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出典:Wikipedia
出典:『Wikipedia』 (2011/07/05 10:15 UTC 版)
The flyby anomaly is an unexpected energy increase during Earth-flybys of spacecraft. This anomaly has been observed as a shift in the S-Band and X-Band Doppler and the ranging data. Taken together it causes a significant unaccounted velocity increase of over 13 mm/s during flybys.
Flyby anomaly