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    Solutions to Leg 31
    From: Aubrey O´Callaghan
    Date: 1997 Jul 19, 8:45 AM

    1. TC and distance to Cape Leeuwin: 130.8T 4610.7 miles
       Course to steer: 126.7 T, Speed made good: 18.3 knots
    2. EP @ 19:16:24 (local time) 15:16:24 (GMT) 14d 21.8 min N, 56d 26.3 min E
    3. Body 1: Antares, Body 2: Vega, Body 3: Regulus
    Calculated ZN (from DR position) 133, 053.4, 273.5 degrees respectively
    4.Fix: 13d 47.0 min N 59d 07.4 min E
    Note this is some 161.1 miles at 102.5 T from the estimated position,
    perhaps there is an error in the drift ....
    5. From Fix position, calculated ZNs are: 274.9 T, 053.4 T, 134.5 T. This
    is exactly 5 degrees less than the compass reading. Therefore with a
    variation of 3dW, the compass deviation of 2dW has not changed.
    6. This question assumes midnight to be midnight GMT and not mdnight Zone
    Estimated Position 12d 02.2 min N, 61d 10.2 E
    7. TC and distance: 122.6 T, 838.9 miles
    8. compass course to steer: 182.4 deg C.
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