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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>
20 Jul 1997 12:31:04 yearsecs  17325064
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -60.65  248.44  -49.85  162.50
    1.00  -61.30  263.44  -52.75  173.54
    2.00  -61.95  278.44  -55.96  184.70
    3.00  -62.60  293.44  -59.55  196.00
    4.00  -61.81  308.44  -62.27  209.56
    5.00  -62.91  323.44  -67.04  222.18
    6.00  -63.80  338.44  -71.57  237.68
    7.00  -64.24  353.44  -75.24  259.12
    8.00  -64.79    8.44  -77.78  288.84
    9.00  -64.15   23.44  -76.46  323.60
   10.00  -63.74   38.44  -72.92  350.70
   11.00  -63.55   53.44  -68.67   10.21
   12.00  -63.58   68.44  -64.69   25.96
   13.00  -63.84   83.44  -61.25   40.24
   14.00  -64.32   98.44  -58.35   53.77
   15.00  -65.03  113.44  -56.04   66.52
   16.00  -65.96  128.44  -54.51   78.35
   17.00  -67.12  143.44  -53.85   89.46
   18.00  -67.10  158.44  -52.56   99.41
   19.00  -66.46  173.44  -51.09  109.16
   20.00  -64.94  188.44  -49.27  118.98
   21.00  -63.83  203.44  -48.49  129.20
   22.00  -62.38  218.44  -48.05  139.89
   23.00  -61.22  233.44  -48.45  151.07
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.43  248.44  -60.55  154.63
    1.00  -73.19  263.44  -63.26  162.60
    2.00  -74.09  278.44  -66.41  169.81
    3.00  -74.87  293.44  -69.77  176.42
    4.00  -76.90  308.44  -74.05  178.02
    5.00  -77.64  323.44  -77.48  180.77
    6.00  -77.81  338.44  -80.76  183.44
    7.00  -77.23  353.44  -84.13  188.55
    8.00  -77.83    8.44  -87.10  161.89
    9.00  -77.75   23.44  -87.19   87.06
   10.00  -77.60   38.44  -84.00   64.16
   11.00  -77.30   53.44  -80.32   61.92
   12.00  -76.98   68.44  -76.58   64.89
   13.00  -76.87   83.44  -73.11   70.55
   14.00  -76.78   98.44  -69.97   76.92
   15.00  -76.31  113.44  -66.93   82.87
   16.00  -76.17  128.44  -64.59   89.88
   17.00  -74.98  143.44  -61.74   96.04
   18.00  -74.80  158.44  -60.31  103.85
   19.00  -75.30  173.44  -60.02  112.13
   20.00  -74.81  188.44  -59.19  120.03
   21.00  -73.32  203.44  -57.83  128.31
   22.00  -73.05  218.44  -58.26  136.87
   23.00  -72.12  233.44  -58.59  146.00
</PRE>


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