Anomalies in spacecraft velocities |
Anomalies in spacecraft velocities |
Feb 29 2008, 07:06 PM
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Member Group: Members Posts: 117 Joined: 7-December 06 From: Sheffield UK Member No.: 1462 |
Very interesting story on SPACE.com regarding currently unexplained anomalies in the velocities of spacecraft after their Earth flybys.
http://www.space.com/scienceastronomy/0802...ft-anomaly.html Perhaps the twisting of spacetime induced by Earth's rotation could be gently altering the spacecraft's velocity. http://www.voanews.com/english/archive/200...FTOKEN=51791561 In any case its pretty cool to have an unexplained force meddling with our best laid plans. -------------------- It's a funny old world - A man's lucky if he gets out of it alive. - W.C. Fields.
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Feb 29 2008, 08:00 PM
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
According to one of Emily Lakdawalla's Planetary Society Blog entries,
at least some relativistic effects are already accounted for in spaceflight. Accounting for general relativity at Mercury "It turns out that general relativity is routinely accounted for in spacecraft navigation.... the NASA navigation software developed at JPL....incorporates the Ted Moyer formulations for navigation which includes mathematical expressions that describe the effects of general relativity." |
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