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- Q135 - Navigation Problems: Oceans
378. On 7 November your 0830 zone time position was LAT 27°36.0'N, LONG 162°19.0'W. Your vessel was steaming on course 289°T at a speed of 19.0 knots. An observation of the Sun's lower limb was made at 0945 ZT. The chronometer read 08h 43m 11s and was slow 01m 51s. The observed altitude (Ho) was 38°21.1'. Local Apparent Noon (LAN) occurred at 1138 zone time. The observed altitude (Ho) was 45°35.0'. What was the longitude of your 1200 zone time running fix?
The correct longitude of the 1200 zone time running fix is determined by advancing the 0945 Sun sight LOP and the LAN LOP to 1200 and intersecting them, resulting in a position of 16338.8'W.
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