Mission: Hayabusa 2 |
Mission: Hayabusa 2 |
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#201
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Junior Member ![]() ![]() Group: Members Posts: 58 Joined: 17-September 06 Member No.: 1150 ![]() |
JAXA wants to continue with Hayabusa 2. However there is/was a huge fight about the budget. Main problem was the budget for the launch vehicle. 2 months ago or so there was a report which said, that JAXA had to find another launch vehicle or the project gets cancelled. Now the Italian space agency played saviour and overed the VEGA. So finally we might see another Hayabusa in 2011.
It was mentioned here: http://www.jspec.jaxa.jp/080110Final_IPEWG-ProgramBook.pdf |
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Guest_mcmcmc_* |
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#202
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Guests ![]() |
Press conference documentation in english:
http://www.hayabusa2.jaxa.jp/topics/press/...ss20180607e.pdf |
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#203
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Member ![]() ![]() ![]() Group: Members Posts: 817 Joined: 17-April 10 From: Kamakura, Japan Member No.: 5323 ![]() |
Q&A continues.
Q. How do you approach Ryugu? My guess is that you first place Hayabusa 2 on the same planar orbit as Ryugu and then slowly adjust the curvature. Is that right? Since there is a mass difference speeding up of Hayabusa 2 in trying to catch up with Ryugu may lead to overshooting. How can you make sure it will not happen? June 03, 2018 - : 64 year old A. We conducted an earth swing-by on 3 December 2015 and that was for Hayabusa 2 to move into the same orbital plane as Ryugu. After that over 2.5 years we fired ion engines on and off so that Hayabusa 2's orbit becomes closer to that of Ryugu. That is to say, we tried to enlarge Hayabusa 2 's orbit little by little. Here, the mass difference is irrelevant to this operation. We, however, need to take into account, pull by the Sun, and pull by other planets, in addition to the solar rays pressure on Hayabusa 2. In the final stage we need to take into account Ryugu's gravitational pull. That is why we will be conducting a free fall to 1km height. Hayabusa 2's speed varies depending on where it is flying, maximum speed is somethinglike 33km/s and slowest is 23km/s. P There will be more Q&As. |
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