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A thought on MER longevity
SFJCody
post Apr 27 2006, 10:06 PM
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It's not completely impossible that one or both MERs could be in a semi-functional state by the time MSL lands in 2010.
If this happens, 3rd Jan 2004 might just go down in history as the last date on which humanity didn't have a working asset on the surface of Mars...
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Joffan
post Apr 27 2006, 10:49 PM
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Interesting thought... and worrying comparison with the Moon, where we haven't had any active hardware on the surface for ages and orbiters come and go.

What is the corresponding date for Mars orbiters? Did MGS start the current continuous coverage, or did she overlap with an earlier working bird?
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tedstryk
post Apr 27 2006, 11:01 PM
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QUOTE (Joffan @ Apr 27 2006, 10:49 PM) *
Interesting thought... and worrying comparison with the Moon, where we haven't had any active hardware on the surface for ages and orbiters come and go.

What is the corresponding date for Mars orbiters? Did MGS start the current continuous coverage, or did she overlap with an earlier working bird?


Yes, it seems like a distant nightmare, but after the Viking 1 Orbiter mission ended on August 17, 1980, there was a gap until MGS arrived on September 11, 1997, with the exception of January 30 - March 27 1989, when Phobos 2 was operating in Mars orbit. As for landers, after the November 1982 loss of the Viking 1 lander due to a command error, there was the gap until July 2004. So between the early 80s and mid-to-late 1990s, there was a real drought, and I see no reason it couldn't happen again.


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Bjorn Jonsson
post Apr 27 2006, 11:15 PM
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I'm convined that sooner or later there will again be no functional spacecraft at Mars for some time, i.e. neither an orbiter nor a lander. Possibly within 15 years.
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