On 15 November your 1030 ZT DR position is LAT 17°25'S, LONG 42°12'W. You are on course 059°T, speed 22 knots. Determine your 1200 position using the following observations of the Sun.
Official USCG Answer & Rule Citation
Correct Answer: Option C — LAT 17°06.8'S, LONG 41°44.3'W
Advancing the 1030 DR position for 1.5 hours at 22 knots establishes the 1200 DR. By applying the calculated intercept and azimuth from the solar observation to this position, the vessel's true fix is determined. This methodology follows standard celestial navigation practices required for maintaining accurate shipboard position logs.
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