subject
Guidance
Guidance: explore 2 source-linked works published from 1961 to 1961, with original documents and citations.
This collection is a preview while coverage and quality are evaluated.
Coverage and selection
Includes records with this source-supplied label or an explicit phrase match in their metadata. Matches indicate a mention, not proof that a paper uses a method or tests a material. Source versions are consolidated by DOI.
Sources: nasa. Collection updated 2026-09-18. Counts describe this index, not the complete source archives.
Remote Guidance of a Mothership-Daughtership Formation for Asteroid Exploration
This work presents an application of Model Predictive Control to maintain long-term stability for a three-satellite formation around the asteroid Apophis via remote guidance. The mothership and two daughterships perform tomographic characterization with a bistatic radar. The mothership estimates the states of all three spacecraft and determines the necessary control to maintain the desired antipodal daughtership states. An Extended Kalman Filter estimates the mothership states. A Batch Least Squares algorithm estimates the daughtership states and performs maneuver reconstruction for the mothership-administered thrust commands under thruster and gravitational uncertainty. The formulation maintains the antipodal angle with growing instability amidst these uncertainties.