Hi Hilmar,

Very interesting. I snipped the below paragraph from the article to which you referred.

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Ciufolini and Pavlis say the total uncertainty in their measurements is plus or minus 10% if they allow for unknown sources of error, and they hope to improve on this accuracy with a new satellite called Weber-sat. Meanwhile results with an accuracy of 1% are expected when the Gravity Probe B mission publishes its first results in early 2006.

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The result of the Gravity Probe B Mission will not be released until early 2006, as the experiment must be completed and the data analyzed. I'm still not sure what gravity is, but it must be based more on mass rather than size; because of the fluctuation in earth's gravity.

Regards,

LelandJ