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Results tagged with station-keeping
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user 897
Operations done to keep a spacecraft in a particular orbit. Generally done by by thruster burns. In LEO this must be done to counteract the momentum loss to atmospheric drag. In other orbits it may be needed to maintain a planned relative position over a long period of time.
7
votes
Accepted
Will the ISS have electric propulsion to maintain altitude? Is there enough power for it?
the VASIMR test planned by Ad Astra has been cancelled:
On December 8, 2008, Ad Astra signed an agreement with NASA to arrange
the placement and testing of a flight version of the VASIMR, the
VF-200, …
- 130k
5
votes
Accepted
What is the Distinction between DSCOVR's "engines" and "thrusters"?
In this case, the terms are being used interchangeably. DISCOVR has one type of engine, i.e. the MOOG Monarc 5N thruster.
DSCOVR is equipped with ten thrusters that can be used for spacecraft att …
- 130k
6
votes
Accepted
How did DSCOVR use its ten thrusters for the long burn maneuvers MCC and LOI?
The report 'Resurrected DSCOVR Propulsion System – Challenges and
Lessons Learned' contains a schematic of the propulsion system:
and indicates thruster locations:
thruster 9 and 10 are on t …
- 130k
2
votes
Xenon vs Hydrazine, "Should I Stay or Should I go?" Dawn mission decisions
To answer the question about staying at Ceres or going somewhere else:
Dawn does not have enough Xenon propellant left to enter orbit around another asteroid. It can leave Ceres, but can only do a fl …
- 130k