On 26 July your 1901 ZT position is LAT 28°28'N, LONG 157°16'E when you take an observation of Jupiter. The chronometer at the time of the sight reads 08h 54m 34s and is 06m 24s slow. The sextant altitude (hs) is 33°51.5'. The index error is 2.8' off the arc, and the height of eye is 48 feet. What are the azimuth (Zn) and intercept (a) for this sight using the assumed position?

Question

Accepted Answer

Option B: Zn 248.2°, a 34.2' T. Applying the Sight Reduction Tables for Air Navigation (Pub. 249) or Nautical Almanac procedures, the sextant altitude is corrected for index error and dip. Comparing the computed altitude (Hc) with the observed altitude (Ho) yields an intercept of 34.2' toward, with an azimuth of 248.2°.