Radiation Synthesis of New Molecules on Jupiter ’ s Icy

JIMO presents an opportunity to the planetary science community to expand the detailed knowledge (data) of the composition and geomorpology of Jupiter’s Icy Moons – Callisto, Ganymede, Europa. This data will be used to develop understanding of the origin and evolution of these bodies as well as determination of life and sustainability potential. This presentation focuses on a class of data collection payloads typically employed in a remote sensing mission that the JIMO space segment will provide. Described as “Push-Broom” imaging, this sensor concept is explored for applicability to JIMO. General data will be provided on state-of-the-art sensors currently being developed for the following missions: Mars-HiRISE (“The Peoples Camera”), Pluto-RALPH and National Polar-orbiting Operational Environmental Satellite System (NPOESS – “Weather-SATs”). Performance of these sensors will be normalized for use on the JIMO mission. For example, the HiRISE payload operating at a 100 km orbit would provide: 12.5 cm/pixel resolution; 2.5 km swath width coverage in 3 distinct panchromatic bands (Blue-Green, Red, NIR); and stereo imaging vertical height resolution of ~ 7.5 cm. Key systems engineering parameters (SNR, Aperture, IFOV, ground speed, LOS pointing, data rate, etc) will be discussed in relation to scientific metrics (Level 1 requirements) and their impact on mass/power/data volume. Environmental (e.g. Radiation, Solar illumination, etc.) as well as operational (e.g. LOS pointing control, data volume, etc) requirements and their impacts on these sensor system parameters will be evaluated using trade space examples. Current Ball IRAD efforts to: simplify this class of payload (mass/power reduction); as well as expanding the scientific collection capabilities (resolution for both spatial & spectral, sensitivity for low light levels) will be discussed. The intent is to provide the science community a basis for evaluating “data collection requirements” relative to their impact on the sensor system(s). Forum on Jupiter Icy Moons Orbiter (2003) 9048.pdf