bi-elliptic transfer
Word Rarity
Rare
Frequency: Zipf frequency 2.86 in modern English
27
Scrabble Score
18
Letters
6
Syllables
12
Unique Chars
Meaning
noun
A type of movement of a spacecraft from one orbit to another, in which the spacecraft first raises its apoapsis to an extremely high altitude, then, at the new, higher, apoapsis, performs an engine burn to change its periapsis to that of the desired orbit, and, finally, upon reaching the new periapsis, performs a third burn to lower the eccentricity of its orbit and circularize in the desired orbit, or performs these steps in reverse to move from a higher to a lower orbit.