The LARGEST potential error source is mis-levelment of the instrument. Since Polaris is at the same elevation angle as your latitude (±1° or so), the ...

Not sure what you mean by "real time ephemeris". I use MICA, which is the digital replacement for the Astronomical Almanac. The current version is 2.2...

PittsburghPittsburgh has a pretty cool county courthouse as well. Allegheny County CourthouseWhat makes it cool from a survey standpoint is that there...

Disks in water tables of buildings...I have seen a lot of City of Pittsburgh benchmarks which were set vertical in the water tables of old buildings w...

Liz: I believe that too, but from what I have heard others say, mine seems high. I was paying for auto insurance with this broker as well, and then I ...

opening ceremonyAlthough the general assembly was yesterday, and they had technical sessions this morning. the "official" opening ceremony was this af...

FIG does post programs and presentationsThe 12 hour flight on Malaysian Airlines was quite nice. Good entertainment system (lots of on demand choices)...

Thanks, Gavin. I intend to go to a lot of GNSS stuff even though I am the commission 6 rep. I wish they would merge Commission 5 and commission 6!

One of my duties as a US rep is to prepare a report, which used to go into the ACSM bulletin, not sure if that is still available. I will try to provi...

If the plane disappears, I will at least try to activate my SPOT locator beacon!

As others said...I think it would depend on whether it is a natural lake or a man made lake. I do a lot of work for the Army Corps of Engineers. At th...

Would it work for you if you extended the line back to, say, 122+00, stationed it, and then trimmed it?It does sound like a bug, though. Have you made...

That email from seco is what got me to thinking...I wonder if that 1.5 mm "pointing accuracy" is just that-meaning it can determine the horizontal ang...

Do you have a part number for the Leica version (GRZ101?)? What I have is a large Zeiss 360 and a large Seco 360. I can definitely see the effects of ...

I also do a lot of work under negotiated contracts that have fixed hourly rates. But, each task order is negotiated as a lump sum using number of hour...

That is kind of ridiculous. The majority of people who graduate from college with a degree in engineering do not obtain a PE. Perhaps a PE is more com...