Physics – Plasma Physics
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jgcd...33.1115a&link_type=abstract
Journal Of Guidance, Control, And Dynamics Vol. 33, No. 4, pp. 1115-1122, July-August 2010
Physics
Plasma Physics
Scientific paper
Mission engineers have detected an unexpected anomaly on six spacecraft during low-altitude gravity-assist maneuvers around Earth. This Earth flyby anomaly involves an acceleration that, to date, researchers cannot account for based on known forces or errors in measurement or modeling. This paper evaluates Lorentz accelerations associated with spacecraft electrostatic charging as a possible explanation for the Earth flyby anomaly. This analysis does not explicitly address plasma physics but, instead, bases its conclusions on fundamental six-state flight dynamics. The analysis focuses on the Near Earth Asteroid Rendezvous spacecraft, because it exhibited the largest anomalous error with the smallest estimated residuals. The analysis takes the form of a boundary-value problem in which vector-disturbance time histories are found numerically through nonlinear optimization methods. The analysis identifies the unknown, but required, acceleration based on a model of the Lorentz-force interaction. The algorithm cannot converge on a solution that fully reproduces the anomalous error in all six orbital states. It is unlikely, based on this analysis, that Lorentz forces cause the flyby anomaly.
Atchison Justin A.
Peck Mason A.
No associations
LandOfFree
Lorentz Accelerations in the Earth Flyby Anomaly does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Lorentz Accelerations in the Earth Flyby Anomaly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lorentz Accelerations in the Earth Flyby Anomaly will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1225277