411 REFERENCE · Wiktionary
P/2 orbit
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Noun
1
en spaceflight A lunar-resonant orbit about the Earth with a period of one-half that of the Moon's (P/2 is an orbit that is approximately a fortnight long).
Coordinate terms
orbits about the Earth
en LEO low Earth orbit
en MEO medium Earth orbit
en HEO high Earth orbit
en GEO geostationary equatorial Earth orbit
en GTO geostationary transfer Earth orbit
en GSO geosynchronous Earth orbit
en SSO Sun synchronous Earth orbit
en ICO intermediate circular Earth orbit
en LTO Lunar transfer Earth orbit
general orbits
en GEO geostationary equatorial orbit
en GTO geostationary transfer orbit
en GSO geosynchronous orbit
en SSO Sun synchronous orbit
en ICO intermediate circular orbit