@shawn-billings I believe the uncertainties are reported along with the values. There are numerous documents and reports at both the IGS and IERS sit...
Another variation on the theme: ?ÿ
Here is another slide of possible interest. ?ÿ
Interesting stuff. As the M-PAGES is being developed for multiple-constellation use, I did not expect much impact on GPS-only processing. There shall...
Some additional info on the IGS contribution to the ITRF: Those interested in transformation values between ITRF 2020 and previous versions:
I received a PM asking me to provide information about a number of monuments. While willing to point to resources and provide examples of the tools av...
I see we continue to have communication problems. 1. You want a rough estimate of the error using "optical theodolites." An theodolite is a surveying...
Shown below are the input file for Phase 1, Output for two points in previous post, and header information for output file showing corrections applied...
I came across a USGS Technical Manual, USGS TM11-D1 here:
Recognizing that equipment and their users are fallible, reasonable expectations of achievable accuracy/precision have been developed. Standards and s...
FWIW, another way to long post. Using the two BM datasheets (copied below) and the Leveling Project Page information (my last post) we can compare th...
@michigan-left?ÿ Thanks for identifying benchmarks in the area. Note that the first two points (SS0852 and SS0849) have NAVD88 adjusted heights. The...
The OP indicates that he is unaware of tools to evaluate the heights of benchmarks published by NGS. Retrieving detailed information about these point...
@jph?ÿ I was going to suggest a checklist. In my experience, a well-designed checklist helps insure completion of all tasks/project elements.?ÿ Some...
@norman-oklahoma?ÿ I have had printed and bound some electronic books to satisfy my need to add comments, etc to the margins.?ÿ I prefer electronic ...
@jon-payne?ÿ Thanks for the tip about finding the names of chapter authors. Lots of familiar, well-respected names. With chapter lengths running from...
My understanding of your messages is that you want to determine heights of points in a water distribution system at refugee camps. If that is the case...
Those with an interest in the academic publishing industry might want to read:
