pls explain,don`t state just relativity or atmospheric conditions...drift is random or systematic?
about relativity i heard before,but i guess no prove whatsoever...i incline to believe in electronics and random values...
thank you for answers
Anonymous
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http://arxiv.org/abs/0905.3313
... variations in total electron content
http://arxiv.org/abs/1102.0661
... seasonal effects analyzed.
Probably not random, probably systematic, but still under investigation (only two papers at arxiv.org, which is surprising). I doubt it will be a single candidate.
?
It is called gravitational time dilation.
The stronger the gravitational field, the slower the clocks run according to a distant (zero gravity) observer.
So to someone in outer spac, clocks near the surface of the earth run slower (more gravity) than the clocks further from the earth in a satellite (less gravity).
Hence, for us on earth, clocks in satellites run faster systematically.
The effect is small but important enough that it needs adjustments for GPS etc to work.