noun, noun which may take the genitive case particle 'no'
in orbit; on orbit
Used to describe something that is in orbit around a celestial body, often as a modifier with の or as an adverbial phrase.
人工衛星は軌道上で地球を回っている。
The artificial satellite is orbiting the Earth in orbit.
軌道上の宇宙ステーションから実験データが送られてきた。
Experimental data was sent from the space station in orbit.