Trammell Hudson@th@social.v.st
Something is wrong with my math. The LOP aren't lining up correctly.
Trammell Hudson@th@social.v.st
Trammell Hudson@th@social.v.st
That's better, although now they all converge at the actual latitude but the dead reckoning longitude position.
Trammell Hudson@th@social.v.st
Fixed the LHA computation to use the DR longitude instead of the actual longitude and now the lines of position converge very close to the actual location!
Trammell Hudson@th@social.v.st
Intercept success! The Lines of Positions from two Sun sights converge on the actual location (within a few nautical miles at this scale)
Trammell Hudson@th@social.v.st
Controversial opinion: navigation is much easier with decimal math instead of minutes and seconds. I make far fewer mistakes with base ten than sixty, plus 0.01 is slightly smaller than 1/60. And besides 1' equals 1 nautical mile only at the equator so it's not really very useful on the rest of the planet.
rag. Gustavino Bevilacqua@GustavinoBevilacqua@mastodon.cisti.org
@th@social.v.st
In Italy surveying operations are made with gradians: a right angle is 100 gradians.
https://en.wikipedia.org/wiki/Gradian
Matthew Dockrey@attoparsec@clacks.link
@GustavinoBevilacqua@mastodon.cisti.org @th@social.v.st The secret third option!