> > Total station with filter, I'm pretty sure it's the hour angle method, sighting trailing edge, 3 direct 3 reverse, circa 1990 Radio Shack time cube, Shot on even minute ( crews can't hang on to a stop watch ) Mean angle average 3.4 seconds
>
> I bought my Radio Shack time cube around the same time, it's about bit the dust. Here's a number, 303-499-7111, that gives UTC, might help if they find themselves in an area with poor radio reception.
I havent had the occasion to do a solar or polaris observation in quite some time. The last one was for a new tower for WTID in Tuscaloosa, AL. We used a worksheet in the field to record and reduce the data, but I cant seem to locate it. Does anyone have a form or possibly .xls that they are using that they would share?
i believe scott zelenak might be convinced to forward his excel astro routine
I guess, if you are going to be a college-educated Professional land surveyor you should know how to do stellar observations and have a good grasp of spherical geometry (and geodesy). If you are going to be a technician, I might suggest that you could get by without ever studying it.
Out of curiosity, did you get the answers you expected to? A lot of us "old-timers" have a great respect for solar and other stellar observations.
Solar/Polar comps
Look for SPADE on Mike Craymer's site (craymer.com)
I've got a link on my page (888SURPASS.com) also
Prof Emeritus daw
O yes, the nefarious 1320.25' yes, Hmmm ok, now I get it.
That number is significant.
It is a number I made up. But, it is close enough to 1320, that it does not raise an eyebrow. But, it does make some of the deeds overlap.
To develop a 1:5000 closure, you would be allowed about 1' of error, per mile, while traversing around a Section of land. So, assuming it all happened at one place, then you have a total error, after traversing around a section of 4'. 3.75' is just under that. And, that is where that number came from.
We have met that old standard of 1:5000 for rural property, it is all piled in one place, and here, we found it, 3.75' off. And, we are ALL within min standards, for 1980. (See Arkansas Min standards)
Nate
