expression, godan verb (-ru)
be on track; go according to plan
Figurative use: a project, plan, or activity is proceeding smoothly as expected.
See also: 軌道に乗せる
新製品の開発は順調に軌道に乗っている。
Development of the new product is smoothly on track.
expression, godan verb (-ru)
enter orbit
Literal use: a spacecraft or satellite enters its intended orbit.
人工衛星は予定の軌道に乗った。
The satellite entered its planned orbit.