EXERCISE 37- LONGITUDE BY CHRONOMETER STAR (Numerical Solution)

  1. On 29th Nov 2008, AM at ship in DR 25˚ 30’S 107˚ 20’W, the sextant altitude of the star RIGEL was 35˚ 10.3’ when the GPS clock showed 11h 29m 20s. If IE was 2.8’ on the arc & HE was 12m, find the direction of the LOP and the longitude where it crosses the DR latitude.

                                           d       h    m   s
GMT                                  29    11  29  20
LIT (W)                              (-)    07  09  20
LMT                                  29    04  20  00

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