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NASA and Boeing have been monitoring two issues with the Starliner spacecraft: one with a set of thrusters and the other involving helium leaks in the propulsion system.
Sketch of a circumlunar free return trajectory (not to scale), plotted on the rotating reference frame rotating with the moon. (Moon's motion only shown for clarity) In orbital mechanics, a free-return trajectory is a trajectory of a spacecraft traveling away from a primary body (for example, the Earth) where gravity due to a secondary body (for example, the Moon) causes the spacecraft to ...
On 25 September 2008, NASA announced significant progress in diagnosing the source of the starboard SARJ problem and a programme to repair it on orbit. The repair programme began with the flight of the Space Shuttle Endeavour on STS-126. The crew carried out servicing of both the starboard and port SARJs, lubricating both joints and replacing ...
This delay resulted in an abnormal orbit and excessive fuel use. The decision was made to scratch the ISS rendezvous/docking since the spacecraft burned too much fuel to reach orbit even after Mission control center fixed the MET clock issue. NASA and Boeing officials placed the spacecraft in a different orbit and the entire flight plan had to ...
In spaceflight, an orbital maneuver (otherwise known as a burn) is the use of propulsion systems to change the orbit of a spacecraft.For spacecraft far from Earth (for example those in orbits around the Sun) [clarification needed] an orbital maneuver is called a deep-space maneuver (DSM).
In an entirely separate mission, the Nauka module had docked at the space station earlier that morning, but its thrusters misfired, causing serious problems that made the ISS unable to receive the OFT-2 visit until they were corrected. The Atlas V was immediately rolled back to the VIF, and the launch time was delayed to 3 August 2021 at 17:20: ...
Orbital position vector, orbital velocity vector, other orbital elements. In astrodynamics and celestial dynamics, the orbital state vectors (sometimes state vectors) of an orbit are Cartesian vectors of position and velocity that together with their time () uniquely determine the trajectory of the orbiting body in space.
While the number of satellites launched into orbit is relatively low in comparison to the amount of space available in orbit around the Earth, risky near-misses and occasional collisions happen. The 2009 satellite collision entirely obliterated both spacecraft and resulted in the creation of an estimated 1,000 new pieces of space debris larger ...