MSL development & assembly, Until it's shipped to the Cape |
MSL development & assembly, Until it's shipped to the Cape |
Jun 22 2011, 09:14 AM
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#406
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Member Group: Members Posts: 153 Joined: 4-May 11 From: Pardubice, CZ Member No.: 5979 |
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Jun 22 2011, 10:43 AM
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#407
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Member Group: Members Posts: 470 Joined: 24-March 04 From: Finland Member No.: 63 |
So the SW development is ahead of schedule? I think with MER they wrote most of the software when the spacecraft were already in space
-------------------- Antti Kuosmanen
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Jun 22 2011, 12:50 PM
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#408
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
The article states that the lowlevel part of the radar testing has been done, this was for high level to the start of low level, with differing I guess swing angles that might occur.
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Jun 22 2011, 01:02 PM
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#409
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Member Group: Members Posts: 153 Joined: 4-May 11 From: Pardubice, CZ Member No.: 5979 |
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Jun 22 2011, 01:39 PM
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#410
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Founder Group: Chairman Posts: 14444 Joined: 8-February 04 Member No.: 1 |
Just to give you one analogy - engineering model MER airbags were still being tested AFTER the launch of Spirit and Opportunity.
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Jun 22 2011, 01:43 PM
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#411
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
Full inline quote removed - Admin.
I am curious, apart from maybe changing the inflation pressure, what the purpose of that ? |
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Jun 22 2011, 02:04 PM
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#412
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Founder Group: Chairman Posts: 14444 Joined: 8-February 04 Member No.: 1 |
Exactly why? Don't know.
A quick google finds this: https://imageserv5.team-logic.com/mediaLibr...Exploration.pdf Mentions Dec 2003 as the final test. "Full system inflation testing was completed successfully in December 2003. Desired pressure profiles were achieved and deployment occurred with no damage to the airbag assembly." |
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Jun 22 2011, 02:19 PM
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#413
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
It makes you wonder when they were glad there was no damage on inflation...........
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Jun 22 2011, 03:15 PM
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#414
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
If I had to venture a guess on the MER airbag tests, I'd say there was still a wide range of EDL attitude options available to them during cruise, likely related to potential late changes in the chosen landing ellipse. Those kinds of changes would affect the physics (velocities, Gs, and other stresses) at the lower end of the descent and landing thereby affecting the forces encountered by the airbags. By getting in those tests after launch, the data acquired would have helped to clarify the widest possible range of EDL variations available to them late in the game should some kind of alteration become necessary
-------------------- If Occam had heard my theory, things would be very different now.
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Jun 22 2011, 03:29 PM
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#415
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Founder Group: Chairman Posts: 14444 Joined: 8-February 04 Member No.: 1 |
A change in stance from 'it's good enough' to 'just how good is it?' - and with Spirit, TIRS/DIMES doing its thing, we probably benefited from that.
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