| File type | APK |
|---|---|
| Version | 1.1 |
| Publisher | Navigational Algorithms |
| Release date | Mar 3, 2015 |
| Date added | Mar 3, 2015 |
| Os requirements | Android |
| Requirements | Compatible with 2.3.3 and above. |
| Total downloads | 13 |
| Price | Free |
Description
Celestial navigation.Fix by two circles of position: vector solution.With a sextant take two altitudes, correct them and obtain the observed altitudes: Ho.Take the Nautical Almanac and find the coordinates of the celestial bodies: GHA, declination.Use this app to calculate the two solutions, and to plot the circles of position, or circles of equal altitude on a google maps.Running fix:- The app moves the first sight to the time of the second, taking into account the motion of the observer.Method explained in the papers:- Vector Solution for the intersection of two Circles of Equal Altitude. (Andrs Ruiz Gonzlez. Journal of Navigation 2008, 61:355-365. The Royal Institute of Navigation).- Use of rotation matrices to plot a circle of equal altitude. (Andrs Ruiz. JOURNAL OF MARITIME RESEARCH, Vol 8, N3, 2011)Available on the author's website.Content rating: High Maturity
