noun
sun-synchronous orbit; heliosynchronous orbit
Technical term in astronomy and satellite engineering. Often abbreviated as SSO.
多くの地球観測衛星は太陽同期軌道を利用している。
Many Earth observation satellites use sun-synchronous orbits.
Compound of 太陽 (sun), 同期 (synchronization), and 軌道 (orbit). A calque of the English term 'sun-synchronous orbit'.