ON-ORBIT DEMONSTRATION OF A NOVEL LEON- 2 BASED COMPUTER SYSTEM AND ITS
APPLICATION FOR ACQUISITION AND TRANSMISSION OF MILLI-G ENVIRONMENT AND ACOUSTIC
NOISE DATA IN THE COLUMBUS ATTACHED PRESSURIZED MODULE, STATION DETAILED TEST
OBJECTIVE 15010-E (LEON-2, SDTO 15010-E)
Research Area: Technology Development and Demonstration: Characterizing
Experiment Hardware
Expedition(s): 17
Principal Investigator(s): ● Helmut Luttmann, Astrium, Bremen, Germany
RESEARCH OBJECTIVES
The On-Orbit Demonstration of a Novel LEON-2 Based Computer System and Its Application for
Acquisition and Transmission of Milli-g Environment and Acoustic Noise Data in the Columbus
Attached Pressurized Module (LEON-2) study will assess the performance of a new generation
of on-board computer with respect to radiation behavior, vibrations, noise, and temperature.
EARTH BENEFITS
This study involves a demonstration of an on-orbit computer system assessing environmental
data, for the purpose of securing valuable payload data and crew health, which makes it
unrelated to Earth applications.
SPACE BENEFITS
Data acquired in this study will be used to assess radiation behavior and to correlate possible
disturbances of experiments carried out in scientific payloads with milli-g accelerations; eg, by
crew activities, re-boost, or docking of spacecraft to the ISS. Follow-up data analysis will provide
valuable data for scientific payloads and for crew health support with respect to otology (the
science of the ear and its diseases). Such technologies are necessary to continuously provide
state-of-the art computers for replacement and extension of the ISS data management system
and the ISS primary payload computers.
RESULTS
Analysis of data from LEON-2 is ongoing, and conclusive results will be published upon
completion of data analysis.
This investigation is complete; however additional results are pending publication.