NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Hyperbolic Orbits and the Planetary Flylby AnomalySpace probes in the Solar System have experienced unexpected changes in velocity known as the flyby anomaly [1], as well as shifts in acceleration referred to as the Pioneer anomaly [2-4]. In the case of Earth flybys, ESA s Rosetta spacecraft experienced the flyby effect and NASA s Galileo and NEAR satellites did the same, although MESSENGER did not possibly due to a latitudinal property of gravity assists. Measurements indicate that both anomalies exist, and explanations have varied from the unconventional to suggestions that new physics in the form of dark matter might be the cause of both [5]. Although dark matter has been studied for over 30 years, there is as yet no strong experimental evidence supporting it [6]. The existence of dark matter will certainly have a significant impact upon ideas regarding the origin of the Solar System. Hence, the subject is very relevant to planetary science. We will point out here that one of the fundamental problems in science, including planetary physics, is consistency. Using the well-known virial theorem in astrophysics, it will be shown that present-day concepts of orbital mechanics and cosmology are not consistent for reasons having to do with the flyby anomaly. Therefore, the basic solution regarding the anomalies should begin with addressing the inconsistencies first before introducing new physics.
Document ID
20090010275
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Wilson, T.L.
(NASA Johnson Space Center Houston, TX, United States)
Blome, H.J.
(University of Applied Sciences Aachen, Germany)
Date Acquired
August 24, 2013
Publication Date
January 1, 2009
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
JSC-17819
Meeting Information
Meeting: 40th Lunar and Planetary Science Conference
Location: Texas
Country: United States
Start Date: March 23, 2009
End Date: March 27, 2009
Distribution Limits
Public
Copyright
Public Use Permitted.
No Preview Available