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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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<BODY BGCOLOR="#FFFFFF">



<H2>Current OVATION Boundary Information</H2><BR>
<PRE>
13 Apr 1997 15:31:53 yearsecs   8868713
 
             Equatorward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -63.39  203.03  -48.03  128.95
    1.00  -64.46  218.03  -50.01  139.12
    2.00  -65.48  233.03  -52.40  149.07
    3.00  -66.70  248.03  -55.35  158.69
    4.00  -66.50  263.03  -57.37  169.24
    5.00  -67.39  278.03  -60.72  178.91
    6.00  -67.47  293.03  -63.78  189.55
    7.00  -67.34  308.03  -67.11  201.12
    8.00  -68.03  323.03  -71.41  212.49
    9.00  -67.76  338.03  -74.99  228.75
   10.00  -67.36  353.03  -78.14  251.59
   11.00  -67.17    8.03  -80.30  284.74
   12.00  -67.21   23.03  -80.02  324.86
   13.00  -67.47   38.03  -77.34  356.81
   14.00  -67.95   53.03  -73.81   18.83
   15.00  -68.66   68.03  -70.39   35.83
   16.00  -69.57   83.03  -67.36   50.42
   17.00  -70.45   98.03  -64.64   63.05
   18.00  -70.23  113.03  -61.37   72.69
   19.00  -69.70  128.03  -58.37   81.67
   20.00  -68.70  143.03  -55.50   90.33
   21.00  -67.71  158.03  -53.20   99.44
   22.00  -65.93  173.03  -50.58  108.73
   23.00  -64.18  188.03  -48.51  118.63
 
              Poleward Boundary
     MLT    MLAT   MLONG    GLAT   GLONG
    0.00  -68.39  203.03  -52.93  128.59
    1.00  -69.46  218.03  -54.78  137.80
    2.00  -70.48  233.03  -57.03  146.68
    3.00  -75.29  248.03  -63.05  151.66
    4.00  -77.73  263.03  -67.00  155.88
    5.00  -78.04  278.03  -69.36  161.98
    6.00  -77.19  293.03  -71.27  170.51
    7.00  -76.43  308.03  -73.71  179.41
    8.00  -76.79  323.03  -77.08  184.46
    9.00  -76.41  338.03  -80.37  192.23
   10.00  -76.77  353.03  -84.04  193.37
   11.00  -76.54    8.03  -87.74  189.63
   12.00  -76.76   23.03  -87.91   67.95
   13.00  -76.54   38.03  -84.12   52.82
   14.00  -76.57   53.03  -80.23   57.06
   15.00  -76.29   68.03  -76.35   61.63
   16.00  -76.58   83.03  -73.02   69.42
   17.00  -76.31   98.03  -69.69   75.53
   18.00  -76.78  113.03  -67.39   83.59
   19.00  -76.40  128.03  -64.86   90.02
   20.00  -75.31  143.03  -62.10   96.16
   21.00  -73.19  158.03  -58.73  102.55
   22.00  -70.93  173.03  -55.62  110.27
   23.00  -69.18  188.03  -53.50  119.15
</PRE>


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