315.15
   19.00  -65.57   34.41  -76.06  346.77
   20.00  -63.98   49.41  -70.30    6.13
   21.00  -62.85   64.41  -64.86   20.80
   22.00  -61.26   79.41  -59.14   32.75
   23.00  -60.11   94.41  -54.45   44.87
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.26  109.41  -64.92   75.19
    1.00  -73.91  124.41  -63.03   84.58
    2.00  -74.75  139.41  -61.93   93.67
    3.00  -75.39  154.41  -61.19  102.16
    4.00  -76.99  169.41  -61.90  110.87
    5.00  -78.06  184.41  -62.55  118.55
    6.00  -78.16  199.41  -62.65  125.65
    7.00  -77.68  214.41  -62.61  132.92
    8.00  -78.15  229.41  -63.95  139.75
    9.00  -78.30  244.41  -65.35  146.55
   10.00  -78.15  259.41  -66.89  153.55
   11.00  -77.94  274.41  -68.74  160.61
   12.00  -77.61  289.41  -70.91  167.86
   13.00  -77.46  304.41  -73.55  174.52
   14.00  -77.28  319.41  -76.50  180.98
   15.00  -76.82  334.41  -79.65  188.54
   16.00  -76.71  349.41  -83.16  193.50
   17.00  -75.85    4.41  -86.87  207.63
   18.00  -75.61   19.41  -89.07   23.61
   19.00  -75.75   34.41  -84.97   42.60
   20.00  -75.26   49.41  -80.69   46.86
   21.00  -74.00   64.41  -75.92   49.91
   22.00  -73.85   79.41  -71.97   58.85
   23.00  -72.85   94.41  -67.63   65.48
</PRE>


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