I'm somewhat confused about just what you are saying, and the workflow you use. It seems that you prefer to download CORS data to resolve your vectors. By which you arrive at results for your base that equal those of OPUS within 0.01'. That means you prefer not to use OPUS. It doesn't make OPUS worthless. Quite the contrary.
I would agree that trying to resolve the (results of the) many vectors you might collect in a day radiating from your base with OPUS would be a loser. OPUS Projects maybe.?ÿ That is not what OPUS is intended to be used for.
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I typically only use OPUS on projects where the client requires it, but there are exceptions; I use OPUS-Projects whenever I have a geodetic network to process, sometimes as a check, sometimes because it lends credibility to the results. For the day-to-day stuff I do all my own processing in TBC. We don't really have any good monuments due to the subsidence issues, but the flip side of that is that we have an abundance of NGS CORS stations, especially in the south.
Exactly, OPUS isn't designed to be used as a daily work product.?ÿ
I will download the Local CORS point and it's associated dat files. Then bring in my file from the base. Then process that and fix it in place. I can't do that as simply using OPUS which requires me copy/pasting in the coordinate or manually manipulating the point and of course waiting on OPUS which usually isn't a long wait but still.......
Then I bring in the days work and if there is some static to resolve I can do it using the base and/or the CORS dat file.?ÿ
I do not occupy those points long enough for OPUS to deal with them and even if it did it would be a time consuming ordeal to use it.
The CORS points are normally collecting dat files at 1 second intervals, I usually download them at 5 second intervals which is perfect for me. My points may be 15 second or 2 minute locations depending on the task at hand and OPUS isn't going to work for that. Plus each file would need to be sent to it.?ÿ
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I think it really depends on where you are surveying and the VRS coverage in your area.?ÿ
Where I am (central Washington) existing NGS monuments are few and far between, particularly outside of populated areas. And similarly, if I venture into the mountains, the only place I get cel coverage is on the top of the ridges.
While commonly I can utilize a base/rover setup if I can access the ridge, often lack of roads, lack of legal access, or winter weather conditions keeps me down in the valleys.
in these cases, OPUS positioning is a lifesaver.
Like many things in survey, it isn??t a every job solution, but just another tool that can be utilized when other methods fall short.