@oldpacer Evidently you did not carefully read the article. It does not discuss using one SV for positioning. It does, in the context of analyzing t...

As autonomous positioning relies on the broadcast ephemeris, users interested in its accuracy might want to view this article:

I did not realize this was an old post. There are broken links embedded in some replies. For the Helmert transformation parameters used by the US NGS...

@oldpacer FWIW, any visit to Australia should include visits to the Gondwana Rainforests. Lovely, lush, verdant with abundant wildlife.

First of all, I am no expert on magnetic variation nor bearings. I am also familiar with the form and the source of its contents. I do see that the C...

Output in CSV format shown below. Registration is not required to run the tool. The registration request is an attempt to justify their support for th...

This addresses the changes between dates. Note the highlighted section. Note as well that access requires registration.

I would want any prospective service provider to indicate how they will validate their results? Providing plans using a priori error and accuracy valu...

Lovely area. Unfortunately there is no station name stamped on the disk.

Reviewing replies to the OP, I do not see reference to using intersection stations observed at known points as a means to verify astronomical observat...

Hey! The webinar is tomorrow! See original post.

I wish NGS would post these notices to this (and other) sites. While I have posted them in the past, due to travel and other issues, I have not done s...