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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>
27 Sep 1997 20:25:02 yearsecs  23315102
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -59.82  122.60  -48.92   68.74
    1.00  -60.50  137.60  -47.62   80.96
    2.00  -61.18  152.60  -46.92   92.51
    3.00  -61.86  167.60  -46.70  103.72
    4.00  -60.93  182.60  -45.29  114.38
    5.00  -61.94  197.60  -46.42  125.20
    6.00  -63.06  212.60  -48.25  135.65
    7.00  -63.73  227.60  -50.19  145.98
    8.00  -64.20  242.60  -52.37  156.36
    9.00  -63.56  257.60  -53.89  167.59
   10.00  -63.18  272.60  -56.01  179.12
   11.00  -62.96  287.60  -58.66  190.95
   12.00  -62.99  302.60  -61.97  203.06
   13.00  -63.25  317.60  -65.88  215.97
   14.00  -63.73  332.60  -70.09  230.75
   15.00  -64.44  347.60  -74.25  249.26
   16.00  -65.37    2.60  -77.84  274.93
   17.00  -66.53   17.60  -79.74  310.55
   18.00  -66.50   32.60  -77.53  345.01
   19.00  -65.85   47.60  -73.00    7.29
   20.00  -64.27   62.60  -67.05   21.34
   21.00  -63.15   77.60  -61.87   33.90
   22.00  -61.59   92.60  -56.56   45.12
   23.00  -60.44  107.60  -52.21   56.82
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -72.79  122.60  -62.23   82.05
    1.00  -73.41  137.60  -60.81   91.25
    2.00  -74.26  152.60  -60.20  100.29
    3.00  -74.93  167.60  -59.90  108.85
    4.00  -76.69  182.60  -61.18  117.33
    5.00  -77.76  197.60  -62.21  124.82
    6.00  -77.81  212.60  -62.66  132.00
    7.00  -77.34  227.60  -63.04  139.49
    8.00  -77.87  242.60  -64.79  146.20
    9.00  -77.96  257.60  -66.50  153.03
   10.00  -77.81  272.60  -68.39  160.06
   11.00  -77.59  287.60  -70.58  167.15
   12.00  -77.28  302.60  -73.11  174.34
   13.00  -77.16  317.60  -76.07  180.79
   14.00  -76.97  332.60  -79.28  187.07
   15.00  -76.48  347.60  -82.69  195.01
   16.00  -76.34    2.60  -86.41  198.58
   17.00  -75.33   17.60  -89.35  345.05
   18.00  -75.12   32.60  -85.29   33.34
   19.00  -75.42   47.60  -81.25   46.90
   20.00  -74.93   62.60  -76.98   52.75
   21.00  -73.57   77.60  -72.20   56.87
   22.00  -73.41   92.60  -68.51   65.63
   23.00  -72.37  107.60  -64.44   72.58
</PRE>


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