Cubesats for Solar System Exploration |
Cubesats for Solar System Exploration |
Aug 8 2020, 05:14 PM
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Member Group: Members Posts: 706 Joined: 22-April 05 Member No.: 351 |
[ADMIN NOTE: New topic started using moved posts from Pallas telescopic observation topic. Please read and keep rule 1.9 in mind. Thanks!]
I was hoping that NASA would select the Athena mission to do a flyby of Pallas using a cubesat spacecraft under the SIMPLEx program. It selected the Janus mission to flyby two near Earth asteroid binary systems instead. The Athena team plans to submit again. -------------------- |
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Aug 21 2020, 03:07 PM
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Member Group: Members Posts: 540 Joined: 17-November 05 From: Oklahoma Member No.: 557 |
... the Sun is not close in terms of delta-v; ... It is much less delta-v to reach Jupiter. Yes, that's true in terms of going there directly. In a different sense though, it's the same delta-v as Jupiter, provided you go to Jupiter first. You can use Jupiter's gravity to slingshot a probe arbitrarily close to the sun. So if you are willing to add several years to the journey plus some hefty radiation hardening for Jupiter's environment, you can pull off getting to the sun with a lot less energy. In early designs for the Parker probe, a Jupiter assist was being seriously considered. The result would have been a probe that could reach a point three times closer to the sun than it is in fact going to (pretty much the minimum survivable distance with current technology). All at the expense of spending very little time at the sun. Here is an article at the Parker website that discusses that option:Change in Mission Design |
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Aug 21 2020, 04:37 PM
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#3
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Member Group: Members Posts: 684 Joined: 24-July 15 Member No.: 7619 |
In early designs for the Parker probe, a Jupiter assist was being seriously considered. The result would have been a probe that could reach a point three times closer to the sun than it is in fact going to (pretty much the minimum survivable distance with current technology). All at the expense of spending very little time at the sun. Has anyone worked out a "RETROGRADE Grand Tour?" Launch from Earth, and align for gravity assist/Oberth burns using- 1) Moon 2) Venus 3) Mercury 4) Sun Net result- you STILL get where you want, but FASTER? |
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