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Computing observation geometry for small satellites
Most solar system science missions need a variety of observation geometry–quantities such as position and velocity, range and altitude, viewing latitude and longitude, and lighting angles– to support mission engineering, science planning, and science data analysis activities. NASA's "SPICE" system offers one popular, multi-mission means for doing just that. SPICE comprises both data files, called kernels, and a SPICE software Toolkit that is available in many popular languages. A mission operations center produces the SPICE kernel files. Scientists and engineers write their own applications programs to address some need, and they include a few SPICE subroutines within that code to do the needed geometry computations. The SPICE system has been in use throughout NASA’s planetary science mission domain since 1991, and it has slowly spread to most major space agencies around the globe since then. The SPICE software is available in most popular languages, and for most popular platforms. The code is thoroughly tested before being released, and new versions of the Toolkit are always backwards compatible. The SPICE components are freely offered to everyone, and have no export, licensing or similar restrictions. Maybe using SPICE would work for your CubeSat or SmallSat mission?
Development of New AC and DC Magnetometers for Small Satellites
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Active Thermal Architecture for Cryogenic Optical Instrumentation (ATA): Active Thermal Control for CubeSats and Small-Satellites
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Development of New Research Quality Low Resource Magnetometers for Small Satellites: New Magnetometer Enables Boom-Less Cubesats
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The Active Thermal Architecture: Active Thermal Control for Small-Satellites
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