High altitude balloon payload, from Sable-3 discussion |
High altitude balloon payload, from Sable-3 discussion |
Sep 26 2007, 11:16 PM
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
http://www.unmannedspaceflight.com/index.p...20&start=20
We began talkin about a UMSF balloon - and who know what might happen if enough people think about something hard enough, thoroughly enough and long enough. How's about this as a starting point. http://vpizza.org/~jmeehan/balloon/ with http://www.chem.hawaii.edu/uham/part101.html as an important regulatory start point (I'm going to look up the UK regs for this as well) http://www.srcf.ucam.org/~cuspaceflight/nova1launch.html is also very impressive - all done in the UK This http://www.makezine.com/blog/archive/2007/...video_podc.html is particularly impressive - I like the multiple-cameras slant. Anyway - thought I'd get a thread going - this is an idea I like too much to let it gather dust in a corner - the one thing that I think would be nice to achieve is self-portraiture of some sort - think Beagle 2's WAM etc....perhaps in a corner of the FOV of one of/the imaging system. What sort of limit's should we set ourselves? 1kg 10x10x20cm? (sort of 2U Cubesat-on-a-diet budget) Doug |
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Oct 2 2007, 11:27 AM
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
For stereo to work - you either have to have a very long baseline within one payload ( which is a near impossibility given the limitations of size and mass ) - or two simultaneous balloons pointing in the same place, at the same time, at the same altitude ( a near impossibility given the limitations of chaos).
Clouds are usually fuzzy, roughly defined, dynamic objects - I can't imagine that getting stereo imagery of them would be particularly valuable anyway. They're not like a rock. If someone can explain to me how it could be done and why it should be done, then why not....but I struggle to see a means or a purpose at the moment. You are right however - the first launch ( and indeed I would have thought the first few launches ) are intentionally simple and as far as possible, with redundant systems. i.e VHF GPS, and GPRS/SMS GPS, GMC and onboard cameras etc etc. And I've got to get a Radio license Doug |
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Oct 2 2007, 05:40 PM
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
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Oct 2 2007, 08:04 PM
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Why not just have two photographers head to mountaintops, link up by cellphone and synchronized watches, and shoot photos of the same cloud formations at the same time? You could even do this without the mountains, but I think someplace like the Cascades of Oregon or Washington state would be ideal locations. Venus Titan and Neptune, on the other hand would be less than ideal. Nobody was suggesting that you need balloons to study terrestrial cloudforms. Indeed a movie or sufficient still shots from any fast aircraft or satellite would achieve excellent results without the need for mountaineers. My idea was to use Earth's conveniently accessible and largely transparent atmosphere and Doug's simple-as-possible balloons to try out a technique that might prove practical and cost-effective in more awkward locations elsewhere in the solar system. |
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