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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>
07 Mar 1997 12:51:33 yearsecs   5662293
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -58.26  240.77  -46.51  157.77
    1.00  -58.78  255.77  -49.18  169.15
    2.00  -59.30  270.77  -52.15  180.72
    3.00  -59.82  285.77  -55.42  192.50
    4.00  -59.54  300.77  -58.34  205.43
    5.00  -60.43  315.77  -62.79  217.99
    6.00  -61.98  330.77  -68.00  231.42
    7.00  -63.14  345.77  -72.60  248.81
    8.00  -63.10    0.77  -75.26  274.46
    9.00  -62.57   15.77  -75.36  306.77
   10.00  -62.16   30.77  -72.79  336.45
   11.00  -61.97   45.77  -68.80  358.60
   12.00  -62.01   60.77  -64.76   15.78
   13.00  -62.26   75.77  -61.25   30.84
   14.00  -62.75   90.77  -58.30   45.07
   15.00  -63.45  105.77  -55.87   58.67
   16.00  -64.39  120.77  -54.07   71.35
   17.00  -65.54  135.77  -53.09   83.10
   18.00  -65.65  150.77  -51.66   93.48
   19.00  -64.63  165.77  -49.60  103.34
   20.00  -63.00  180.77  -47.40  113.41
   21.00  -61.84  195.77  -46.27  123.90
   22.00  -60.14  210.77  -45.30  134.78
   23.00  -59.02  225.77  -45.50  146.11
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.24  240.77  -59.47  150.25
    1.00  -73.02  255.77  -62.02  158.36
    2.00  -73.89  270.77  -64.97  165.85
    3.00  -74.47  285.77  -68.02  173.15
    4.00  -75.73  300.77  -71.81  178.03
    5.00  -76.90  315.77  -75.57  181.08
    6.00  -77.02  330.77  -78.88  186.20
    7.00  -76.33  345.77  -82.21  195.66
    8.00  -76.52    0.77  -85.94  195.96
    9.00  -76.67   15.77  -89.04  129.81
   10.00  -76.30   30.77  -86.03   49.39
   11.00  -75.95   45.77  -81.94   49.84
   12.00  -75.68   60.77  -77.87   55.37
   13.00  -75.54   75.77  -74.03   62.34
   14.00  -75.45   90.77  -70.54   69.73
   15.00  -75.11  105.77  -67.24   76.67
   16.00  -75.21  120.77  -64.79   84.58
   17.00  -74.80  135.77  -62.39   91.81
   18.00  -74.50  150.77  -60.60   99.50
   19.00  -74.23  165.77  -59.29  107.49
   20.00  -73.86  180.77  -58.33  115.65
   21.00  -72.83  195.77  -57.20  123.99
   22.00  -72.85  210.77  -57.65  132.56
   23.00  -71.94  225.77  -57.73  141.57
</PRE>


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