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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>
19 Sep 1997 22:03:16 yearsecs  22629796
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -65.21   98.64  -59.25   55.17
    1.00  -64.47  113.64  -55.42   66.06
    2.00  -65.57  128.64  -54.07   78.14
    3.00  -66.67  143.64  -53.37   89.29
    4.00  -66.48  158.64  -51.91   99.25
    5.00  -67.38  173.64  -52.02  109.56
    6.00  -67.46  188.64  -51.78  119.36
    7.00  -67.33  203.64  -51.91  129.07
    8.00  -68.01  218.64  -53.43  138.61
    9.00  -67.72  233.64  -54.55  148.46
   10.00  -67.33  248.64  -56.01  158.69
   11.00  -67.13  263.64  -58.03  169.12
   12.00  -67.17  278.64  -60.64  179.61
   13.00  -67.42  293.64  -63.88  190.06
   14.00  -67.91  308.64  -67.73  200.61
   15.00  -68.61  323.64  -72.04  211.73
   16.00  -69.53  338.64  -76.57  224.41
   17.00  -70.43  353.64  -80.96  242.09
   18.00  -70.20    8.64  -83.52  279.77
   19.00  -69.67   23.64  -82.69  330.35
   20.00  -68.67   38.64  -78.47    1.08
   21.00  -67.68   53.64  -73.35   18.84
   22.00  -66.76   68.64  -68.25   32.09
   23.00  -65.95   83.64  -63.53   43.90
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -73.11   98.64  -66.94   68.59
    1.00  -74.09  113.64  -64.92   78.97
    2.00  -75.01  128.64  -63.48   88.35
    3.00  -78.79  143.64  -65.41  100.50
    4.00  -80.75  158.64  -66.21  108.95
    5.00  -81.08  173.64  -65.89  115.11
    6.00  -80.57  188.64  -65.09  120.95
    7.00  -80.14  203.64  -64.75  127.24
    8.00  -80.55  218.64  -65.65  133.32
    9.00  -80.37  233.64  -66.36  139.58
   10.00  -80.62  248.64  -67.80  145.21
   11.00  -80.45  263.64  -69.22  151.16
   12.00  -80.39  278.64  -71.05  156.62
   13.00  -80.09  293.64  -73.05  162.28
   14.00  -80.00  308.64  -75.46  166.64
   15.00  -79.67  323.64  -78.03  170.85
   16.00  -79.80  338.64  -80.80  170.21
   17.00  -79.48  353.64  -83.59  166.52
   18.00  -79.74    8.64  -85.44  142.75
   19.00  -79.34   23.64  -85.78  103.26
   20.00  -78.39   38.64  -83.80   72.15
   21.00  -76.64   53.64  -80.09   57.70
   22.00  -74.90   68.64  -75.40   56.10
   23.00  -73.59   83.64  -70.74   60.68
</PRE>


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