photo

John Keevil


retired

Last seen: 11개월 전 2016년부터 활동

Followers: 0   Following: 0

메시지

Formerly employed as an engineer designing microwave antennas and power combiners etc. Currently interested in the mathematics of Orbital Mechanics.

통계학

All
  • First Answer
  • Personal Best Downloads Level 1
  • 5-Star Galaxy Level 1
  • First Submission

배지 보기

Feeds

보기 기준
활동 없음