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- Q135 - Navigation Problems: Oceans
291. On 25 October your 0430 ZT DR position is LAT 24°48' N, LONG 65°31' W. Your vessel is on course 030°T at a speed of 18 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0455 running fix. Body Zone Time GHA Observed Declination Altitude Mirfak 0430 110°23.1' 47°20.8' N 49°47.7' Regulus 0440 011°48.3' 37°49.9' N 12°03.5' Sirius 0455 066°19.5' 48°25.3' S 16°41.3'
Advancing lines of position to a common time along the vessel's track results in a running fix of approximately 2453'N, 6528'W, a reasonable adjustment from the 0455 DR position.
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