Engineering topics
Lyons, Dan
Publications and source records attributed to Lyons, Dan.
ExoMars/TGO Science Orbit Design
This paper describes the development of the science orbit for the 2016 ESA/NASA collaborative ExoMars/Trace Gas Orbiter (TGO) mission. The initial requirements for the ExoMars/TGO mission simply described the science orbit as circular with a 400 km altitude and a 74 deg inclination. Over the past year, the JPL mission design team worked with the TGO science teams to refine the science orbit requirements and recommend an orbit that would be operationally feasible, easy to maintain, and most important allow the science teams to best meet their objectives.
Preliminary Mars Planetary Constants and Models for Mars Sample Return
The following is a preliminary summary of the planetary constants and models that are recommended for use by the Mars Sample analysis and design.