@michigan-left?ÿ FWIW and relying on my often faulty memoryƒ?? The Program for the Adjustment of GPS Ephemerides (PAGE) was first developed to suppo...

@john-hamilton and @bill93 My suggestion was that instead of merely turning angles using multiple plate settings to quantify instrument performance t...

Should you take up the suggestion to actually turn multiple sets of angles, you might want to observe to intersection stations published by the NGS. ...

@john-nolton?ÿ I contacted NGS webmaster to get the document posted. Will advise. Cheers.

@john-nolton ?ÿ While I hope that everyone reading my posts will carefully read them; sometimes I do not do so myself. Your explanation is fine. I di...

@john-nolton?ÿ I hope no one was confused by my use of ƒ??baselineƒ? rather than ƒ??base line.ƒ? Having managed to get my link correct ;> I did ...

I agree that the recording book will look like that. However observationally the following will take place at the instrument: 1. Point on first targ...

These are tables showing the plate settings for observations (both Parkhurst and Wild T3). The idea is make observations on different parts of the pla...

Here is a potentially useful free digital manual.?ÿ Envious like other posters.?ÿ

To supplement Lee Greenƒ??s post I attach three images showing that there are CORS in SD, the location of NGS published monuments near Pierre, SD and ...

@bill93?ÿ Thanks for the link. Digging into the site, it appears that the extra resources for the book are implemented via a web site. Access require...

@john-nolton?ÿ I should more carefully read the OP before replying. I did not catch that it was Ghilaniƒ??s text on adjustments and not his surveying...

Reviewing the Amazon site for information about the most recent edition (15th) of Dr. Ghilaniƒ??s Elementary Surveying text, I see no mention of a dis...

Try ?ÿ

@john-hamilton?ÿ If you are still interested in geoid modeling a recent book (2017) by Sjoberg and Bagherbandi might be of interest. It is by no mean...

@john-nolton?ÿ I did not agonize over the choice. I recently came across the reproduction version, thought it would interest others, and posted in su...

@john-hamilton?ÿ As the green cover paperback has a black spline, maybe you need to search harder. I do not like the second edition as much. The seco...