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A resource that's regularly updated is the Wikipedia List of active Solar System probes This also includes probes not intended to land, and probes that have already landed, but since the list only has 25 entries a time of writing, filtering is not a huge job (relevant keywords being "arrival" and "lander"). As of November 2020, the only ...


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But if we examine it closely, what do we see? Hopefully answers will address the following: Does the command contain a set point for engine cut-off based on integrating one accelerometer, or three, or something else? Does the command include a direction in an inertial frame, or the spacecraft's frame? How would this technique be compared and contrasted to ...


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It's probably not what you wanted, but let's ignore engineering and simply calculate the maximum bandwidth from Mars to Earth that physics allows. So the minimum amount of energy to convey a bit of information is $kT\ln(2)$. So if we take the surface of Mars at roughly 250K as giving us $T$ (since it will be the background against which we are trying to ...


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Communications with lasers between two points in outer space, better known as Free-space optical communication (FSO) has a potential for bit rates similar to fiber-optic cables - up to 1Tb/s. Going through an atmosphere, for instance, from Earth to an orbiting satellite the current effective range drops to about 3.5 km. You would still need radio transmitter ...


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They haven't publicly laid out detailed plans, but they have or are actively working on all the pieces such a system would require, and have mentioned it a couple times. Shotwell discussed it in an interview for TIME magazine: The second reason was once we take people to Mars, they're gonna need a capability to communicate. In fact, I think it will be even ...


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The problem can't be answered as given as the problem is not adequately specified. Bandwidth is a function of power and the size of the antennas used. On the transmitting side the bigger the dish the narrower the cone and less energy is wasted on directions that don't lead to the receiver. On the receiving side the bigger the dish the more of the signal it ...


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