NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Mercator vs. Great Circle Charts
From: Richard B. Langley
Date: 2001 Aug 29, 9:32 AM
From: Richard B. Langley
Date: 2001 Aug 29, 9:32 AM
How can the Satnav equipment still be in use? The Transit (NNSS) satellites
are no longer broadcasting navigation data. Perhaps the ship has Russian
equipment? I believe Tsikada is still operational.
-- Richard Langley
Professor of Geodesy and Precision Navigation
On Wed, 29 Aug 2001, Young, Derrick wrote:
>Rick,
>
>I understand your comment about SATNAV - but I was on a cruise ship recently
>and they still had the equipment and it was still in use. Like many
>mariners - we seem to keep the old stuff "just in case." I still found
>folks onboard that thought it was funny that the quartermaster was taking
>dawn/noon and dusk shots with a sextant and then working out the position
>(by hand!) to confirm what the position that the GPS and LORAN-C were
>reporting.
>
>It felt good (to me) to see their accuracy was a bit better than mine (lots
>more practice!).
>
>derrick
>
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Richard B. Langley E-mail: lang@unb.ca
Geodetic Research Laboratory Web: http://www.unb.ca/GGE/
Dept. of Geodesy and Geomatics Engineering Phone: +1 506 453-5142
University of New Brunswick Fax: +1 506 453-4943
Fredericton, N.B., Canada E3B 5A3
Fredericton? Where's that? See: http://www.city.fredericton.nb.ca/
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