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A comment on Satellites Confirm Sinking of San Francisco's Millennium Tower. Parent comment

Re:Satellites Confirm Sinking of San Francisco's Millennium ... by Dylan16807 on Friday November 25, 2016 @01:34PM (#13038855)
Not by a huge amount. Should be less than 2x, at least at some point during the day.
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Re:Satellites Confirm Sinking of San Francisco's Millennium ... by jofer on Friday November 25, 2016 @05:45PM (#13040387)
Much worse that 2x. Closer to an order of magnitude worse.
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Re:Satellites Confirm Sinking of San Francisco's Millennium ... by mturmon on Friday November 25, 2016 @09:50PM (#13041418)
Indeed. Just to anchor this with current state-of-the-art numbers, I took a look at the CSV data file linked to by the page referenced in my above comment:

https://news.ycombinator.com/item?id=13040765

The quoted horizontal standard errors of the daily position measurements are ~1.5mm. The vertical standard errors are ~5-7mm. (Not as bad as a factor of 10, but certainly worse than 2x.)

The vertical position measurement responds well to averaging of daily errors to beat down the RF propagation effects that cause them.

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