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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 Oct 1997 01:25:56 yearsecs  25493156
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.26   47.75  -73.43    8.33
    1.00  -66.77   62.75  -69.86   26.41
    2.00  -67.58   77.75  -66.73   41.95
    3.00  -68.40   92.75  -63.86   55.57
    4.00  -68.07  107.75  -60.26   66.10
    5.00  -68.76  122.75  -58.23   77.24
    6.00  -68.77  137.75  -56.16   87.01
    7.00  -69.25  152.75  -55.16   96.90
    8.00  -70.54  167.75  -55.46  106.91
    9.00  -70.36  182.75  -54.76  116.05
   10.00  -69.95  197.75  -54.34  125.21
   11.00  -69.74  212.75  -54.71  134.46
   12.00  -69.67  227.75  -55.77  143.79
   13.00  -69.82  242.75  -57.50  153.15
   14.00  -70.20  257.75  -59.83  162.38
   15.00  -70.81  272.75  -62.72  171.25
   16.00  -71.40  287.75  -65.98  179.88
   17.00  -71.47  302.75  -69.21  189.40
   18.00  -71.58  317.75  -72.81  199.51
   19.00  -70.90  332.75  -76.09  213.86
   20.00  -70.04  347.75  -79.24  234.31
   21.00  -69.28    2.75  -81.79  266.06
   22.00  -68.68   17.75  -82.14  311.22
   23.00  -67.56   32.75  -78.69  347.39
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -71.26   47.75  -78.48   23.61
    1.00  -72.40   62.75  -75.20   42.49
    2.00  -73.18   77.75  -71.86   55.77
    3.00  -78.55   92.75  -72.26   79.64
    4.00  -80.41  107.75  -71.00   90.04
    5.00  -80.81  122.75  -69.36   95.89
    6.00  -80.06  137.75  -67.13   99.90
    7.00  -79.31  152.75  -65.18  105.02
    8.00  -79.62  167.75  -64.63  111.73
    9.00  -79.74  182.75  -64.30  118.26
   10.00  -79.39  197.75  -63.89  124.79
   11.00  -79.35  212.75  -64.21  131.44
   12.00  -79.53  227.75  -65.16  137.89
   13.00  -79.31  242.75  -66.11  144.60
   14.00  -79.09  257.75  -67.46  151.31
   15.00  -78.88  272.75  -69.20  157.95
   16.00  -78.68  287.75  -71.31  164.40
   17.00  -78.46  302.75  -73.77  170.58
   18.00  -79.50  317.75  -76.91  170.75
   19.00  -79.74  332.75  -79.72  171.07
   20.00  -78.92  347.75  -82.68  174.48
   21.00  -77.10    2.75  -86.33  185.68
   22.00  -74.30   17.75  -88.30  322.08
   23.00  -72.56   32.75  -83.66    8.03
</PRE>


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