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- Q135 - Navigation Problems: Oceans
158. On 16 November your 1200 ZT DR position is LAT 26° 48.0' S, LONG 124° 32.0' W. Your vessel is on course 078° T, speed 17.0 knots. You observe an ex-meridian of the Sun's lower limb. The sextant (hs) reads 81° 41.3'. The index error is 1.5' off the arc, and your height of eye is 56 feet. The chronometer time of the observation is 08h 15m 32s, and the chronometer is 03m 06s fast. What is your latitude at meridian transit?
The correct latitude at meridian transit is 26 42.6' S, determined by correcting the sextant altitude for index error, dip, Sun altitude corrections, and applying the ex-meridian correction to obtain the Sun's true meridian altitude.
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