The International Society for Optical Engineering provides this searchable and browsable database of over 90,000 abstracts from SPIE publications. The collection may be browsed by year, proceedings volume, or technology. A telnet interface allows searching of proceedings volume citations back to 1963. Ordering information is available at the site. A volunteer group sponsored by the National Space Society.
Plans are to launch ultra-cheap small Earth Observation platform.
The NASA Space Environments Effects Branch features a wealth of environmental data for satellite mission design. Orbital dynamics The Advanced Satellite Communication page features a comprehensive introduction to Orbital motion , and includes numerous formulas, diagrams and constants. Thermal design Thermal Connection , maintain a page with extensive thermal design data, and describing their thermal design software. Radiation design NASA maintains a Radiation effects data base for components. Links here are provided as resources.