2009 Or 2011 ?, 1 or 2 ? |
2009 Or 2011 ?, 1 or 2 ? |
May 3 2005, 11:11 AM
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#1
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Member Group: Members Posts: 290 Joined: 26-March 04 From: Edam, The Netherlands Member No.: 65 |
Does anybody know when and how many MSL will go, or when the decision on this will be made ?
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Nov 28 2005, 09:57 AM
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#2
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Senior Member Group: Members Posts: 1870 Joined: 20-February 05 Member No.: 174 |
When you're playing it smart, a lot can be done to redesign, even rebuild a spacecraft for an "equivalent" new mission in a relatively short time and at ridiculously low cost. Look at Venus Express, finally sending a "Mariner class" orbiter to Venus for studies that should have been done 20 to 25 years ago.
Another example from Venus: The engineering spacecraft from the Mariner Mars 1964 mission was redesigned and rebuilt as Mariner Venus 1967. The main changes were reversing the solar panels, nuking the camera system (of dubious use for Venus even with plausible modifications), and replacing it with a receiver for dual channel atmosphere occultation measurements to supplement the S-Band occultation carrier transmitted to Earth. The occultation didn't reach the surface due to atmosphere refraction, but it proved that Venera 4 (arriving a few days earlier) stopped transmitting before reaching the surface, and together with the Venera 4 data, showed the surface would be encountered at around the 90-100 atmosphere level, where it turned out to be. |
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