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Edwards, C., Stephens, S., Nandi, S., Di Nardo, S., Border, J., Anderson, J., et al. (1993) Tracking Galileo at Earth-2 Perigee Using the Tracking and Data Relay Satellite System. Technical Report, JPL NASA, USA.
https://ntrs.nasa.gov/citations/20210004808

has been cited by the following article:

• TITLE: A Derivation of the Empirical Anderson Formula for Earth Flyby Anomalies from the ASTG-Model

  AUTHORS: Golden Gadzirayi Nyambuya

  KEYWORDS: ASTG-Model, Anderson Empirical Formula, Solar Gravitational Anomalies

  JOURNAL NAME: International Journal of Astronomy and Astrophysics, Vol.16 No.3, July 31, 2026

  ABSTRACT: Following a detailed examination of the flyby anomaly phenomenon, we provide a clear derivation of Anderson et al.’s empirical formula based on the Azimuthally Symmetric Theory of Gravitation (ASTG-model). Our review concentrates on the foundational origins of Anderson et al.’s empirical formula. The ASTG-model, from which we will derive this formula, serves as a logical and natural extension of Sir Isaac Newton’s central gravitational potential theory: Φ=Φ( r ) . It proposes a gravitational potential that depends not only on the radial distance ( r ) but also on the azimuthal angle ( θ ), i.e.: Φ=Φ( r,θ ) . In the ASTG-model, it is suggested that the observed θ -dependence in gravitational potential arises from the spin angular momentum of the gravitating body in question. A significant and beneficial result of our derivation of Anderson et al.’s empirical formula is that—to first order approximation—it helps to partially address the ‘nagging’ and ‘bothersome’ free parameter problem that the ASTG-model encounters.