Colure

A colure is a great circle through the celestial poles.

We work on the quiet parts of orbit.

Thermal paths that open and close. Power that never sets. Compute and sensing where the shadow is.

Notes

Project Kelvin Zero · Whitepaper

Eclipse-minimising sun-synchronous orbits in a mean-Sun rotating frame

How a satellite can stay out of Earth’s shadow all year — why the usual dawn–dusk orbit falls just short, at what altitude it stops falling short, and how much margin you have.

Kyle Cooper & Yanni Nikas · October 2026

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