• DOI:10.1017/S1743921309990378
Corpus ID: 8852372

Astrometric solar-system anomalies

@inproceedings{Anderson2009AstrometricSA,
  title={Astrometric solar-system anomalies},
  author={J. Anderson and M. Nieto},
  year={2009}
}

• J. Anderson, M. Nieto
• Published 2009
• Physics

There are at least four unexplained anomalies connected with astrometric data. Perhaps the most disturbing is the fact that when a spacecraft on a flyby trajectory approaches the Earth within 2000 km or less, it often experiences a change in total orbital energy per unit mass. Next, a secular change in the astronomical unit AU is definitely a concern. It is reportedly increasing by about 15 cm yr −1 . The other two anomalies are perhaps less disturbing because of known sources of… Expand

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