Surface Delivery of Microrovers for Exploration: Design Challenges and Solutions
- Paper number
IAC-09.A3.6.12
- Author
Dr. Ed Chester, CTAE, Spain
- Coauthor
Mrs. Laura Aivar, UPC (University Politecnics Catalonia), Spain
- Year
2009
- Abstract
Several excellent designs for extremely small, mobile surface elements already exist and are well developed for a range of target bodies. Payloads, range, and overall capability vary considerably, but in general the communications requirement has led to a derived requirement for in-situ communications relay support. This naturally leads to a tethered concept that is then re-used for power supply, thus increasing the lifetime, but reducing the autonomy of microrovers. The best-known example is the Nanokhod rover developed by vH\&S, a 2kg tracked and tethered system suitable for use in a wide variety of locations. A major element affecting the overall viability of microrovers to implement or support exploration missions is missing: the delivery and deployment at their target location. This paper examines the requirements (particularly in terms of energy changes) for safely delivering microrovers to a planetary surface and deploying them for their own mission. Scenarios are subsequently developed from the requirements, covering single and multiple microrovers for a dedicated mission, and also as piggyback elements for other lander/rover concepts. A delivery system design is presented for the multiple microrover scenario, with preliminary top-level budgets. We conclude with a brief trade-off in terms of science value, system complexity, and operational context for microrovers.
- Abstract document
- Manuscript document
(absent)