Cdr. Robert E. Williams, USESSA

Peer Reviewed

Abstract: DURING THE PERIOD February 1, to April 30, 1963, the Coast and Geodetic Survey Ship EXPLORER participated in a multi-ship, multi-nation synoptic oceanographic survey of the topical Atlantic. The EXPLORER’s assigned track was from Dakar, Senegal, south along 20°W longitude to 15°S latitude. Fueling stops were made at Dakar, Senegal; Freetown, Sierre Leone; and Recife, Brazil. During this 90-day period, ship position control was obtained by astronomic sights exclusively, with the normal visual fixes for landfalls and departures. Weather conditions were exceptional throughout the entire period with only one evening star sight missed along the Equator. This was due to heavy accumulation of dust in the air caused by the Harmattan winds off the Sahara Desert. No attempt was made to supplement astro control with Loran-A control in the western Atlantic.
Published in: NAVIGATION: Journal of the Institute of Navigation, Volume 13, Number 2
Pages: 146 - 147
Cite this article: Williams, Cdr. Robert E., USESSA,, "CELESTIAL NAVIGATION PROCEDURES", NAVIGATION: Journal of The Institute of Navigation, Vol. 13, No. 2, Summer 1966, pp. 146-147.
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