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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>
15 Mar 1997 00:55:34 yearsecs   6310534
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -61.37   60.64  -63.99   14.73
    1.00  -62.65   75.64  -61.75   31.30
    2.00  -63.75   90.64  -59.46   46.39
    3.00  -64.93  105.64  -57.47   60.38
    4.00  -64.68  120.64  -54.39   71.54
    5.00  -65.89  135.64  -53.46   83.28
    6.00  -66.17  150.64  -52.21   93.69
    7.00  -66.05  165.64  -51.04  103.78
    8.00  -66.41  180.64  -50.83  113.95
    9.00  -66.19  195.64  -50.57  123.88
   10.00  -65.77  210.64  -50.75  133.86
   11.00  -65.58  225.64  -51.74  143.99
   12.00  -65.62  240.64  -53.42  154.25
   13.00  -65.87  255.64  -55.68  164.55
   14.00  -66.35  270.64  -58.50  174.77
   15.00  -67.06  285.64  -61.90  184.74
   16.00  -67.99  300.64  -65.91  194.36
   17.00  -67.39  315.64  -69.02  207.29
   18.00  -67.40  330.64  -72.83  221.35
   19.00  -68.04  345.64  -77.08  237.93
   20.00  -67.15    0.64  -79.36  267.14
   21.00  -64.69   15.64  -77.76  305.94
   22.00  -63.21   30.64  -74.09  337.11
   23.00  -61.84   45.64  -68.67  358.27
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -66.37   60.64  -70.00   23.41
    1.00  -67.65   75.64  -67.34   40.27
    2.00  -68.75   90.64  -64.71   54.61
    3.00  -71.04  105.64  -63.59   69.13
    4.00  -74.25  120.64  -63.91   83.02
    5.00  -75.17  135.64  -62.76   92.18
    6.00  -74.15  150.64  -60.25   99.14
    7.00  -73.10  165.64  -58.16  106.83
    8.00  -73.97  180.64  -58.45  115.60
    9.00  -73.82  195.64  -58.19  123.92
   10.00  -74.20  210.64  -58.97  132.14
   11.00  -74.11  225.64  -59.80  140.43
   12.00  -73.96  240.64  -61.02  148.86
   13.00  -73.85  255.64  -62.73  157.37
   14.00  -74.14  270.64  -65.16  165.39
   15.00  -73.78  285.64  -67.46  174.41
   16.00  -73.83  300.64  -70.49  182.82
   17.00  -72.39  315.64  -72.88  195.81
   18.00  -72.40  330.64  -76.58  206.80
   19.00  -73.04  345.64  -80.81  217.57
   20.00  -72.27    0.64  -84.04  245.86
   21.00  -69.69   15.64  -83.33  304.39
   22.00  -68.21   30.64  -79.86  344.55
   23.00  -66.84   45.64  -74.66    6.84
</PRE>


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