highaltitude.log.20181107

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[09:20] <HABISRAEL> Hi. just a simple question. if my balloon will be trasmiting on aprs,does the habhub tracker updates automatically from the aprs network?
[09:25] <HABISRAEL> because I saw balloons that showing on the habhub tracker that transmit aprs. so the habhub just takes every balloon with- 11
[09:25] <HABISRAEL> From aprs servers and puts then on habhub?
[09:26] <craag> I think it'll put on every aprs object that has a balloon icon *and* is over a certain altitude
[09:26] <craag> you can ask in #habhub for a callsign to be explicitly added
[09:27] <HABISRAEL> Ok. Thanks!
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[10:41] <SpacenearUS> New position from 03MAGNU after 0320 days silence - 12https://tracker.habhub.org/#!qm=All&q=MAGNU
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[11:06] <SpacenearUS> New position from 03IV3SRD-11 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11
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[13:54] <Haxxa> a curious thought entered my mind - are high alt balloons ever used for smuggling accross borders?
[13:57] <craag> yes
[13:57] <craag> publicised on the korean border iirc
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[14:04] <daveake> If I ever get round to flying my guided chute, I might need to monitor who downloads the code ...:D
[14:05] <chris_99> haha
[14:05] <daveake> tbh ardupilot + model plane would be easier
[14:05] <chris_99> is that single propeller or..?
[14:05] <daveake> no just controllable flaps in the chute
[14:07] <chris_99> cool
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[15:08] <SpeedEvil> Is 'dropping bombs on' smuggling?
[15:08] <SpeedEvil> (japanese WWII fire-balloons)
[15:11] <daveake> Dunno ... what's the import duty for "Bomb (fire) - detonated" ?
[15:14] <SpeedEvil> Phone up and ask customs?
[15:18] <gonzo_-> test
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[15:55] <chris_99> has anyone used controllable flaps on a shoot before? curious what kind of distance from a target you can get, i imagine wind could be an issue?
[15:55] <chris_99> *chute even
[16:10] <edmoore> i don't think anyone has done it as a hobby hab chris_99 but it's certainly possible in principle
[16:10] <edmoore> getting a glide ratio of about 1:1 is possible with slotted conventional chutes
[16:12] <chris_99> do the military do it do you think
[16:13] <chris_99> when they drop things out of a plane
[16:13] <chris_99> i mean
[16:13] <edmoore> yes
[16:14] <edmoore> there exist full parafoils now, autopiloted to drop supplies accurately
[16:14] <chris_99> ooh
[16:14] <chris_99> do you know any videos or manufacturers?
[16:14] <chris_99> be curious to see some more info on those
[16:14] <daveake> It's pretty much all military projects when I've looked for info
[16:15] <chris_99> interesting
[16:15] <russss> spacex were using a pre-made system from a Canadian company for their fairings, though I think they gave up on that and are now building their own
[16:15] <SpacenearUS> New vehicle on the map: 03SSTAR0267 - 12https://tracker.habhub.org/#!qm=All&q=SSTAR0267
[16:15] <russss> https://www.mmist.ca/
[16:16] <chris_99> neat thanks
[16:16] <edmoore> altair aero were doing it a few years ago
[16:17] <daveake> "with the unique ability to reprogram the target point in-flight with the push of a button," ... well I have that bit :)
[16:17] <edmoore> https://www.youtube.com/watch?v=yQlj5-aWdSk
[16:18] <daveake> Watched that one a few days ago, as it happens
[16:18] <edmoore> if you do it successfully there's a nice bottle of champagne in it
[16:18] <daveake> I know :)
[16:18] <edmoore> that's for chris_99
[16:18] <daveake> Weather permitting I'll do a test flight soon
[16:18] <edmoore> i mean and you, but i know you know
[16:18] <daveake> :)
[16:19] <chris_99> heh, it sounds a really fun problem!
[16:21] <edmoore> i don't know where the rules went
[16:21] <chris_99> oh sorry, there's an actual competition for this you mean
[16:21] <edmoore> yes
[16:22] <edmoore> for anyone who wants to have a go, i said i'd give a nice bottle of champagne if they could do it
[16:22] <chris_99> nice :), be curious what dist you have to get within
[16:22] <chris_99> from a target
[16:22] <gonzo_> being able to TARGET a point.... That sounds like it could be open to all sorts of mis-interpretation in the hands of the press
[16:22] <edmoore> can't remember the exact rules, something like stating before launch a landing spot, and it has to land within like 250m of that spot, and with a landing speed less than 5m/s (so you can't just drop a dart when you go over the spot), and and and
[16:23] <daveake> https://gist.github.com/anonymous/5013762
[16:23] <daveake> Took a while to find, btw, I don't always have it to hand :)
[16:23] <chris_99> cheers
[16:25] <gonzo_> that does mean you have to predict the path to within 250mtrs as well as the trajectory of the lander
[16:25] <daveake> Note #7 complicates things for a parafoil ... it's air speed is likely to be above that so it would need to land into the wind
[16:26] <chris_99> is #7 for safety?
[16:26] <daveake> I imagine so, and is a good addition IMO
[16:26] <edmoore> i'm willing to negotiate a little, but ideally it ought to be <25mph to be a viable people-friendly landing system
[16:26] <edmoore> yes
[16:26] <chris_99> mm
[16:26] <gonzo_> ah, talking of a guided drop, rather than a release?
[16:27] <edmoore> we don't really want things smacking into greenhouses at 100mph
[16:27] <edmoore> so yes i would say landing into the wind makes sense
[16:27] <edmoore> a nice flare manouvre or something
[16:27] <daveake> Well you could theoretically use a regular flight probably with a carefully selected release point, but it'd be tricky
[16:28] <edmoore> if you can using the predictor to hit within 200m from above 20km, having stated the drop point 12hours before launch, the fizz is all yours!!!
[16:31] <SpeedEvil> A 'mars' prize - 'capable of hovering flight for 30s at 30km (a density altitude equivalent to martian surface) would be fun.
[16:31] <SpeedEvil> This would make it quite sporty if actually on Mars, due to the lower G.
[16:34] <SpeedEvil> https://www.youtube.com/watch?v=tEY4ThEwd9c -
[16:34] <SpeedEvil> J. Bob Balaram - Mars Helicopter - 21st Annual International Mars Society Convention
[16:34] <SpeedEvil> (going on Mars 2020)
[16:36] <PE2BZ> Good afternoon. Running the (up to date) lora Gateway with the Pi Zero Lora / RTTY trasnmitter throws error messages after receiving some packets like:
[16:36] <PE2BZ> error: The requested URL returned error: 400 Bad Request
[16:36] <PE2BZ> 16:34:57 Ch0: SSDV Packet, Callsign BZ0LOR, Image 1, Packet 65
[16:36] <PE2BZ> Failed for URL 'http://ssdv.habhub.org/api/v0/packets'
[16:36] <PE2BZ> curl_easy_perform() failed: HTTP response code said error
[16:36] <PE2BZ> error: The requested URL returned error: 400 Bad Request
[16:36] <PE2BZ> 16:34:57 Ch0: SSDV Packet, Callsign BZ0LOR, Image 1, Packet 65
[16:36] <PE2BZ> Failed for URL 'http://ssdv.habhub.org/api/v0/packets'
[16:36] <PE2BZ> curl_easy_perform() failed: HTTP response code said error
[16:40] <PE2BZ> Sometimes the callsign is wrong and sometimes the packet number is > 16000 when transmitting max 200 packets
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[18:09] <SpacenearUS> New position from 03MAGNU after 037 hours silence - 12https://tracker.habhub.org/#!qm=All&q=MAGNU
[18:15] <SpacenearUS> New vehicle on the map: 03BZ0LOR - 12https://tracker.habhub.org/#!qm=All&q=BZ0LOR
[18:22] <SpacenearUS> New vehicle on the map: 03KK6UUQ-1 - 12https://tracker.habhub.org/#!qm=All&q=KK6UUQ-1
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[18:40] <SpacenearUS> New vehicle on the map: 03LEF5147 2008_chase - 12https://tracker.habhub.org/#!qm=All&q=LEF5147%202008_chase
[18:50] <PE2BZ> Please ignore my nonsense message above over the error messages. You should remember that you have PITS running as TX on the same PI you are running the gateway gives problems....
[18:52] <daveake> :)
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[22:52] <SpacenearUS> New vehicle on the map: 03ARY2 - 12https://tracker.habhub.org/#!qm=All&q=ARY2
[23:07] <SpacenearUS> New position from 03IV3SRD-11 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11
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[23:39] <SpacenearUS> New vehicle on the map: 03Sp6vxj_chase - 12https://tracker.habhub.org/#!qm=All&q=Sp6vxj_chase
[00:00] --- Thu Nov 8 2018