Data and algorithms
星历
Ephemeris
A table or algorithm giving positions at given times.
Planet altitudes here come from astronomy-engine's ephemeris.
Related terms
- X-band — The 8–12 GHz band, used for high-rate data.
- Downlink — The satellite-to-ground data path.
- Orbit determination — Deriving an orbit from observations.
- TLE format — Two fixed-width 69-character lines describing an orbit.