highaltitude.log.20160715

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[00:23] <SpacenearUS> New position from 03M10RS-11 after 0313 hours silence - 12https://tracker.habhub.org/#!qm=All&q=M10RS-11
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[00:45] <SpacenearUS> New position from 03S11 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=S11
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[01:24] <SpacenearUS> New vehicle on the map: 03che_chase - 12https://tracker.habhub.org/#!qm=All&q=che_chase
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[04:45] <SpacenearUS> New position from 03KD2EAT-15 after 0312 hours silence - 12https://tracker.habhub.org/#!qm=All&q=KD2EAT-15
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[05:33] <SpacenearUS> New vehicle on the map: 03DC2EH-1 - 12https://tracker.habhub.org/#!qm=All&q=DC2EH-1
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[06:42] <SpacenearUS> New position from 03S13 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=S13
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[08:04] <pjm> gonzo__p, i've only played up to 39.4GHz for the alphasat TDP-5 beacon
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[08:33] <swaledale> !flights
[08:33] <SpacenearUS> 03swaledale: Current flights: 03Fermynwood2 10(9542), 03PICO-26 144.251 MHz CTSTIA32/1000 10(0cf1), 03PICO-25 144.251 MHz CTSTIA32/1000 10(0b32)
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[09:27] <SpacenearUS> New vehicle on the map: 03BARC - 12https://tracker.habhub.org/#!qm=All&q=BARC
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[10:04] <pcal> Hi. We have a launch tomorrow from Bere Regis is Dorset I will post frequencies later if anyone is interested. However, we do seem to have a problem and I wondered if anyone knows the slowest ascent speed we could use?
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[10:07] <pcal_> Hi. We have a launch tomorrow from Bere Regis is Dorset I will post frequencies later if anyone is interested. However, we do seem to have a problem and I wondered if anyone knows the slowest ascent speed we could use?
[10:08] <gonzo__> is this a pico flight?
[10:08] <pcal_> pico?
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[10:09] <gonzo__> I've used 1m/s for a balloon that only just makes it into the air
[10:09] <gonzo__> pico: UKHAS speak for a small balloon that is within the CAA limit of 2mtrs (at any point in flight) so not needing a NOTAM
[10:10] <pb0ahx_> !flights
[10:10] <SpacenearUS> 03pb0ahx_: Current flights: 03Fermynwood2 10(9542), 03PICO-26 144.251 MHz CTSTIA32/1000 10(0cf1), 03PICO-25 144.251 MHz CTSTIA32/1000 10(0b32)
[10:10] <pb0ahx_> !dial 9542
[10:10] <SpacenearUS> 03pb0ahx_: Latest dials for 03SCOOBY 10(9542): none
[10:11] <pb0ahx_> !dial Fermynwood2
[10:11] <SpacenearUS> 03pb0ahx_: Can't find a flight doc matching your query
[10:11] <gonzo__> damn, vnc lag. missed him
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[10:12] <pcal> sorry, I'm at work, keep getting kicked off!
[10:12] <gonzo__> np
[10:12] <gonzo__> I've used 1m/s for a balloon that only just makes it into the air
[10:12] <gonzo__> pico: UKHAS speak for a small balloon that is within the CAA limit of 2mtrs (at any point in flight) so not needing a NOTAM
[10:13] <gonzo__> there are a few receiving stations ij the poole area, who can listen for you
[10:14] <pcal> No we have a 1600g balloon and clearance from the CAA and a two hour launch window. It looks like it will end up on the Isle of Wight but only if we use a slow ascent rate
[10:15] <PE1ANS> !flights
[10:15] <SpacenearUS> 03PE1ANS: Current flights: 03Fermynwood2 10(9542), 03PICO-26 144.251 MHz CTSTIA32/1000 10(0cf1), 03PICO-25 144.251 MHz CTSTIA32/1000 10(0b32)
[10:15] <gonzo__> my 1m/s is for a pico balloon. So only just enough lift to get it up, and not much size to give drag to slow it's ascent
[10:15] <gonzo__> are you planning to recover it?
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[10:20] <PE1ANS> anyone info about BARC???
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[10:21] <gonzo__> pcal: are you planning to recover it?
[10:22] <pcal> yes we are
[10:23] <gonzo__> looking at the predictions for noon tomorrow, you may be safer overfilling, to get an early burst and try to keep it over land
[10:23] <gonzo__> how much by i hope someone else will jump in and suggest
[10:23] <pcal> we have to launch between 8 and 10am
[10:23] <gonzo__> they will probably need to know the payload mass too
[10:24] <pb0ahx_> wat is frequentie off BARC ??
[10:24] <pcal> 1.822 including parachute etc
[10:26] <pb0ahx_> !dial BARC
[10:26] <SpacenearUS> 03pb0ahx_: Can't find a flight doc matching your query
[10:26] <gonzo__> can anyone suggest how much free lift these guys will need to get an early burst. Prob around 10000m to keep tem on land?
[10:27] <Geoff-G8DHE-Tab> Use the full predictors?
[10:27] <Geoff-G8DHE-Tab> Fill*
[10:27] <gonzo__> pcal, you shoudl announce the launch on the ukhas google group, if you have not already
[10:30] <gonzo__> Geoff-G8DHE-Tab, I didn't know that existed. Would have saved me some time!
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[10:30] <pb0ahx_> Geoff-G8DHE-Tab, u know the frequentie of BARC ?
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[10:31] <gonzo__> pcal, just from my simple playing, 10km looks to be about your optimum burst height to stay on lond. But it's always a gamble. Don't fly anything you can't afford to lose.
[10:32] <Geoff-G8DHE-Tab> He rarely announced them but 434.650 is so stones used
[10:33] <pb0ahx_> i hope not 650
[10:33] <Geoff-G8DHE-Tab> Sometimes used* (sat on beach enjoying the sun!)
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[10:35] <pcal> I just want to know that it will burst with an ascent rate of 4mps and not float around forever!
[10:36] <pb0ahx_> nobody have info from BARC ???? tnx
[10:39] <edmoore> his BARC is worse than his Flight [announcement]
[10:39] <edmoore> pcal: 4m/s should be ok
[10:39] <edmoore> what size balloon and what mass payload?
[10:41] <pcal> 1600g Balloon, 1822 payload including line , parachutes etc
[10:41] <swaledale> pcal: 1.822Kg burst @ 35153m with a Hy-100 balloon
[10:41] <swaledale> HY-1600*
[10:41] <swaledale> if you go for 4m/s
[10:41] <pcal> yes HY-1600
[10:42] <pcal> okay, that sounds good, as long as it works. We're just loking at every option.
[10:43] <swaledale> thatll burst just off Christchurch and land on the North side of IOW. Only if predictions stay the same though right.
[10:44] <swaledale> 5m/s brings landing further to the West
[10:45] <swaledale> FYI: http://predict.habhub.org/#!/uuid=c06b0f4720fa550aaea8f4c9db4f2f3256261853
[10:45] <edmoore> i'd be pretty confident you'd get a nice clean burst with that
[10:45] <edmoore> but obviously you must we willing to accept a lost payload in any hab activity ;)
[10:45] <swaledale> At least over water to IOW there will be a fair amount of 'will it or wont it' excitement :)
[10:46] <pcal> I'm using sotons predictor as well as Hab Hub http://astra-planner.soton.ac.uk/ and every one shows a launch at 10am would be best with 4mps (most likely to land on IOW)
[10:49] <pcal> Location of launch is Lat 50.7039 Long -2.2192
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[10:51] <gonzo__> the ascent speed is dictated by the free lift and the balloon size
[10:51] <gonzo__> and the fill to get that will affect the burst alt
[10:52] <gonzo__> so you have to tweak all of thoise together to come up with a free lift value
[10:53] <gonzo__> but trying to hit an island is playing roulette
[10:53] <gonzo__> best to overfill and burst low, to keep it over land
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[10:58] <Babs____> Da rake - sorry, just saw the rollback. Yes, DM is away and Ruan is there but seems to be pretty efficient
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[11:03] <Geoff-G8DHE-M> !dial barc
[11:03] <SpacenearUS> 03Geoff-G8DHE-M: Can't find a flight doc matching your query
[11:03] <Geoff-G8DHE-M> seems to be on 434.450
[11:04] <daveake> s/Ruan/Ryan ... yes seems efficient ... he replied to my email quickly yesterday, and was helpful on the phone when I called
[11:05] <daveake> Just need to see when he does my notam today :)
[11:06] <SpacenearUS> New position from 03IV3SRD-11 after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11
[11:07] <swaledale> pcal: your NOTAM window is 0800 to 1030 so a little bit of wiggle room for your flight tomorrow
[11:07] <gonzo__> think he's still gone
[11:08] <swaledale> ah yes, oh well
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[11:41] <edmoore> swaledale you asked about this the other night
[11:41] <edmoore> https://gist.github.com/anonymous/5013762
[11:42] <swaledale> thanks, its very intriguing!
[11:44] <swaledale> I hadnt realised the challenge was that old, what's the history in folks trying to win it? much success
[11:44] <swaledale> ?
[11:51] <edmoore> no one has tried
[11:54] <swaledale> so the focus is parachute control rather than payload propulsion then it seems? i.e. not turning your payload into a drone and then deploying a chute with moments to spare!
[11:57] <adamgreig> bad idea incoming in 3.. http://hackaday.com/2016/07/14/ham-antenna-rises-to-the-occasion
[11:58] <richrboo> Hi, is anyone around to approve flight doc on habhub?
[11:58] <richrboo> My fault I left it late.
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[11:59] <SpacenearUS> New position from 03M10RS-11 after 0312 hours silence - 12https://tracker.habhub.org/#!qm=All&q=M10RS-11
[12:00] <chris___> We should be turning on the Scooby PITS in 30 minutes for a 14:00 hrs launch. Cheers, Chris M6LZY
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[12:05] <samir_> Hi folks
[12:08] <samir_> I'm struggling to find/remember the chatroom where flights are sent for approval.
[12:08] <adamgreig> #habhub
[12:18] <swaledale> BARC down. 52.86248, -0.8235 @315masl
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[13:04] <SpacenearUS> New vehicle on the map: 03SCOOBY - 12https://tracker.habhub.org/#!qm=All&q=SCOOBY
[13:04] <Geoff-G8DHE> !dial scooby
[13:04] <SpacenearUS> 03Geoff-G8DHE: Latest dials for 03SCOOBY 10(9542): 03434.2498 MHz
[13:09] <SpeedEvil> https://en.wikipedia.org/wiki/Curiosity_%28rover%29#/media/File:MARDI-MSL-camera.jpg
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[13:10] <SpeedEvil> Picture of the Junocam as onboard the Juno mission (comparable model)
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[13:10] <SpeedEvil> This is the primary visual camera.
[13:13] <fsphil> even its lens is radiation hardened
[13:14] <fsphil> https://www.missionjuno.swri.edu/pub/e/downloads/JunoCam_Junos_Outreach_Camera.pdf
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[13:18] <swaledale> So.. anyone seen any Pokemon up in near space yet? :) http://www.itv.com/news/westcountry/2016-07-15/teenagers-lost-in-cave-were-looking-for-pokemon/
[13:19] <SpeedEvil> fsphil: neat
[13:20] <SpeedEvil> It's a GPS driven app you fuckwits. There is no GPS in caves
[13:20] Action: SpeedEvil sighs
[13:20] <swaledale> There's a ton of head in hands jokes there
[13:21] <swaledale> teenagers = GPS is maaagic
[13:23] <swaledale> fsphil: they had to wait 21 days to find out if the camera worked after launch! Shoulda used SSDV ;)
[13:24] <fsphil> I wonder what format it uses. was surprised when I learned new horizons used standard jpeg for the first image from the flyby
[13:25] <fsphil> the pdf mentions optional DCT compression or raw
[13:25] <fsphil> "DCT with selectable quantisation" -- sounds like jpeg
[13:25] <swaledale> I found the bit that says... The raw image data are stored in spacecraft DRAM and then read out, processed, and formatted for downlinking. Processing consists of frame editing, optional summing, optional median ltering to remove radiation-induced pixel transients, and optional lossy transform-based or lossless predictive image compression
[13:29] <fsphil> the earth flyby video from juno shows quite dramatic compression artifacts, https://www.youtube.com/watch?v=_CzBlSXgzqI
[13:31] <fsphil> oh that might not be from junocam, description says it was from a star tracker camera
[13:37] <swaledale> its a shame the raw images stay onboard, seems they get (heavily) processed before sending
[13:37] Barc (1f7451c1@gateway/web/freenode/ip.31.116.81.193) joined #highaltitude.
[13:37] <SpeedEvil> It has a raw data rate that would make fsphil embarrased.
[13:37] <SpeedEvil> ~300bps
[13:38] <Barc> Hi all!
[13:38] <SpeedEvil> hi
[13:38] <Barc> Payload safely recovered
[13:38] <SpeedEvil> yay!
[13:38] <Barc> great footage, happy school kids!
[13:38] <swaledale> Hi Barc. Congrats. Did it land on the farmhouse?!
[13:38] <Barc> thanks for listening in
[13:39] <Barc> no just in the field next to it !
[13:39] <swaledale> Excellent!
[13:39] <Barc> the farmer has some nice footage of her farm though
[13:39] <swaledale> Oh lovely
[13:39] <Barc> lots and lots of chickens running about
[13:40] <swaledale> Free eggs for the kids!
[13:41] <Barc> an added bonus
[13:41] <pb0ahx_> BARC team congrats with the recovery was a nice flight
[13:42] Last message repeated 1 time(s).
[13:42] <Barc> thanks!
[13:45] PA0RPA (541aeed1@gateway/web/freenode/ip.84.26.238.209) joined #highaltitude.
[13:49] <PA0RPA> Scooby is fading like hell, not stable hanging under the balloon ! Difficulty's in receiving good packages here in Holland.
[13:51] <PA0RPA> A bear in the sky makes it probably very unstable !
[13:51] <Geoff-G8DHE> Yup very difficult look at this http://360.g8dhe.net/HAB_Flights/2016_Flights/FERMYNWOOD_20160707/index.php?ind=1
[13:52] <SpacenearUS> New vehicle on the map: 03K6STS-12 - 12https://tracker.habhub.org/#!qm=All&q=K6STS-12
[13:54] <pb0ahx_> i writing very well some times a bit of qso
[13:55] <pb0ahx_> qsb
[13:56] <swaledale> a quick ascent too, 8.5m/s
[13:56] <pb0ahx_> turbelentie hihihi
[13:56] <PA0RPA> Beren turbulentie denk ik......
[13:58] <pb0ahx_> yep
[14:01] G4YHE (56171653@gateway/web/freenode/ip.86.23.22.83) joined #highaltitude.
[14:05] <Geoff-G8DHE> Ah its stablised now much better!
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[14:06] Nick change: Wiktor -> Wiktor|Smrudstok
[14:12] Nick change: Wiktor|Smrudstok -> Wiktor|HSWood
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[14:17] <SpacenearUS> New vehicle on the map: 03sp5mg_chase - 12https://tracker.habhub.org/#!qm=All&q=sp5mg_chase
[14:22] <pb0ahx_> Team SCOOBY many tnx was a good flight for me i hope u can revovere the payload
[14:24] <SpacenearUS> New position from 03S-14 after 0320 hours silence - 12https://tracker.habhub.org/#!qm=All&q=S-14
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[14:47] <SpeedEvil> For those that have been asleep
[14:47] <SpeedEvil> https://github.com/dropbox/lepton
[14:48] <SpeedEvil> This is a compressor of jpeg files that gets 15-25% extra compression losslessly
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[15:05] <fsphil> had a quick look yesterday, didn't find a nice quick README describing the method
[15:05] <SpacenearUS> New vehicle on the map: 03N1RCA-11 - 12https://tracker.habhub.org/#!qm=All&q=N1RCA-11
[15:06] <SpeedEvil> fsphil: It works for most images I have, and gets 15-25% (25% on blurred crap with too high quality settings)
[15:06] <SpeedEvil> fsphil: It works for most images I have, and gets 15-55% (25% on blurred crap with too high quality settings)
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[15:22] <SpacenearUS> New position from 03KD0VYQ-1 after 0317 hours silence - 12https://tracker.habhub.org/#!qm=All&q=KD0VYQ-1
[15:24] <swaledale> Scooby landed on the A10 then?
[15:33] <evilroots> yall recall when i was asking about ballons?
[15:33] <evilroots> http://hackaday.com/2016/07/14/ham-antenna-rises-to-the-occasion/
[15:36] <Geoff-G8DHE-M> It was last heard from 210m ABOVE the A10 ;-)
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[15:38] <swaledale> That saves local radio reporting a bear falling from space onto the road!
[15:39] <Geoff-G8DHE-M> :)
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[16:03] <SpacenearUS> New vehicle on the map: 03ANI - 12https://tracker.habhub.org/#!qm=All&q=ANI
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[16:07] <SpacenearUS> New vehicle on the map: 03ANU - 12https://tracker.habhub.org/#!qm=All&q=ANU
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[17:19] <Babs> ping pcal
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[17:43] <___BEN___> What carrier shift and baud should I be using for RTTY on 434MHz?
[17:51] <Geoff-G8DHE-M> Depends on what data rate you want, if sending SSDV then 300Baud which means a shift of normally twice the Baud rate so 600Hz
[17:51] <SpacenearUS> New position from 03test after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=test
[17:51] <Babs> pcal - I have to log off now but will check on the rollback. Will you be on IRC tomorrow? I'm planning on launching after you (we are on the same frequency so need to go sequentially), you were first in the queue but i have to drive about an hour to the launch site
[17:52] <Babs> so if you have an idea of when you will launch and duration let me know and I can plan my day. Thanks and good luck with it!
[17:52] <Geoff-G8DHE-M> if your onlty sending telemetry then 50Baud is adequate and so a shift of 100Hz or so is fine.
[17:52] pcal (5691a6f3@gateway/web/freenode/ip.86.145.166.243) joined #highaltitude.
[17:54] <pcal> Hi, does anyone know if I can launch a 1600g balloon using 3 mps ascent and be sure it will burst?
[17:55] <Geoff-G8DHE-M> You just mised Babs who is looking to co-ordinate frequeinces with you
[17:55] <Geoff-G8DHE-M> have you seen the scrollback ?
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[18:01] <pcal> Hi, does anyone know if I can launch a 1600g balloon using 3 mps ascent and be sure it will burst?
[18:02] <Geoff-G8DHE-M> You just mised Babs who is looking to co-ordinate frequencies with you
[18:02] <Geoff-G8DHE-M> have you seen the scrollback ?
[18:03] <Geoff-G8DHE-M> [18:52] <Babs> pcal - I have to log off now but will check on the rollback. Will you be on IRC tomorrow? I'm planning on launching after you (we are on the same frequency so need to go sequentially), you were first in the queue but i have to drive about an hour to the launch site
[18:03] <Geoff-G8DHE-M> [18:52] <Babs> so if you have an idea of when you will launch and duration let me know and I can plan my day. Thanks and good luck with it!
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[18:14] <RocketBoy> pcal - no - not if its a HY-1600 not down at 3m/sec particurly if its a light payload - it will float.
[18:24] PE2BZ (~pe2bz@032-145-128-083.dynamic.caiway.nl) joined #highaltitude.
[18:26] <pcal> payload is 1757
[18:26] <pcal> what about 3.5?
[18:27] <pcal> trouble is any higher and it will miss IOW
[18:33] <pcal> where do I post my flight? We'll be on 434.653/4
[18:34] <pcal> Babs we'll be on from about 8am
[18:35] <mfa298> pcal: is there stuff in this payload you need to recover.
[18:35] <mfa298> As I'm not sure many people would trust a prediction for landing on the IoW to necessarily come true
[18:36] <RocketBoy> I wouldnt
[18:36] <RocketBoy> I wounlt go below 4.5m/sec for an HY-1600
[18:37] <RocketBoy> see http://habhub.org/calc/
[18:37] <RocketBoy> post flight here http://habitat.habhub.org/genpayload/
[18:38] <mfa298> I added a couple of km in height to an earlier prediction and it moves from the middle of the IoW to right on the needles.
[18:38] <RocketBoy> when you get the document id go over to #habhub and ask them to approve it.
[18:38] <mfa298> (although that was a 5 and up and down flight)
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[18:40] <pcal> well I don't know how you did that. I couldn't get it anywhere near without going to 3.5
[18:42] <mfa298> that was using a preduction someone else pasted earlier so probably wrong values.
[18:42] <mfa298> the point being a difference in burst height by a couple of km can make a difference between wet and dry landings.
[18:43] <mfa298> and Howyee balloosn aren't known for always bursting when you expect them to.
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[18:43] <mfa298> what's the payload weight you're using ?
[18:44] <pcal> 1757
[18:44] <mfa298> I just spotted it above.
[18:44] <pcal> using my payload?
[18:46] <mfa298> so a 3.5 m/s payload on a HY-1600 goes to 37km based on the calc (if it doesn't float), however if it burst 2km early (35km) or late (39km) your pretty much in the water.
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[18:47] <pcal> Yes I know. What are the chances of it floating?
[18:47] <daveake> Very high
[18:47] <daveake> In the Solent probably
[18:48] <daveake> I don't think I have enough brave bills to aim for the IOW with anything I'd want to get back
[18:49] <mfa298> I certainly don't think you'de want to count on it bursting as expected at 3.5m/s ascent.
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[18:50] <daveake> Id want >= 5m/s and I'd want Totex
[18:51] <mfa298> although interestingly sticking a higher ascent rate into the calc (7m/s) and using the new burst altitude (33km) still puts you on the island,
[18:51] <daveake> Got a link?
[18:52] <mfa298> http://predict.habhub.org/#!/uuid=35adc2730e12b738cbcc5446c59c7fb4df69e110
[18:52] <pcal> what should we do dave can't launch from anywhere else, unless you know of anywhere
[18:52] <daveake> That last bit is a sore point right now
[18:52] <RocketBoy> when are you wanting to launch?
[18:53] <daveake> Actually, as IOW predictions go, that's got a better than average chance of success
[18:54] <RocketBoy> we are have a launch tomorrow from elsworth (cambs)
[18:54] <mfa298> most of the ones I've tried put it somewhere across the middle if the island.
[18:54] <pcal> Really, so what rate do you think.
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[18:54] <mfa298> not sure you'd want to fly anything you don't mind floating away on the ocean, but as chances for landign on the IoW goes that's got to be one of the better sets
[18:55] <daveake> Biggest risk with the Hy1600 is it going higher than you thought, so I'd run predictions for say 2km below and 4km above in altitude, and find a fill where both are on the island
[18:55] <daveake> but really if this is £100's of gopro or something, see if Steve can help
[18:56] <pcal> I've only got a small launch window 8 to 10 am
[18:56] <mfa298> I'm wondering if this is one of those times that it might be worth adding a bit more weight, the higher bursts seemed to take the prediction west
[18:56] <daveake> Possibly yeah
[18:56] <daveake> It'd be a fun thing to try, but with a £50 tracker not something expensive
[18:56] <pcal> So I add weight and keep to what ascent rate?
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[18:57] <daveake> whatever keeps you on the island with a low or high burst
[18:57] <pcal> it's got two gopro's, a Raspberry pi cam and an action man!
[18:58] <SM0ULC-Reb> pcal: better iam for the island then :)
[18:58] <pcal> :)
[18:58] <daveake> Might want to swap him for Aquaman
[18:59] <daveake> Up to you how much the loss of the gopros would hurt, but I'd wimp out and fly elsewhere
[18:59] <daveake> or another time
[19:00] <pcal> looks like if i add another 150 g at 4.5 looks okay.. well better
[19:03] <daveake> Here's the thing. Regardless of what the prediction says, things on the day can be different. Main culprit usually is not filling accurately, and the second one is the balloon having its own idea of when it will burst. But also, the prediction itself may be out (inaccurate wind data). So just because a prediction lands slap bang in the centre of IOW
[19:03] <daveake> doesn't mean that's what will actually happen. Oh, and if the balloon decides to rip rather than burst, it'll come down with the payload which will then land more quickly than you thought.
[19:03] <pcal> How accurate do you think it is tonight?
[19:04] <daveake> Not enough to risk £600
[19:04] <pcal> Fair enough. Will be a shame to call it off
[19:04] <daveake> Only you can judge the financial side, but there's a not-small risk of losing it.
[19:05] <daveake> If I had that prediction, I'd fly a small cheap payload just for the fun of landing on a small island
[19:07] <PE2BZ> sorry for disturbing, but what stands IOW for in this topic ?
[19:08] <pjm> isle if wight
[19:08] <daveake> Of
[19:08] <pjm> its that lump hanging off the south coast
[19:08] <pjm> lol "of" yes
[19:08] <PE2BZ> Thanks !
[19:13] <pcal> Well I think i'll pack the car and review in the morning. If I think it's too much of a risk I'll call it off.
[19:13] <daveake> btw what is it with people flying Action Man? Aren't fluffy bears good enough these days? :p
[19:14] <RocketBoy> worse exploding action men
[19:14] <pcal> Saw it on James May toy stories, thats what started me off. I hadn't heard of HAB before that.
[19:14] <RocketBoy> oh no
[19:14] <daveake> hah
[19:14] <RocketBoy> I have a lot to answer for
[19:14] <RocketBoy> or james does
[19:17] <Geoff-G8DHE-Tab> Why not ask Babs if you could fly from his site?
[19:17] <RocketBoy> did you see http://www.telegraph.co.uk/news/2016/07/09/ground-control-to-major-tom-action-man-goes-missing-in-space/
[19:18] <RocketBoy> I wonder what joe public (and CAA) thinks of action men falling from the sky
[19:18] <daveake> yes quite
[19:18] <pcal> Where is BAB's site?
[19:19] <daveake> "disintegrating payloads a speciality"
[19:19] <pcal> Apparently the CAA doesn't mind as they gave me permission!
[19:19] <Geoff-G8DHE-Tab> !flights
[19:19] <SpacenearUS> 03Geoff-G8DHE-Tab: Current flights: 03Fermynwood2 10(9542), 03PICO-26 144.251 MHz CTSTIA32/1000 10(0cf1), 03ANU 10 10(9b62), 03PICO-25 144.251 MHz CTSTIA32/1000 10(0b32)
[19:19] <Geoff-G8DHE-Tab> Oh not till 23:00
[19:19] <daveake> pcal RocketBoy boy means "loose action men falling without parachutes"
[19:20] <Geoff-G8DHE-Tab> Stablitron or something like that it's on the calendar
[19:20] <pcal> Oh.. haha
[19:21] <Geoff-G8DHE-Tab> Fair Mile, Marlborough (lat: 51.32 lon: -1.62
[19:22] <pcal> is that near bath?
[19:23] <Geoff-G8DHE-Tab> Plug it in to Google maps!
[19:25] <pcal> okay, i see
[19:26] <daveake> I don't know what permission he has, but usually these things are for exactly what you ask for. e.g. "one launch please"
[19:27] <Geoff-G8DHE-Tab> :(
[19:27] <pcal> yes i know dave. If we don't launch I'll have to get permission for a later date
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[19:47] Nick change: BitEvil -> SpeedEvil
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[20:13] <Ian_> If you feel you have to launch, either use another balloon if you have one and take out the gopro/s If the mission goes well, you will hopefully have SSDV. If it goes badly you will still have SSDV and won't lose a Gopro.
[20:13] <Ian_> Best that you plan on a loss and make the flight as cheap as you can so that you can do it later or just scrub and fly later.
[20:15] <Ian_> Alternatively give it a good few extra stirks for a fast and low up down and claim the balloon must have been sketchy.
[20:16] <daveake> yeah good point re ssdv
[20:16] <pcal> We don't have another balloon. i does look like we won't be able to launch
[20:16] <SpeedEvil> A few days ago I found out about the hasslebad 100MP medium format cameras
[20:16] <SpeedEvil> $30K
[20:16] <craag> I enjoy getting ssdv from non-recovered payloads :)
[20:16] <daveake> That was a great last shot craag :)
[20:17] <SpeedEvil> :)
[20:17] <craag> It was fantastic
[20:18] <Ian_> pcal probably the best descision, fly another day.
[20:21] <pcal> I know. Shame because of the amount of work we put in
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[20:30] <jakeio> With the LoRa radios, what's is the purpose in the separate MaxPower and OutputPower registers? I assume the mentioned Pout is the E.R.P.?
[20:36] <RocketBoy> erp is power out x antenna gain over a dipole
[20:36] <Babs> pcal - just been reading the rollback - I only have permission for one launch from Fair Mile unfortunately
[20:48] <Babs> Let me know on here when you get a final decision on whether you are going ahead or not?
[20:49] <Babs> thanks
[21:04] <SpacenearUS> New vehicle on the map: 03USDC-1 - 12https://tracker.habhub.org/#!qm=All&q=USDC-1
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[21:23] <SpacenearUS> New vehicle on the map: 03JMHS - 12https://tracker.habhub.org/#!qm=All&q=JMHS
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[21:36] <SpacenearUS> New vehicle on the map: 03USDC-2 - 12https://tracker.habhub.org/#!qm=All&q=USDC-2
[21:39] <SpacenearUS> New vehicle on the map: 03R_S_CHASE_chase - 12https://tracker.habhub.org/#!qm=All&q=R_S_CHASE_chase
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[21:44] <SpacenearUS> New vehicle on the map: 03KC3GMG-11 - 12https://tracker.habhub.org/#!qm=All&q=KC3GMG-11
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[22:09] <jakeio> I'm getting a 403 when trying to send my payload to habitat.
[22:09] <jakeio> Why could this be happening?
[22:17] <richrboo_> Is it possible someone could please add my launch to the habhub calendar?
[22:17] <SpacenearUS> New vehicle on the map: 03REGGIE - 12https://tracker.habhub.org/#!qm=All&q=REGGIE
[22:17] <richrboo_> d26c9fb5339b850a1f1b477580d3dc12
[22:17] <jakeio> Do ignore my payload name, temporary.
[22:17] <richrboo_> USDC
[22:18] <jakeio> REGGIE!
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[22:35] <RocketBoy> richrboo_: its been added by someone
[22:36] <richrboo_> RocketBoy: ok thanks
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[22:48] <___BEN___> Does anyone know of any good premade 434MHz yagis sold in the UK.
[23:05] <SpacenearUS> New position from 03IV3SRD-11 after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11
[23:06] <mfa298> there's quite a range if you look in amateur radio stores
[23:07] <mfa298> although it depends a bit on what the purpose is, a 20 element yagi might not be appropriate for mobile tracking
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[23:13] <___BEN___> http://www.farnell.com/datasheets/1580327.pdf This seams to be of a reasonable length. is 9dBi enough?
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[23:44] <fsphil> ___BEN___: most likely fine. largely depends on your radio module's power and the datarate you're using
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[23:53] <SpacenearUS> New vehicle on the map: 03PS-67 - 12https://tracker.habhub.org/#!qm=All&q=PS-67
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[23:57] <SpacenearUS> New position from 03K6RPT-12 after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=K6RPT-12
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[00:00] --- Sat Jul 16 2016