I didn't understand his comment about miles off a modern survey. Monuments over measurements, and even if you use NAD83 latitudes instead of proper a...

I've watched archaeologists use a total station. It isn't anything like boundary or construction work where a surveyor can come in, make some measurem...

@paden-cash?ÿ The correct color cap is neither of those.?ÿ Like the joke about the "Troubles" in Northern Ireland, when somebody put a gun in your b...

Wow! I hadn't noticed that.?ÿ Great. It will help when people don't quote the relevant part of what they are replying to.?ÿ I try to do that, and edi...

Or just the "Somebody is wrong on the internet" need to "correct."

If you haven't studied surveying, I always recommend the Wolf & Ghilani text Elementary Surveying. It doesn't change a lot between editions?ÿ so n...

My post above was misleading about where Laplace correction is useful. It isn't used with GNSS data. But I tend to forget it may be used in other situ...

I'm pretty sure the convergence angle for one SPC zone is not usable in another SPC zone, so TU2594 would be relevant and the others I looked at that ...

I believe the Laplace correction is only used to relate astronomical observations to geodetic ones. It is dependent on the tilt of the geoid at your l...

Where did you get the convergence angle??ÿ Isn't it this mark KAILUA? TU2968;?ÿ SPC HI 2 - 57,366.056 533,654.158 MT 0.99998066 +0 06 54.4 or this o...