App G 04_Venus_Climate_Mission软件开发书籍.pdf

Venus?Climate?Mission ary?Science?Decadal?Survey?? Mission?Concept?Study Drogue Parachute Balloon Drop Sonde Mini-Probe Front Aeroshell Helium Tanks Drop Sonde Gondola Backshell Main Parachute with Gondola/Balloon System, Mini-Probe and Drop Sondes Entry?Flight?System GSFC ? JPL ? ARC ? Carrier Spacecraft - V enus Monitoring Camera Vis-IR ? Gondola/Balloon System - Neutral Mass Spect r ometer (NMS) - T unable Laser Spect r ometer (TLS) - Atmospheric Structu r e Instrumentation (ASI) - Nephelometer - Net Flux Radiometer (NFR) ? Mini-Probe - NMS; NFR; ASI ? Drop Sondes, - ASI; NFR VCM?Science? P ayload VCM?Science?Objectives ? Characterize the st r ong CO 2 g r eenhouse atmosphe r e of V enus, including variabilit y . ? Characterize the dynamics and variability of V enus’s superrotating atmosphe r e. ? Characterize surface/atmosphe r e chemical exchange in the lower atmosphe r e. ? Sea r ch for atmospheric evidence of climate change on V enus. ? Determine the origin of V enus’s atmosphe r e and the sou r ces and sinks driving evolution of the atmosphe r e. ? Understand implications of V enus’s climate evolution for the long-term fate of Earth. Function: Deliver and deploy Entry Flight System; orbit Venus munication relay for Gondola/Balloon system Power: 5 m2 solar panels Attitude Control: 3-axis stabilized (Spin up for release of the EFS) : dia. HGA; two-way S-m. with gondola; two-way Ka-m. with Earth Science Data Return: 14 Gb from Carrier Spacecraft Camera plus 142 Mb from Gondola/Balloon System; Mini-Probe and Drop Sondes Carrier?Spacecraft Function: 21 day science campaign at km float altitude Power: Lithium-thionyl chloride (Li-SOCl 2 ) primary battery : Two way S-band (plus Doppler) to Carrier Spacecraft; one way S-band from Mini-Probe and Drop Sondes Science Data Return: 135 Mb from Gondola science + 7 M