“No problem whatsoever with this propulsion system.” “The regulation of the propulsion system has been our trouble child throughout development, and it has just worked beautifully,” he said. The propulsion system, which includes the main engine that is a repurposed shuttle-era Orbital Maneuvering System engine as well as several auxiliary thrusters and reaction control system thrusters, also is working well, he said, despite problems in its development. The spacecraft was producing more electrical power than expected but consuming less than expected because of better thermal stability. It’s better than we ever expected,” said Philippe Deloo, ESA program manager for the European Service Module. “We are very proud that our system is functioning perfectly. 30 briefing, NASA managers said the spacecraft continued to perform well with only minor issues. That will set up Orion for a reentry and splashdown off the California coast Dec. Orion is now descending back towards the moon, where it will perform a second maneuver, called the return powered flyby, on Dec. That burn nudged the spacecraft out of the distant retrograde orbit around the moon it had been in since Nov. The main engine in Orion’s service module fired at 4:53 p.m. 1 with the first of two maneuvers that will put the spacecraft on course for a splashdown in the Pacific Ocean in a week and a half. WASHINGTON - NASA’s Orion spacecraft started its trip back to Earth Dec.
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