EDITORIAL INFORMATION

The Ninth Annual Space Flight Mechanics Meeting was held February 7-10, 1999 at the Beaver Run Resort in Breckenridge, Colorado. This mmeting is co-sponsored by the American Astronautical Society and the American Institute of Aeronautics and Astronautics and organized by the AAS Space Flight Mechanics Technical Committee and the AIAA Astrodynamics Technical Committee. This volume is the ninth of a sequence of Spaceflight Mechanics volumes. Consists of two parts totaling 1.600 pages.

(Extracted from the Foreword and the Preface).

GENERAL TABLE OF CONTENTS

-Foreword.

-Preface.

-Contents.

-Planetary Exploration and Asteroids.

-The Role of Independent Assessment in the International Space Station Program.
-A Viable Chemical/Aerobrake Architecture for Human Exploration of Mars.
-Lunar and Planetary Coronograph Explorer (LAPLACE) Mission Design.
-Departure Energies, Trip Times and Entry Speed for Human Mars Missions.
-Human Exploration of Mars: The Mars Surface Mission.
-Optimal Deflection of Earth-Approaching Asteroids.
-Mission Design for Mars Missions Using the Ariane ASAP Launch Capability.

-Mission Design and Analysis.

-Use of Lunar Gravity-Assists for Earth Orbit Plane Changes.
-Student Space Mission Prototyping Using TK Solver Plus.
-Earth Entry Trajectory Parametric Analyses Using the Program to Optimize Simulated Trajectories.
-A Future Look at Space Surveillance and Operations.

-Structural Dynamics and Controls.

-Three-Phase Motion of Systems with Elastic Members.
-Coning Stability Criteria and Optimal Passive Damping of Asymmetric Spinning Spacecraft Under Thrust.
-Fuel Slosh and Active Nutation Control Interaction Analysis Using Ellipsoidal Fuel Pendulums.
-Role of the Products of Inertia in Various Spacecraft Dynamics Problems.
-Understanding How Minimum-Time Control Optimizes Link Interaction Forces in Polar Coordinate Robots.
-Trade-Offs in Designing Learning/Repetitive Controllers Using Zero-Phase Filtering for Long Term Stabilization.

-Formation Flying and Constellation Maintenance.

-Satellite Formation Flying Design and Evolution.
-Exploiting Orbital Dynamics for Aperture Synthesis Using Distributed Satellite Systems: Applications to a Visible Earth Imager System.
-Optimal Station Keeping Strategies Via Parallel Genetic Algorithms.
-Mitigations of Differential Perturbations in Clusters of Formation Flying Satellites.
-A Strategy for Maintaining Distance Between Satellites in an Orbiting Constellation.
-Dynamics and Control of Cluster Orbits for Distributed Space Missions.

-Trajectory Optimization.

-Optimal Spacecraft Trajectories Via Higher Differential Inclusions.
-Optimization of Ascent Trajectory and Related Design Issues for an Aerial Propellant Transfer Rocketplane.
-The Influence of Coordinate System Selection on Genetic Algorithm Optimization of Low-Thrust Spacecraft Trajectories.
-A Direct Trajectory Optimization Method for Constrained Interplanetary Missions.
-Fuel-Optimal Planar Interplanetary Trajectories Using Low-Thrust Exhaust-Modulated Propulsion.
-Optimal Interplanetary Trajectory Design Via Hybrid Genetic Algorythm/Recursive Quadratic Program Search.
-Optimal Aeroassisted Orbital Interception.

-MATLAB Special Session.

-A Flight Mechanics Analysis of Crew Return Vehicle (CRV) / International Space Station (ISS) Safe Separation.
-The Spin Axis Attitude Determination Package.
-Software-in-the-Loop for Attitude Determination and Control System Using SIMULINK and REAL-TIME WORKSHOP.
-Gravity-Assist Trajectory Design With MATLAB.
-MATLAB Toolbox for Rigid Body Kinematics.
-GPS Simulation and Analysis for Reusable Launch Vehicles Using the Constellation Toolbox for MATLAB.
-Control Design and Simulation of the Automated Transfer Vehicle Within the MATLAB/SIMULINK Environment.

-Orbit Determination I.

-Centimeter Level Orbit Determination for the Topex/Poseidon Altimeter Satellite.
-Mitigating the Effects of Selective Availability for Autonomous GPS-Based Satellite Navigation.
-Simulations of the Gravity Recovery and Climate Experiment (GRACE) Mission.
-Determining Precise Orbits for Topex/Poseidon Within One Day of Real Time: Results and Implications.
-Analysis of GPS and Satellite Laser Ranging (SLR) Data for ICESat Precision Orbit Determination.
-Precise Orbit Determination for Mars Global Surveyor During Hiatus and SPO.
-Radiation Pressure Forces, the Anomalous Acceleration, and Center of Mass Motion for the Topex/Poseidon Spacecraft.

-Attitude Dynamics and Controls.

-H Controller Design With Nonlinear Actuator.
-Bifurcation Analysis of Spacecraft Attitude Control Systems.
-Adaptive Realization of Linear Closed Loop Tracking Dynamics in the Presence of Large System Model Errors.
-GOES-10 Safe Hold Mode Attitude Dynamics and Control During Solar Array Anomaly Operations.
-Limit Cycles for Improved Performance in Self-Tuning Learning Control.
-Floquet Stability Analysis of Disturbance Cancellation Using Iterative Basis Function Feedback.