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    Re: It's four-planet fix time...
    From: Greg Rudzinski
    Date: 2018 Aug 5, 11:17 -0700

    Antoine,

    Hs is bubble octant reading raw no corrections. Hc is calculated altitude from assumed position. Sight reduction was done with Palm Pilot phone app which doesn't correct for temperature and pressure. The bubble octant has less than +/- 1' bubble error. Observations made from stability of land. Estimated temp 70° F  press. 29.86 in.

    Greg Rudzinski

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