highaltitude.log.20150504

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[04:42] <SpacenearUS> New position from 03K6RPT-11 after 0311 hours silence - 12http://tracker.habhub.org/#!qm=All&q=K6RPT-11
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[07:32] <SA6BSS-Mike> Hmm, thats interesting, been monitoring sondemonitor/weather balloons last month or so and noticed som interesting facts, first its getting colder up to about 11000 meter (sub -60) and then it gets warmer and @ 12500-16000m its about -50 and more importent is that at 12500m and up the air humidity get to 0%
[07:32] <SA6BSS-Mike> This is of course known knowledge, but its get very definetive when you se it first hand, and that explains why for example B63 and k6rpt crusing along so good at 13000m
[07:33] <SA6BSS-Mike> the worst thing is to send a balloon to 10000-11000m its doomed to come down or fail otherwise
[07:33] <Reb-SM3ULC> morning
[07:34] <SA6BSS-Mike> GM
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[07:43] <lz1dev> SA6BSS-Mike: you mean b-64?
[07:43] <lz1dev> it cruised at 12500-13000
[07:50] <SA6BSS-Mike> yes, thats right
[07:50] <SA6BSS-Mike> B-63 as well
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[07:54] <SA6BSS-Mike> And ofcourse B-66 :)
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[08:41] <LunarWork> hello
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[08:51] <fsphil> howdy
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[09:56] <SpacenearUS> New vehicle on the map: 03MGSP_ONE - 12http://tracker.habhub.org/#!qm=All&q=MGSP_ONE
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[09:59] <SpacenearUS> New vehicle on the map: 03GarysCar_chase - 12http://tracker.habhub.org/#!qm=All&q=GarysCar_chase
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[11:12] <j0nnymac> hey there - just had a horrid planning moment
[11:12] <j0nnymac> to apply to the caa in the uk
[11:13] <j0nnymac> for permission to launch - do you use the dap1919 form?
[11:13] <j0nnymac> bit worried as it says 'captive balloons'
[11:13] <daveake> no, wrong form
[11:14] <j0nnymac> arpse
[11:14] <j0nnymac> which form do i need?
[11:14] <daveake> See https://ukhas.org.uk/guides:faq
[11:14] <j0nnymac> ta!
[11:14] <daveake> yeah "captive" is a clue
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[11:14] <daveake> though, in one case at least, not enough of a clue :(
[11:15] <j0nnymac> yep
[11:15] <daveake> Also, not this line: "You must be in receipt of a Permit before you can launch."
[11:15] <j0nnymac> i got it off the SentintoSpace website
[11:16] <daveake> Oh dear
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[11:16] <j0nnymac> which do the whole 'bundled package deal'
[11:16] <daveake> linky to where they have the wrong form?
[11:16] <j0nnymac> let me grab it
[11:16] <daveake> plz
[11:16] <daveake> I'll let them know
[11:16] <j0nnymac> http://sentintospace.com/helpful-stuff/
[11:17] <daveake> Jeez
[11:17] <j0nnymac> hmmm
[11:17] <russss> lol yes, they link to the wrong page here http://sentintospace.com/tutorials/permissions-uk/
[11:17] <russss> top. work.
[11:17] <daveake> You'd think they'd know
[11:17] <j0nnymac> yeah
[11:17] <j0nnymac> wouldnt mind but i applied weeks ago
[11:17] <j0nnymac> running out of runway
[11:17] <daveake> Whereabouts are you?
[11:17] <j0nnymac> hampshire
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[11:18] <daveake> and when are you hoping to launch?
[11:18] <j0nnymac> nr winchester
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[11:18] <j0nnymac> june 8th-12th
[11:18] <daveake> Oh you'll be fine
[11:18] <j0nnymac> phew!
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[11:21] <j0nnymac> Will they accept the form via email?
[11:22] <craag> j0nnymac: I can forward you an example application if you want
[11:23] <craag> And yes, email is fine.
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[11:24] <j0nnymac> yes please :)
[11:24] <j0nnymac> jon_mcnam@uk.ibm.com
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[11:25] <craag> Done.
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[11:25] <j0nnymac> youre a legend sir
[11:26] <craag> Don't leave it as late as I did on that one ;)
[11:26] <j0nnymac> just reading :)
[11:26] <j0nnymac> how late was it?
[11:27] <craag> 6 days before... had some free helium appear with a limited time window so thought I'd give it a shot
[11:27] <j0nnymac> ooooh! living on the edge
[11:27] <j0nnymac> did ya get it?
[11:28] <craag> The site had been previously approved AND I was asking for very early AM
[11:28] <j0nnymac> gotcha
[11:28] <craag> yes I did - although my application to the Wind Authority didn't get the same treatment :(
[11:28] <j0nnymac> there's a wind authority??
[11:29] <Vaizki> oh yes
[11:29] <craag> hehe
[11:29] <j0nnymac> oh noooo
[11:29] <daveake> Yeah if the site has been approved before then they only seem to need 2-3 days notice. That said, best to give them as much as you can.
[11:29] <craag> they command the weather ;)
[11:29] <daveake> :)
[11:29] <j0nnymac> grief
[11:29] <j0nnymac> hey
[11:30] <j0nnymac> if we get a date finalised in the week of june 8th - anyone want to join us for the launch?
[11:30] <Vaizki> 1st of May is a big deal in Finland so the student union of a local uni sent an application for good weather to the meteorological institute
[11:30] <j0nnymac> we will be stealing your goldencross site
[11:30] <Vaizki> it was approved and duly stamped on official letterhead
[11:31] <craag> I can't commit to it, but if I'm free then I'll come along :)
[11:31] <j0nnymac> brill
[11:31] <j0nnymac> right...
[11:31] <j0nnymac> of to apply!
[11:31] <j0nnymac> again
[11:32] <daveake> ok email sent to sentintocaptivity
[11:32] <j0nnymac> ...and the wind authority is a real thing?
[11:32] <craag> no that was a joke
[11:32] <daveake> lol
[11:32] <j0nnymac> nice!
[11:32] <j0nnymac> cant believe they havent come across it before ybh
[11:32] <j0nnymac> tbh
[11:32] <daveake> The CAA don't make it easy to find the correct form either
[11:32] <j0nnymac> no... they dont do they
[11:36] <fsphil> the C stands for Cryptic
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[11:51] <Laurenceb> K6RPT-11 still going :D
[12:16] Nick change: Colbert_ -> Kryczek
[12:23] <Laurenceb> nice http://lygte-info.dk/review/batteries2012/Orbtronic%2018650%203600mAh%20%28Black%29%20UK.html
[12:23] <Laurenceb> almost 1MJ/Kg
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[12:23] <Laurenceb> 973kJ
[12:32] <SpeedEvil> Impressie.
[12:32] <SpeedEvil> ve
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[13:26] <SA6BSS> Star Wars day today, May the force
[13:26] <fsphil> yoda day here. forth of may be with you
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[13:36] <Chetic> daveake: could you add some more pictures to the pi in the sky product page? I'm really curious what the board looks mounted on a pi and what the gps antenna and battery holder look like
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[13:42] <SpacenearUS> New vehicle on the map: 03DG8AR_chase - 12http://tracker.habhub.org/#!qm=All&q=DG8AR_chase
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[15:07] <chrisstubbs> Chetic, 1 sec I have some
[15:11] <chrisstubbs> Disclaimer: I put this together for our local council and some schools, some of the photos and information are from Anthony, Dave and others.
[15:11] <chrisstubbs> http://chris-stubbs.co.uk/pits/pits.pptx
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[15:27] <Ian_> For calculating parachute descent rate what is the combination of items that make up the weight please?
[15:28] <Ian_> a) package b) package & rigging c) package, rigging & parachute d) package, rigging, parachute & ballon envelope
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[15:28] <Ian_> ?
[15:28] <edmoore> c
[15:29] <Ian_> Many thanks edmoore
[15:29] <Ian_> No allowance for a poor burst?
[15:29] <Ian_> Residuals
[15:30] <edmoore> i normally don't bother - on the basis that its own ballistic coefficient should be low
[15:30] <edmoore> so it'll provide lots of its own drag
[15:31] <Ian_> That makes sense. I guess that I will eventually be looking at a 3ft or 4ft chute, but lots of pico devs before we get there.
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[16:29] <SpacenearUS> New vehicle on the map: 03KJ4RSG_chase - 12http://tracker.habhub.org/#!qm=All&q=KJ4RSG_chase
[16:40] <SpacenearUS> New vehicle on the map: 03saddik_chase - 12http://tracker.habhub.org/#!qm=All&q=saddik_chase
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[16:43] <j0nnymac_> hey folks am looking to purchase a light sensor and its spec says it will work to -30 degrees. our max alt takes us to -60 but will the heat generated by the payload / insulation keep it operating normally?
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[16:46] <mattbrejza> j0nnymac_: if its in the sun it wont get <-30C
[16:47] <j0nnymac_> igenius thanks fella
[16:48] <j0nnymac_> actually
[16:48] <j0nnymac_> what do you mean by 'in the sun'? :)
[16:48] <j0nnymac_> do you mean daytime launch?
[16:51] <Geoff-G8DHE_> Well if its a nighttime launch then it will be lit by a a few million suns?
[16:52] <Geoff-G8DHE_> ;-)
[16:54] <j0nnymac_> ha!
[16:55] <j0nnymac_> hmmm..mind you i suspect the thing will catch fire long before it gets to 20k alt
[17:01] <mattbrejza> whoops distracted
[17:01] <mattbrejza> but yea, tends to be sunny above the clouds
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[17:22] <j0nnymac_> w00t
[17:22] <j0nnymac_> good news that
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[17:59] <SpacenearUS> New vehicle on the map: 03INFCU1 - 12http://tracker.habhub.org/#!qm=All&q=INFCU1
[18:01] <Chetic> chrisstubbs: brilliant! thank you very much :)
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[18:14] <tweetBot> @Tim_Hines: Near space high altitude balloon project coming along nicely! Payload box building in progress. #ukhas http://t.co/jqdNMQnMNe
[18:14] <infaddict> ^^^ Progress at last thanks to long weekend ;-)
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[18:20] <Upu> nice to see you taking your time
[18:22] <Lunar_Lander> I like it too
[18:22] <infaddict> its more life stopping me going faster Upu! But good to take my time and watch and learn along the way.
[18:23] <infaddict> At least tracker electronic issues all sorted and locking on nice and fast now. building up foam in payload to hold everything in place.
[18:23] <infaddict> thx Lunar_Lander
[18:24] <infaddict> then a lick of paint and the antenna. can then finally think of the chute and balloon. Weighs 550g at present.
[18:24] <fsphil> someone replaying the STREEK flight, or is that a new flight?
[18:24] <fsphil> (on ssdv.habhub.org)
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[18:27] <Upu> thing is infaddict when you launch you're going to be comfortable with what you're doing and understand it
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[18:47] <gonzo_> I read that as STREET fight
[18:47] <Upu> infaddict when you do launch let me know and i'll lend you a backup tracker if you want one
[18:49] <fsphil> round one ... FLIGHT
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[19:40] <Reb-SM3ULC> Upu: backup trackers are good :)
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[20:14] <Laurenceb> http://forum.nasaspaceflight.com/index.php?topic=36313.2480
[20:14] <Laurenceb> lolzors 125 pages
[20:15] <Laurenceb> some people have time to burn
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[20:19] <SpeedEvil> Thread needs some aggressive pruning.
[20:19] <lz1dev> so is that EM drive for real?
[20:19] <SpeedEvil> Delete any comments from people that can't actually do relativity based transforms
[20:20] <SpeedEvil> lz1dev: It is real in the sense that it is a physical object that people are saying stuff about.
[20:20] <SpeedEvil> I also have a tomato which is the embodiment of Jesus.
[20:20] <Laurenceb> SPR Ltd looks very dodgey
[20:20] <SpeedEvil> At the moment, there has been no meaningful replication.
[20:21] <lz1dev> really?
[20:21] <SpeedEvil> lz1dev: Ooops. I eated it.
[20:21] <lz1dev> this is why we cant have nice tihngs
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[20:21] <SpeedEvil> By meaningful replication, I mean two different labs trying identical experiments and coming out with answers well within the others error bars.
[20:22] <SpeedEvil> There are various thrust per watt numbers being thrown around.
[20:23] <SpeedEvil> Some would mean violation of conservation of energy accessible to things as slow as wheeled vehicles on earth
[20:24] <SpeedEvil> ~300MPH and you get net energy out.
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[20:24] <adamgreig> so basically we're months away from warp drives, right
[20:24] <lz1dev> hoverboards and flying cars
[20:24] <SpeedEvil> Pretty much.
[20:25] <SpeedEvil> Warp drives, hoverboards, flying cars, free energy.
[20:25] <adamgreig> sick
[20:25] <SpeedEvil> And while that would be really, really cool - I regret I'm gonna need quite extraordinary proof.
[20:25] <fsphil> heavy
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[20:31] Nick change: fl_0 -> fl_0|afk
[20:32] <hiflyer_> hi everyone, please could someone tell me which of these connectors (http://ava.upuaut.net/store/index.php?route=product/category&path=71_66) I should use? I'm hoping to mount an sma connector on a stripboard which will be connected to an ntx2b. Many thanks
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[20:35] <Upu> hi hiflyer_
[20:35] <Upu> http://ava.upuaut.net/store/index.php?route=product/product&path=71_66&product_id=74
[20:35] <Upu> those fit on the edge of a strip board
[20:35] <Upu> you can then make an antenna from one of theseL
[20:35] <Upu> http://ava.upuaut.net/store/index.php?route=product/product&path=71_66&product_id=88
[20:36] <Upu> https://ukhas.org.uk/guides:payload_antenna?s[]=payload&s[]=antenna
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[20:37] <hiflyer_> that's great, thanks. one question: how would you connect that sma mount to the pins on the ntx2b? sorry if that's a stupid question :(
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[20:41] <Upu> not at all
[20:41] <Upu> I wouldn't
[20:41] <Upu> I'd solder the NTX2B into strip board
[20:41] <Upu> then mount that SMA on the edge of the strip board
[20:42] <hiflyer_> ok, so where would pins 1 and 3 (rf ground) and 2 connect to?
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[20:42] <Upu> the SMA connector mounts
[20:42] <edmoore> https://agg.io/u/ntx2.jpg
[20:43] <Upu> with bonus formulas for science
[20:43] <edmoore> note the 'small bit' - keep the lengths as small as possible and trim the rf_out track behind the ntx2
[20:43] <SpacenearUS> New vehicle on the map: 03KF5PGW-8 - 12http://tracker.habhub.org/#!qm=All&q=KF5PGW-8
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[20:44] <jcoxon> edmoore, does hiflyer need the maths as well?
[20:44] <Upu> :)
[20:44] <edmoore> yes otherwise it won't work
[20:44] <jcoxon> fair enough
[20:45] <jcoxon> guess thats why mine never work...
[20:45] <edmoore> reduce the forumla then cut the tracks
[20:45] <Upu> Reminder UKHAS Conference tickets availble, Ed is doing a stand up routine
[20:46] <jcoxon> 26, not bad
[20:46] <jcoxon> edmoore, shall i invite gietz to the conference?
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[20:48] <edmoore> i have four (4!) separate mother-in-law jokes
[20:48] <edmoore> jcoxon, yes definitely
[20:48] <edmoore> he could be session chairman
[20:49] <edmoore> or maybe in charge of the diversity commitee
[20:49] <jcoxon> he went to the cam uni computer museum this weekend
[20:49] <jcoxon> sent me a picture of him writing code in basic
[20:49] <jcoxon> where he was rude to me
[20:49] <jcoxon> typical
[20:49] <jcoxon> print "rude comment"
[20:51] <edmoore> we all need our motivations to learn
[20:52] <edmoore> was that with his lady?
[20:52] <jcoxon> indeed
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[21:06] <SpeedEvil> https://www.flickr.com/photos/spacexphotos/17369785125/in/photostream/lightbox/
[21:06] <SpeedEvil> That is an awesome image
[21:06] <SpeedEvil> (F9 coming in for not-landing)
[21:07] <fsphil> oblig american flag in the bg
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[21:11] <SpeedEvil> Flagburning - doing it right
[21:11] <Laurenceb> interesting singed kerosene tank?
[21:12] <SpeedEvil> the oxygen tank may also be, it's just got a thickish layer of frost over it
[21:12] <Laurenceb> yeah
[21:13] <SpeedEvil> Or maybe the soot diddn't stick to the initial layer of frost
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[21:13] <Laurenceb> that does not look like very good control loop response :P
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[21:14] <SpeedEvil> It would be lovely to get proper data.
[21:14] <SpeedEvil> (complete telemetry dumps, with all the context)
[21:14] <SpeedEvil> That does seem unlikely :)
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[21:33] <Laurenceb> edmoore: so what does it feel like knowing skylon is redundant now nasa has warp drive?
[21:33] <Laurenceb> /troll
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[21:48] <SpacenearUS> New vehicle on the map: 03KJ4RSG_chase - 12http://tracker.habhub.org/#!qm=All&q=KJ4RSG_chase
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[22:45] <FreddyF> !flight JKG1
[22:45] <SpacenearUS> 03FreddyF: Can't find a flight doc matching your query
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[22:53] <FreddyF> Good morning/evening, well...
[22:53] <FreddyF> I need a flight doc to be approved: JKG1
[22:53] <FreddyF> But I don't know what to do / whom to ask.
[22:54] <FreddyF> Could anypne advise me what to do?
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[23:26] <FreddyF> !flight Justus-1
[23:26] <SpacenearUS> 03FreddyF: Can't find a flight doc matching your query
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[00:00] --- Tue May 5 2015