That's VERY strange (ghost in the machine). Did you select the three CORS for OPUS to use, or let OPUS chose them? Loyal

@inkcurt I just sent you an Email

Unless we are talking about a "BLM True Bearing, True Distance" PLAT, in which EACH line (a loxodrome unless DUE North/South) is a function of the uni...

I'm not sure that I "despise" it, but it IS somewhat ambiguous, which is NOT a good thing. If used on a PLAT, it should be explicitly defined (eg. Ast...

@mathteacher The only way I know of...is to simply TIE a few of the (supposed to be SPC) points into the NSRS, and "do the math." Obviously if "one"...

ASSUMING that: 1. State/County #1 ƒ??State Planeƒ? data is expressed in NAD83(2011), and 2. State/County #2 ƒ??State Planeƒ? data is expressed in NA...

In Civil 3D...no clue. I do have a bunch of DOS programs that will do that slicker than snot on a doorknob. ????

Just curious, but what does "state plane" have to do with anything. Loyal

I disagree (a LOT) with that statement. Would a Title Attorney hire a paralegal (or rookie attorney) to review a title abstract, if he/she couldn't re...

I resemble that remark!

Right on Dave, I use NOTEPAD for all sorts of things, including RINEX files, as well as those[sometimes] godawful spreadsheet created .csv files, alth...

Ditto! I always get the extended output report, so after I save the entire file, I cut the top 50 lines (or so) off the top, and print it/them out. Th...

I dunno John. I do know that PBO (and UNAVCO) stations are configured in several different ways, and some that are NOT in the NGS CORS Network, are li...

Pith Cutter...someone gave me one of these bout 100 years ago, but I have no idea where it is now.

Use "TPS2RIN"?ÿ or "TEQC" to convert the file to RINEX. You can do a search to find links to either program. Loyal

@paden-cash I here ya buddy! A couple of years ago a local surveyor here in town (that I have known since he was a 3' tall) mentioned recovering a T...

Thanks John. I have always "preferred" to identify only Continuously Operating Reference Stations that are part of the NGS Network (NCN?) as CORS. If ...

@john-hamilton Well John, if it's within 10km of the Black Rock, it AIN'T a "CORS," it must be a RTN network station, because the nearest CORS is abo...

Black Rock Playa??? Man-o-man, that brings back some memories! I spent several years working around Rosebud (just East of the Black Rock) back in the ...

@gene-kooper I spent a week or so on the East Coast of Prince of Wales Island (SE Alaska) back in the 80s, on a hard rock exploration project. BEAUTI...