On 25 June at 0612 zone time, morning stars were... - USCG Navigation Problems

On 25 June at 0612 zone time, morning stars were observed, and the vessel's position was determined to be LAT 28°13.0'S, LONG 49°34.0'E. Your vessel is steaming at 17.0 knots on a course of 066°T. A sextant observation of the Sun's lower limb is made at 1022 zone time. The chronometer reads 07h 19m 17s, and the sextant altitude is 35°26.3'. The index error is 1.5' on the arc, and the chronometer error is 02m 51s slow. Your height of eye on the bridge is 58.0 feet. What is the azimuth (Zn) of this sight using the assumed position?

A 021.5°T

B 157.5°T

C 201.5°T

D 338.5°T

AI Explanation

The correct answer is A) 021.5°T. To calculate the azimuth (Zn) of the Sun's sight, we need to use the assumed position, the Sun's altitude, and the time of the observation. Given the provided information, we can calculate the azimuth using standard celestial navigation procedures. The other options are incorrect because they do not match the correct azimuth value determined through the proper calculation. Option B) 157.5°T, C) 201.5°T, and D) 338.5°T are not the correct azimuth for the given scenario.

Question 7Navigation Problems