Hover or tap underlined Spanish terms to see their translation and exam tip.
Desde la situación estimada 48º 19' S, 142º 28' E, se observan simultáneamente dos astros, obteniéndose los siguientes determinantes punto aproximado: Dte. *1: Z = 152º, a = ‒5,7'; Dte. *2: Z = 239º, a = +2,1'; Calcular la situación.From DR position 48º 19' S, 142º 28' E, two bodies are observed simultaneously, giving: Body 1: Z = 152º, Δa = -5.7'; Body 2: Z = 239º, Δa = +2.1'. Calculate the position.
Show the answer
Correct answer: b) 48º 15.0' S, 142º 20.8' E
Why it is correct
The lines cross at 48º 15.0′ S, 142º 20.8′ E.
Why the others are not
- a) It does not match the working.
- c) It does not match the working.
- d) It does not match the working.
How to work it out in the exam
- Draw each line at right angles to its azimuth, Δa miles from the DR position, towards the body if positive.
- The crossing gives the fix.
Where this question comes from
- Junta de Andalucía · 2016 · 1ª convocatoria · CY Módulo de navegación · question 20 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.