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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>
29 Mar 1997 23:32:25 yearsecs   7601545
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -56.92   79.10  -53.54   26.99
    1.00  -57.25   94.10  -51.01   41.30
    2.00  -57.57  109.10  -48.69   55.27
    3.00  -57.89  124.10  -46.61   68.47
    4.00  -58.20  139.10  -45.03   80.75
    5.00  -58.93  154.10  -44.48   92.63
    6.00  -60.84  169.10  -45.58  104.51
    7.00  -62.41  184.10  -46.76  115.67
    8.00  -62.00  199.10  -46.52  126.26
    9.00  -61.25  214.10  -46.62  137.02
   10.00  -60.87  229.10  -47.63  148.02
   11.00  -60.79  244.10  -49.38  159.17
   12.00  -60.91  259.10  -51.70  170.47
   13.00  -61.24  274.10  -54.53  181.89
   14.00  -61.78  289.10  -57.90  193.36
   15.00  -62.54  304.10  -61.91  204.89
   16.00  -63.50  319.10  -66.49  217.02
   17.00  -64.69  334.10  -71.33  230.80
   18.00  -64.95  349.10  -75.05  250.61
   19.00  -63.59    4.10  -76.15  280.63
   20.00  -61.95   19.10  -74.39  313.94
   21.00  -60.78   34.10  -70.31  340.86
   22.00  -58.94   49.10  -63.88  359.14
   23.00  -57.84   64.10  -58.31   13.73
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.00   79.10  -71.38   56.15
    1.00  -73.89   94.10  -68.58   67.63
    2.00  -74.74  109.10  -66.30   77.68
    3.00  -75.21  124.10  -64.29   86.29
    4.00  -75.93  139.10  -63.11   94.85
    5.00  -77.12  154.10  -62.92  103.48
    6.00  -77.46  169.10  -62.39  110.98
    7.00  -76.71  184.10  -61.17  118.09
    8.00  -76.80  199.10  -61.26  125.63
    9.00  -77.21  214.10  -62.12  132.97
   10.00  -76.68  229.10  -62.52  140.69
   11.00  -76.30  244.10  -63.53  148.58
   12.00  -76.04  259.10  -65.07  156.53
   13.00  -75.81  274.10  -67.06  164.52
   14.00  -75.75  289.10  -69.58  172.19
   15.00  -75.53  304.10  -72.36  180.24
   16.00  -75.79  319.10  -75.75  186.81
   17.00  -75.93  334.10  -79.28  193.34
   18.00  -75.52  349.10  -82.83  203.61
   19.00  -74.60    4.10  -86.41  229.43
   20.00  -74.23   19.10  -88.08  333.50
   21.00  -73.47   34.10  -83.98   17.80
   22.00  -73.60   49.10  -79.87   36.55
   23.00  -72.83   64.10  -75.17   45.16
</PRE>


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