LRO development |
LRO development |
May 2 2005, 01:31 AM
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Senior Member Group: Moderator Posts: 2262 Joined: 9-February 04 From: Melbourne - Oz Member No.: 16 |
Just read this interesting article about LRO
http://science.nasa.gov/headlines/y2005/28apr_lro.htm QUOTE "This is the first in a string of missions," says Gordon Chin, project scientist for LRO at NASA's Goddard Space Flight Center. "More robots will follow, about one per year, leading up to manned flight" no later than 2020." One per Year? Is this just wishful thinking or have any tentitve plans been mentioned for follow up missions after LRO? If the next one is going to be 2009/10 then I guess some desisions about it will have to be made fairly soon. James -------------------- |
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Guest_Analyst_* |
May 12 2006, 07:56 AM
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#2
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Guests |
Thanks, sounds valid. On the other hand, Messenger does have a lot more delta V than 1,000 m/s, so a monoprop system using Messenger's tanks should give at least 1,000 m/s. They had trouble developing these tanks, but it has been done.
This brings me to another question: Why do never spacecraft (MRO, LRO) use monoprop systems? Biprop systems are working (see my post above) and are well understood and much more efficient. Is the reduced risk and complexity really worth the cost of a bigger launcher (Delta II vs. EELV) and/or less payload? Analyst |
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