?ÿ His great influence is shown by the comments on his passing by many of the leading figures in worldwide geodesy. I still refer to his notes on geo...

@mathteacher The acceptance of hand held positions was an attempt to provide better positions for scaled benchmarks. They are consider sui generis ty...

@bill-c But a bear to occupy...

@john-nolton et al, As I tried to say in previous posts, the NGS datasheets show five-decimal place seconds to insure that transformations to Cartesi...

@mathteacher ?ÿ In every datasheet download the first line is a link to a file describing the contents of the datasheet. The file provides this info...

As clarity and traceability is always my goal, I would do as Bill93 argues. Use the published coordinates then provide a disclaimer about the accuracy...

Bill93 better captured what I meant than I did. The following NGS datasheet extracts show a third-order intersection station (a courthouse spire) and...

I make a point of reading XKCD and Pearls Before Swine regularly. As most people have little sense of the magnitudes represented by differences in geo...

Missing images Original post attempt timed out...

@hpalmer In your post dated 23 Sept. you asked: ƒ??...why use OPUS except to check.ƒ? Aside from supporting users with receivers but no processing s...

My question is what did you use for your height comparison; Ellipsoid or orthometric? As for the Green Bank WVDOH operated CORS, looks like data and ...

@dino For what itƒ??s worth, in 2012 I assigned a lab to a class I taught involving the use of automated tools and their comparisons. While dated it ...

Mr Nolton, No trick involved. Copy the URL and paste it in your post. The magic occurs on the this siteƒ??s side.?ÿ?ÿ ?ÿ ?ÿ

or directly here:/p> link above is to a PDF of the article Mr Nolton mentions. It is ƒ??Open Access.ƒ??ÿ an article for the general reader is here:...

Of course at latitude 51d 28m 38s a difference of 5.4s is over 104 meters.?ÿ

I am not certain what the original poster is comparing. First he indicates that he has a 15h observation data from six different CORS. Does this mean ...

Yet another hijack... While one might wish that some things remain permanent and definitive, there is always change, better understanding. On a 2005...

I finally got around to viewing the new format on my smartphone. On my Android phone, the new format displays splendidly. The standard datasheet not s...

First of all, I have no involvement in this effort and no inside knowledge about it. I assume that the comprehensive ƒ??traditionalƒ? datasheet will ...