ASK Magazine Staff | APPEL Knowledge Services | Page 10

WMAP used the Moon to gain velocity for a slingshot to L2. After 3 phasing loops around the Earth, WMAP flew just behind the orbit of the Moon, three weeks after launch. Using the Moon's gravity, WMAP steals an infinitesimal amount of the Moon's energy to maneuver into the L2 Lagrange point, one million miles (1.5 million km) beyond the Earth.

ASK Talks with Elizabeth Citrin

October 1, 2000 // by ASK Magazine Staff

ASK: You came to project management from a systems engineering background, correct?

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