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Bookmark or Share- How much does it cost to fill an ion thuster with Xenon for a ...The Starlink constellation v1 satellites used Krypton for its ion thrusters. Starlink v2 satellites use Argon. Alibaba shows Krypton at around ~$100 / cubic meter, which is less than a tenth of the of the price volume wise. And Argon costs far less than Krypton.
- spacex - How much krypton do Starlink satellites carry when they are ...Starlink satellites use krypton as propellant. This answer roughly estimates 2.3 kg of Krypton based on a total delta-V of 190 m/s and an exhaust velocity of 20,000 m/s. But how close is that to reality? Is it known how much propellant is loaded into a Starlink satellite at launch?
- How much krypton is stored on a Starlink satellite?How much krypton (fuel) is there for the krypton-powered ion thrusters on Starlink satellites and how long does it last?
- physics - Why might krypton have a lower utilization fraction than ...The lower mass of krypton with respect to xenon also decreases the sputtering yield approximately by the square root of the mass ratio. If Hall thruster efficiency on krypton can be improved to approach that of xenon, a krypton thruster could benefit several interplanetary missions due to its higher specific impulse and longer lifetime.
- Delta-V of Starlink Satellites - Space Exploration Stack ExchangeChoosing an arbitrary Isp of 2000 seconds (exhaust velocity of 20,000 m/s) it means that at least 2% of the satellite's mass would have to be krypton to do this, or at least 4.6 kg. At 3.8 g/liter at standard atmosphere, a bottle at 100 atmospheres for example would have to be say 12 liters, and also fairly heavy to safely hold the pressure.
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