cspice

Observation geometry system for robotic space science missions

brewmacoslinux

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Observation geometry system for robotic space science missions

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Load SPICE kernels and query spacecraft position$ furnsh kernel.tsp

Generate brief summary of kernel file contents$ brief -c kernel.bsp

Merge multiple SPK (trajectory) kernel files$ spkmerge -a spk1.bsp spk2.bsp -o merged.bsp