Dawn Cruise |
Dawn Cruise |
Sep 27 2007, 12:31 PM
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#1
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Member Group: Members Posts: 100 Joined: 11-October 04 From: Oxford, UK (Glasgow by birth) Member No.: 101 |
Pushing out of Earth orbit now...........
-------------------- "There are 10 types of people in the world - those who understand binary code, and those who don't."
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May 3 2010, 03:58 PM
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#2
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Yeah, and Hayabusa orbited Itokawa too, but neither are main belt asteroids, they're both near Earth asteroids. (I asked Marc the same question and he pointed out the distinction that he made, which I'd also missed.) It may seem like a fine distinction but remember if you're sending a spacecraft to a NEA from Earth you, by definition, are starting out with an orbit pretty similar to the asteroid's, so it's not so hard to match velocities. To enter orbit around a main belt asteroid have to do a LOT more work.
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May 3 2010, 04:08 PM
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#3
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Yeah, and Hayabusa orbited Itokawa too I thought it "only" performed station-keeping maneuvers at certain vantage points? Something I wouldn't call orbit. -------------------- |
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