On 20 February your 0530 ZT DR position is LAT 24°15.0'N, LONG 137°33.0'W. You are on course 033°T at a speed of 18 knots. You observed 3 celestial bodies. Determine the latitude and longitude of your 0600 running fix.

Correct Answer: Option C — LAT 24°27.5'N, LONG 137°31.8'W

Applying a 30-minute run at 18 knots along course 033°T establishes the vessel's movement vector. Shifting the earlier celestial intercepts along this run line and intersecting them determines the definitive running fix at 0600 ZT, resulting in LAT 24°27.5'N, LONG 137°31.8'W.