OICNW-1-1D
Measure the altitude of the sun at meridian passage (local apparent noon)
Function: Navigation at the operational level
| Competence | Knowledge, Understanding & Proficiency | Task |
|---|---|---|
|
Plan and conduct a passage and determine position |
A1.01 Celestial Navigation Ability to use celestial bodies to determine the ship’s position |
Measure the altitude of the sun at meridian passage (local apparent noon) |
Assessed in: MT-4371 Sea Term IV Deck
Condition
Aboard a ship at sea, given a standard marine sextant, a clear horizon, a clear or partly cloudy sky.
Behavior
Measure the altitude of the sun as it transits the meridian on which the vessel is located.
Standard
The altitude is within ±0.5 minutes of arc, after correction for index error, as compared with the altitude computed by the assessor, or within ±1.0 minutes of arc, after correction for index error, as measured by the assessor at meridian passage.
