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pericynthion

noun

Etymology

From peri- + Cynthia (“Artemis, the Moon”) + -ion, from Ancient Greek περι- (peri-) + Κυνθία (Kunthía, “Artemis”). Compare perihelion, periastron.

  1. derived from περι-

Definitions

  1. The point in an elliptical orbit around the moon that passes closest to the moon.

    • Trajectory sensitivities are determined for ü=3hr and the first adjustment method is used to calculate that a midcourse correction AV_ = 7.3m/sec is required to correct to the nominal pericynthion point and time.
    • The nominal landing trajectory used in this study consists of applying constant thrust at the pericynthion of the synchronous orbit and performing a gravity-turn descent to a point about 5,500 feet above the lunar surface.
    • Because of the "requirement" that the pericynthion of this type of trajectory lie on the earth-moon axis, the pericynthion loci of realistic panes pass through or very close to the earth-moon axis regardless of i_(VTL).

The neighborhood

Vish — recursive loop

No curated loop yet for pericynthion. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA