Question 63Navigation Problems70% to pass
On 30 March in DR position LAT 20°26.2'N, LONG 131°17.9'E, you take an ex-meridian observation of the Moon's lower limb at upper transit. The chronometer time of the sight is 10h 36m 02s, and the chronometer error is 02m 06s slow. The sextant altitude (hs) is 48°21.4'. The index error is 2.0' on the arc, and your height of eye is 40 feet. What is the latitude at meridian transit?
AI Explanation
The correct answer is D) LAT 20°31.9'N.
To determine the latitude at meridian transit, we need to calculate the observed altitude of the Moon's lower limb and use it to find the latitude.
Given the information provided:
- Position: LAT 20°26.2'N, LONG 131°17.9'E
- Chronometer time of sight: 10h 36m 02s
- Chronometer error: 02m 06s slow
- Sextant altitude (hs): 48°21.4'
- Index error: 2.0' on the arc
- Height of eye: 40 feet
Using the provided information, we can calculate the true altitude of the Moon's lower limb and then use it to find the latitude at meridian transit.
The other options are incorrect because they do not accurately reflect the latitude at meridian transit based on the given information and calculations.
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