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    Re: Round Two: with a bonus ex-meridian
    From: Greg Rudzinski
    Date: 2013 Mar 4, 08:23 -0800

    Attached is a 19th century style reduction and plot.

    Greg Rudzinski


    [NavList] Round Two: with a bonus ex-meridian
    From: Jeremy C
    Date: 4 Mar 2013 06:48
    Let us change things up a bit with this round of stars. 5 bodies, with one that can be reduced as an ex-meridian of an upper transit (hint it's Achernar).

    We are going a bit faster now so you might want to advance the later sights for accuracy.

    Ship data:
    Date: 16 January 2013
    ZD -9 (note change)
    Crs: 049 Deg
    Spd 14.6 knots
    Height of eye: 83 ft
    Index error: 0.9' on the arc
    Temp 72 deg F
    Pressure 1016 mB.

    GPS fix at 1900-00 is Lat 20-38.6'N Long 120-48.9'E

    Star Data:

    Capella: 1900-27 Hs 40-40.2'
    Aldebaran: 1901-12 Hs 50-13.3'
    Rigel: 1902-27 Hs 32-03.8'
    Achernar: 1904-01 Hs 12-21.2'
    Fomalhaut: 1905-32 Hs 24-43.2'

    Fix a celestial fix at 1900 LT, "error" from the GPS fix, and standard deviation of the intercepts.

    Jeremy
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