Here's an old thread on another fouorm where, after some muddle, good references were quoted and Michael Dennis (the master of projections and LDPs) g...

A single-parallel Lambert is equivalent to some two-parallel Lambert.?ÿ If round numbers are used for one, the other may need some extra decimals to m...

In older textbooks, this technique is called counting by twos (threes, fours, etc.). ... Combining the base (two, in this example) with the number of ...

I haven't done a session since December, but for some years I have been converting 4000sse files to Rinex using TEQC. It doesn't work without specifyi...

Congratulations on your first post to the forum, and thanks for adding good info to this thread.

The vertical effect probably won't be significant, but there is at least theoretical reason to think orientation could change it. If there is a large ...

Assuming the tripod is stable while you turn it and the level instrument isn't damaged, then it means the level bubble is out of adjustment. Try adju...

And how accurate do your survey measurements need to be, both with respect to each other, and with respect a large coordinate system (lat/lon, UTM, SP...

Yeah.?ÿ I once ended a 4+ hour session just as a thunderstorm broke.?ÿ Got soaked retrieving the gear.?ÿ That session was useless, with a huge pk-pk r...

Consistency is good.?ÿ It would definitely help to be consistent within a project.?ÿ However, for NGS submissions it needs to be right. The connector...

What does NGS do with the weather data, if anything?

The priority list is intended to reflect the reliability and accuracy of each type of information.?ÿ That has changed with time, whether or not the ru...

But only if the full metadata is there. Without datum, epoch, zone, and any scaling used, coordinates lose most of their value.

Drool, drool.?ÿ But that's too much for me even if legit and a possible bargain.