Q & A With Steve Squyres, Coming in September |
Q & A With Steve Squyres, Coming in September |
Jul 27 2005, 11:46 AM
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Founder Group: Chairman Posts: 14448 Joined: 8-February 04 Member No.: 1 |
As previously reported, there's a great lineup of speakers at the BAA out of London meeting on September 3rd - including MER Principle Investigator Steve Squyres.
Steve has kindly offered some of his time so that we can meet up and do a Q'n'A based on questions submitted by you lot. Obviously - there will be loads and loads of questions you want to ask and only so much time in which to ask them - however - I'll do what I can to pick as many of the best as I can squeeze in in the time available. There will be a write up here, obviously, and I will try and record it as an MP3 and post that here as well. Steve's book 'Roving Mars: Spirit, Opportunity and the Exploration of the Red Planet' is published next week - and a signed copy will be winging its way to the person submitting the best question! * If you have questions you want me to pitch to Steve, then drop me an email to doug@rlproject.com with the subject SS Q&A As a heads up - please take note of the other speakers at the BAA meeting - and if you have specific questions you'd like asked of them - I'll do my best to try and get them in after their presentations at the meeting. The last two ( Profs Greeley and Muller ) are on the Sunday and the Friday respectively, but I will be trying to get down to those presentations as well - but no promises. -Prof. Carolyn Porco, Principal investigator, Cassini imaging system -Prof. John Zarnecki, Principal investigator, Huygens surface science -Prof. Mike A'Hearn, Principal Investigator, Deep Impact, -Prof. Ron Greeley, Scientist on several planetary missions, Chairman of NASA & NAS Mars exploration panel -Prof. Jan-Peter Muller, Scientist on Mars Express hi-resolution camera team, University College London. Doug * 'best' to be picked by SS and myself on the day |
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Aug 22 2005, 05:53 AM
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Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
QUOTE (helvick @ Aug 21 2005, 01:24 PM) ... I don't think it's wavelength dependant it's a planning decision that maximises the science data returned. I do not claim to be an expert in the area of optics and imagery, but am pretty sure I learned that image resolution was inversely proportional to wavelength in physics. Angular resolution = wavelenth divided by the diameter of the objective lens. Since blue light has a shorter wavelength than infrared, it should result in images with higher resolution...and that is what we see from the pancam filters. I did some quick research on the web to see if I could find some examples to support my argument. Here is one example of longer wavelength IR images with lower resolution than similar images taken in visible (shorter) wavelengths. http://www.afrlhorizons.com/Briefs/Feb04/DE0303.html They say, "The two images shown in Figure 2 are from the AMOS 3.67 m telescope using infrared light. They have lower resolution than the visible-light images because infrared wavelengths are much longer than the wavelength of visible light. Telescope resolution is directly related to the wavelength of light, the mirror diameter, the mount stability, and atmospheric turbulence effects." I think those images of the Space Shuttle show the affect on an object we are all familiar with. Is that not the same difference we see between the L7s and the longer wavelength filters on the pancams? This could make an interesting thread in the imagery and tech area... Some of the people who are really knowledgeable in this area might miss this discussion here. -------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
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