periselene

Noun

1. Synonym of pericynthion.
   • A zero or partical burn, not complicated by guidance malfunction, which results in a velocity of more than 7550 ft/sec at periselene places the prime transport vehicle (PTV) on a hyperbolic escape trajectory out of the...
   • The lunar module shifted into an elliptic orbit with a periselene altitude of 14.3 km ± 200 m and an aposelene altitude of 113.2 km. At periselene tests of the radar altimeter, which ensures the landing of the lunar...
   • These are a periselene altitude reduction and an inclination increase. - 2013, Christopher Russell, Vassilis Angelopoulos, The ARTEMIS Mission, →ISBN, page 19:

   Synonyms: pericynthion