Last seen: April 9, 2026 5:20 pm
I saw this. So after establishing the the big 25 ft drop, this may work on the equipment level.?ÿ
So many questions about the confines of the plant. If there??s a vertical shaft I??d hang a calibrated chain (tape) and read it by a level to get th...
@robertusa?ÿ well in crowd sourcing gps on bm, and more than enough obs at 4+ hrs is collected, then I guess more 2 hr data is a filter.?ÿ
@bill93 I realize that reprocessing with precise eph makes small to no difference with OPUS CORS, and slight difference in error estimate. And only a...
The doc says for GPS on BM: must be 4 hrs. I would??ve thought that in areas with many CORS sites, 2+ hrs be useful. Particularly with precise ephem...
@norman-oklahoma?ÿ What happened to the vid??ÿ
@bstrand Is that metric? I??m thinking lima bean.?ÿ
@dave-karoly I like it! A rod is a 1/4 ch. and a cable is a 1/10 NMi.?ÿ
@holy-cow Don??t we all?ÿ
@mathteacher football field: 1.3 ac? more than 3 maybe
@holy-cow That??s an estate, not a McMansion. A McMansion is 1/4 ac lot with the 3 story house built up to all 4 setbacks. Max sq area allowed on sma...
So are: as big as 747, as big as Empire State bldg, golf ball sized??, as big as a car, as big as a house, smaller than a grain of sand,?ÿ
One double on the 9th agrees with the description. (I mistakenly thought it was (+) for 1-7 secs, and (-) for 8-15 seconds. So I learned something.) ...
@shawn-billings I assume so.?ÿ
@lurker And sidereal day. Sidereal time. Right ascension. GHA LHA. Yeah, it??s not hard, but it??s easy yo forget?ÿ
@lurker This what blogs are for. btw, I had the same question about leap second and length of year a while back. I emailed NIST with the question and...
@lurker Oh no. Earth??s rotation has minor variations. And the SI second doesn??t quite match earth??s rotation. When leap seconds are added yearly...
@john-hamilton?ÿ