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If Rosetta crashed but remained operational enough to keep an open connection but not enough to receive commands to close it, it would use up incredibly valuabl
by stouset 10y ago
If Rosetta crashed but remained operational enough to keep an open connection but not enough to receive commands to close it, it would use up incredibly valuable resources on a highly resource-constrained network.
- sp332 10y agohttps://en.wikipedia.org/wiki/NASA_Deep_Space_Network#Network_limitations_and_challenges https://en.wikipedia.org/wiki/NASA_Deep_Space_Network#Networ...
- CamperBob2 10y agoI don't really understand that. DSN antennas are highly directional because they have to be. If they don't aim directly at the asteroid -- and we're talking a tiny fraction of a degree of beamwidth -- they won't hear anything, even if they want to. There is no conceivable risk of "jamming" the DSN.
- fbender 10y agoI suppose it's not about "jamming" but rather "accidental overlap" with future trajectories, i.e. another mission may pass through the axis between DSN-station and comet and the signals will mix. Be aware that the beam is conical, so even if the pointing is exact within a few fractions of a degree, the further away you are from the DSN-station, the wider is the coverage area of the beam (and the lesser the signal strength, of course).