On 7/15/11 12:10 AM, Hal Murray wrote:
Does anybody have a good graph for summer vs winter? I'd expect snow loading might be big enough to show up.
This is the kind of thing that Richard Gross at JPL fools with. As I recall, atmospheric drag changes on a cyclical basis too. And solid/liquid tides
Among other sources, data comes from all those geodetic GPS receiving stations feeding into gipsy
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