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High altitude balloon payload, from Sable-3 discussion
djellison
post Sep 26 2007, 11:16 PM
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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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djellison
post Oct 2 2007, 11:27 AM
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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 smile.gif

Doug
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JRehling
post Oct 2 2007, 05:40 PM
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ngunn
post Oct 2 2007, 08:04 PM
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QUOTE (JRehling @ Oct 2 2007, 06:40 PM) *
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. smile.gif 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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Posts in this topic
- djellison   High altitude balloon payload   Sep 26 2007, 11:16 PM
- - helvick   I'm definitely on board for this but I'm i...   Sep 27 2007, 06:32 AM
|- - dvandorn   QUOTE (helvick @ Sep 27 2007, 01:32 AM) I...   Sep 27 2007, 03:26 PM
- - Paolo Amoroso   QUOTE (djellison @ Sep 27 2007, 01:16 AM)...   Sep 27 2007, 09:39 AM
- - djellison   That's what WAM means - Wide Angle Mirror - yo...   Sep 27 2007, 10:06 AM
|- - Paolo Amoroso   QUOTE (djellison @ Sep 27 2007, 12:06 PM)...   Sep 27 2007, 01:34 PM
- - djellison   A starter for 10: Powershot A570IS (IS would be a...   Sep 27 2007, 02:15 PM
- - helvick   Things to bear in mind. Not all digital cameras...   Sep 27 2007, 04:20 PM
|- - ElkGroveDan   QUOTE (helvick @ Sep 27 2007, 08:20 AM) A...   Sep 28 2007, 04:46 AM
|- - jamescanvin   QUOTE (helvick @ Sep 27 2007, 05:20 PM) I...   Sep 28 2007, 02:04 PM
- - nprev   Well, here's something for that; not cheap, th...   Sep 28 2007, 12:10 AM
|- - helvick   QUOTE (nprev @ Sep 28 2007, 01:10 AM) Wel...   Sep 28 2007, 08:14 AM
- - Juramike   This is an absolutely excellent idea. I'll vo...   Sep 28 2007, 04:33 AM
- - djellison   I saw 'kit' and thought 'great- I...   Sep 28 2007, 07:40 AM
- - djellison   The smartphone is a genius idea - it would make an...   Sep 28 2007, 11:38 AM
- - AndyG   Here's a more-or-less self-explanatory table o...   Sep 28 2007, 12:06 PM
- - jamescanvin   Great info AndyG. Looking at some of the other fo...   Sep 28 2007, 12:41 PM
- - djellison   At that level it's a little bit about luck - b...   Sep 28 2007, 12:57 PM
|- - ustrax   Hey Doug...what do you think of this first approac...   Sep 28 2007, 01:43 PM
- - nprev   Nice logo, ustrax! Just a general engineeri...   Sep 28 2007, 02:05 PM
- - djellison   Payload wouldn't be thermally 'controlled...   Sep 28 2007, 02:23 PM
|- - nprev   QUOTE (djellison @ Sep 28 2007, 07:23 AM)...   Sep 28 2007, 03:57 PM
|- - JRehling   [...]   Sep 28 2007, 05:36 PM
- - jamescanvin   One more stitching test using the SABLE-3 images. ...   Sep 28 2007, 02:38 PM
|- - ustrax   You know how this guys are Doug... Seing those ...   Sep 28 2007, 02:43 PM
- - djellison   Storage, Volume, Mass, Power, Money If you can ...   Sep 28 2007, 03:13 PM
- - scalbers   Hi - this link has a nice high altitude photo from...   Sep 28 2007, 04:51 PM
- - Juramike   One possibility might be to put all the batteries ...   Sep 28 2007, 04:51 PM
- - djellison   Actually - the altitude will be limited by the env...   Sep 28 2007, 05:55 PM
- - nprev   Good point, Doug. However, ascent velocity is stil...   Sep 28 2007, 06:08 PM
|- - Astrophil   Here's an idea for a future mission: re-enact ...   Sep 29 2007, 11:02 AM
- - dvandorn   Have y'all thought about where you'd want ...   Sep 29 2007, 05:22 AM
- - djellison   Actually - the FAA ( and I'm looking up the UK...   Sep 29 2007, 11:10 AM
- - djellison   Just a bit of fun using Google Sketchup. Never use...   Sep 29 2007, 09:52 PM
|- - ElkGroveDan   QUOTE (djellison @ Sep 29 2007, 01:52 PM)...   Sep 29 2007, 10:04 PM
- - djellison   I think it just lets you interface with other form...   Sep 29 2007, 10:10 PM
- - ngunn   I really hope you guys pull this off. Unfortunatel...   Sep 30 2007, 07:54 AM
- - remcook   Cool project! How much would a weather balloon...   Sep 30 2007, 09:30 AM
|- - ugordan   QUOTE (remcook @ Sep 30 2007, 11:30 AM) I...   Sep 30 2007, 09:58 AM
- - remcook   By the way, did this link get mentioned? http://w...   Sep 30 2007, 09:43 AM
- - Juramike   The twin balloon idea is pretty good. Launching t...   Sep 30 2007, 02:50 PM
|- - ugordan   QUOTE (Juramike @ Sep 30 2007, 04:50 PM) ...   Sep 30 2007, 03:11 PM
- - djellison   Plus -two of everything to buy (and in this case, ...   Sep 30 2007, 03:18 PM
|- - nprev   QUOTE (djellison @ Sep 30 2007, 08:18 AM)...   Sep 30 2007, 06:33 PM
|- - dvandorn   QUOTE (djellison @ Sep 30 2007, 10:18 AM)...   Oct 1 2007, 04:39 AM
- - dvandorn   Well... considering the fact that Voyagers 1 and 2...   Oct 1 2007, 04:37 AM
|- - ugordan   QUOTE (dvandorn @ Oct 1 2007, 06:37 AM) W...   Oct 1 2007, 08:27 AM
|- - tedstryk   QUOTE (dvandorn @ Oct 1 2007, 04:37 AM) W...   Oct 4 2007, 09:23 PM
- - AndyG   Is there an issue with expanded polystyrene at ver...   Oct 1 2007, 11:12 AM
|- - djellison   QUOTE (AndyG @ Oct 1 2007, 12:12 PM) Is t...   Oct 1 2007, 12:20 PM
- - djellison   Status update : Proposal : <2kg payload - on t...   Oct 1 2007, 09:43 PM
- - volcanopele   I would seriously look at the design of Huygens as...   Oct 1 2007, 10:01 PM
- - djellison   I was having similar thoughts, how controlled can ...   Oct 1 2007, 10:48 PM
- - nprev   Weight distribution would also be very important f...   Oct 1 2007, 11:59 PM
- - djellison   The problem isn't a million miles from MER ter...   Oct 2 2007, 06:25 AM
- - jamescanvin   I don't think controlling the rotation is goin...   Oct 2 2007, 09:45 AM
- - djellison   Discovered the FM transmitter may be a no-no in th...   Oct 2 2007, 11:11 AM
- - ngunn   Doug - I wanted to reply to your paragraph about o...   Oct 2 2007, 11:15 AM
- - djellison   For stereo to work - you either have to have a ver...   Oct 2 2007, 11:27 AM
|- - JRehling   [...]   Oct 2 2007, 05:40 PM
|- - ngunn   QUOTE (JRehling @ Oct 2 2007, 06:40 PM) W...   Oct 2 2007, 08:04 PM
- - ngunn   OK this is getting off topic and I won't keep ...   Oct 2 2007, 11:56 AM
- - AndyG   Thirty Thousand Metres Via A Plastic Bag The abo...   Oct 2 2007, 12:47 PM
- - djellison   The envelope itself is arguably the easy part. Bu...   Oct 2 2007, 12:55 PM
- - jamescanvin   OK a few simulations of camera coverage. Two came...   Oct 2 2007, 02:19 PM
- - djellison   Now that's cunning - and even though the data ...   Oct 2 2007, 02:44 PM
- - jamescanvin   Your wish is my command... In each of these I...   Oct 2 2007, 05:22 PM
- - jamescanvin   4) Three cameras all in landscape with elevations ...   Oct 2 2007, 05:43 PM
- - djellison   Well - I've just ordered three very VERY cheap...   Oct 2 2007, 08:31 PM
- - helvick   Stunning work with those coverage sims James. Th...   Oct 2 2007, 09:46 PM
- - djellison   Well - I think with these cheap cameras I've g...   Oct 2 2007, 10:22 PM
|- - JRehling   [...]   Oct 3 2007, 06:02 AM
|- - AndyG   QUOTE (djellison @ Oct 2 2007, 11:22 PM) ...   Oct 3 2007, 08:57 AM
- - ElkGroveDan   If Helvick can't come up with another unit, I ...   Oct 2 2007, 11:12 PM
- - djellison   Someone else can drown their cameras intentionally...   Oct 3 2007, 07:00 AM
- - djellison   A 90p thermistor's great...BUT....you need som...   Oct 3 2007, 09:15 AM
|- - JRehling   [...]   Oct 3 2007, 05:59 PM
|- - centsworth_II   QUOTE (JRehling @ Oct 3 2007, 01:59 PM) I...   Oct 4 2007, 10:31 PM
- - AndyG   Monitoring various sensors sounds exactly like a m...   Oct 3 2007, 10:02 AM
- - volcanopele   Someone suggested donating a Treo. There might be...   Oct 4 2007, 10:37 PM
- - helvick   Re Treo's and other potential offerings. They ...   Oct 5 2007, 12:13 AM
|- - ElkGroveDan   QUOTE (helvick @ Oct 4 2007, 04:13 PM) Re...   Oct 5 2007, 04:12 AM
|- - Greg Hullender   QUOTE (helvick @ Oct 4 2007, 05:13 PM) . ...   Oct 5 2007, 11:51 PM
- - volcanopele   It is sad because I refuse to use a Windows Mobile...   Oct 5 2007, 12:30 AM
- - djellison   Will it work in the UK do you think? Quad/Tri band...   Oct 5 2007, 08:27 AM
|- - ElkGroveDan   QUOTE (djellison @ Oct 5 2007, 12:27 AM) ...   Oct 5 2007, 03:03 PM
- - djellison   Got my three very very cheap cameras and the polys...   Oct 5 2007, 04:38 PM
- - djellison   Well - my idea of a front-door peep hole lens to g...   Oct 5 2007, 09:06 PM
- - lyford   I have nothing to offer this project except encour...   Oct 6 2007, 03:24 AM
- - djellison   These crap 3 megapixel cameras will happily record...   Oct 6 2007, 11:00 AM
|- - JRehling   [...]   Oct 6 2007, 07:10 PM
|- - djellison   QUOTE (JRehling @ Oct 6 2007, 08:10 PM) I...   Oct 6 2007, 09:33 PM
- - paxdan   I have been following this thread pretty closely. ...   Oct 6 2007, 11:07 AM
- - djellison   Their wiki doesn't have many details on the ti...   Oct 6 2007, 02:29 PM
- - DEChengst   This sounds pretty exciting In my mind this can ...   Oct 8 2007, 05:19 PM
|- - djellison   QUOTE (DEChengst @ Oct 8 2007, 06:19 PM) ...   Oct 8 2007, 08:22 PM
- - nprev   Really! What kind of sensor is used to detect ...   Oct 9 2007, 03:27 AM
|- - ElkGroveDan   QUOTE (nprev @ Oct 8 2007, 07:27 PM) Real...   Oct 9 2007, 04:29 AM
|- - JRehling   [...]   Oct 9 2007, 05:34 AM
- - djellison   The 144.8 Mhz FM APRS kit arrived. I need to get ...   Oct 12 2007, 12:17 AM
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