ExoMars - Schiaparelli landing |
ExoMars - Schiaparelli landing |
Aug 12 2016, 07:07 PM
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#31
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Solar System Cartographer Group: Members Posts: 10184 Joined: 5-April 05 From: Canada Member No.: 227 |
Starting a new topic here - hopefully that's OK! Clearly there will be a lot of action around this in the next weeks and months with descent images and HiRISE views of the hardware.
I thought I had posted this map earlier but apparently not. This shows the various landing ellipses in this area. The original plan was for an ellipse oriented NW-SE, but it changed with the different launch date and is now nearly E-W. Note that the ellipse shown in the recent ESA release is the envelope of all ellipses over a given launch period, but the actual landing ellipse for the given launch date is smaller. Opportunity's final landing ellipse is shown for comparison. http://exploration.esa.int/mars/57445-exom...6-landing-site/ http://exploration.esa.int/mars/57446-exom...6-landing-site/ Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Oct 21 2016, 05:53 PM
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#32
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Member Group: Members Posts: 916 Joined: 15-June 09 From: Lisbon, Portugal Member No.: 4824 |
There were repeated remarks that the landing would be attempted during the dust season, a first. So how much dusty was the atmosphere at the landing area? Is there any data from Opportunity? And how could it have influenced the EDL?
Fernando |
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Oct 21 2016, 06:28 PM
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#33
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Member Group: Members Posts: 423 Joined: 13-November 14 From: Norway Member No.: 7310 |
There were repeated remarks that the landing would be attempted during the dust season, a first. So how much dusty was the atmosphere at the landing area? Is there any data from Opportunity? And how could it have influenced the EDL? Fernando There is currently a significant amount of dust in the Martian atmosphere, at least. Apparently, weather radars are capable of picking up dust storms on Earth, and rain can reduce the performance of radar altimeters. Whether a radar altimeter with poor software or performance could get thrown off by the current amount of dust in the Martian atmosphere is to me an interesting question (and whether Mars' dryness would be relevant here). EDIT: it's not the altimeter, apparently -------------------- |
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