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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>
23 Jul 1997 18:38:08 yearsecs  17606288
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.21  150.51  -52.26   93.63
    1.00  -66.08  165.51  -51.09  103.70
    2.00  -66.88  180.51  -51.30  113.96
    3.00  -67.67  195.51  -52.04  123.81
    4.00  -67.26  210.51  -52.17  133.53
    5.00  -67.88  225.51  -53.89  143.09
    6.00  -67.76  240.51  -55.36  152.98
    7.00  -67.92  255.51  -57.49  162.89
    8.00  -68.85  270.51  -60.65  172.11
    9.00  -69.08  285.51  -63.61  181.95
   10.00  -68.86  300.51  -66.61  192.81
   11.00  -68.66  315.51  -70.03  204.66
   12.00  -68.69  330.51  -73.85  218.09
   13.00  -68.95  345.51  -77.82  234.98
   14.00  -69.43    0.51  -81.54  260.15
   15.00  -70.14   15.51  -83.82  303.74
   16.00  -70.86   30.51  -82.66  353.07
   17.00  -71.14   45.51  -79.01   20.38
   18.00  -71.23   60.51  -74.86   36.47
   19.00  -70.62   75.51  -70.26   47.08
   20.00  -69.77   90.51  -65.73   56.45
   21.00  -68.95  105.51  -61.59   65.78
   22.00  -68.26  120.51  -58.09   75.19
   23.00  -67.35  135.51  -54.98   84.36
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -74.37  150.51  -60.48   99.25
    1.00  -75.31  165.51  -60.39  107.94
    2.00  -76.03  180.51  -60.55  116.09
    3.00  -80.34  195.51  -64.85  123.79
    4.00  -81.95  210.51  -66.77  129.36
    5.00  -82.30  225.51  -67.70  134.55
    6.00  -81.80  240.51  -68.16  140.46
    7.00  -81.10  255.51  -68.86  146.95
    8.00  -81.25  270.51  -70.60  151.77
    9.00  -81.25  285.51  -72.49  156.32
   10.00  -81.17  300.51  -74.57  160.31
   11.00  -81.20  315.51  -76.88  162.59
   12.00  -81.55  330.51  -79.20  160.69
   13.00  -81.35  345.51  -81.47  157.63
   14.00  -81.14    0.51  -83.44  147.16
   15.00  -80.91   15.51  -84.50  125.31
   16.00  -80.76   30.51  -83.78  100.50
   17.00  -80.53   45.51  -81.74   86.04
   18.00  -81.22   60.51  -79.01   86.18
   19.00  -81.29   75.51  -76.49   86.32
   20.00  -80.57   90.51  -73.76   85.80
   21.00  -79.04  105.51  -70.38   85.62
   22.00  -76.82  120.51  -66.28   87.14
   23.00  -75.38  135.51  -62.98   92.37
</PRE>


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