EXERCISE 34 – AZIMUTH STAR (Numerical Solution)

3. On 01^ST May 2008, AM at ship in DR 62˚ 11’S 179˚ 58’ E, the azimuth of the star SPICA was 312˚(C) when the GPS clock showed 13h 00m 08s. If variation was 10˚E, calculate the deviation of the ship’s head.

                                d     h     m     s
GMT                       30   13    00  08
LIT (E)                            11   59   52
LMT                        01   01  00   00

GMT                      30d 13h 00m 08s

GHA Ȣ(30d 13h)       053˚  50.6’                                           Dec *         S  11˚  12.5’
Incr. (00m 08s)        000˚  02.0’
GHA Ȣ                       053˚  52.6’
SHA  *(+)                  158˚  35.1’
GHA *                       212˚  27.7’
Long (E)             (+)  179˚  58.0’
LHA  *                      032˚  25.7’

P = LHA
= 032˚  25.7’