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[07:23] <infaddict> morning all
[07:27] <fsphil> morn
[07:47] Action: SpacenearUS is going for a nap.
[07:47] Action: SpacenearUS is back!
[07:51] <baird> and their silly 5 second naps.
[07:52] <baird> Computers and their silly 5 second naps. They'll want 2 second lunch breaks next.
[07:52] <lz1dev> thats not the way to talk to our future overlords
[07:53] <fsphil> future?
[07:56] Nick change: gonzo___ -> gonzo_
[07:56] <lz1dev> rebel for life
[07:58] <garymortimer> They take notes you know (the overlords)
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[08:31] Action: SpacenearUS is going for a nap.
[08:31] Action: SpacenearUS is back!
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[08:31] Action: fsphil is also going for a nap. I may be some time.
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[08:33] <SpacenearUS> New vehicle on the map: 03yolo_chase - 12http://tracker.habhub.org/#!qm=All&q=yolo_chase
[08:36] Action: SpacenearUS is going for a nap.
[08:36] Action: SpacenearUS is back!
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[09:09] <russss> https://twitter.com/kpe/status/604418558181785600
[09:14] <infaddict> nice - wonder if that camera has a SD card in it ;-)
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[09:40] <Darkside> looks suspiciously like a gopro pens
[09:40] <Darkside> lens*
[09:42] <russss> yeah it says "gopro housing" on it
[09:42] <Darkside> lol
[09:42] <Darkside> didnt see that
[09:42] <Darkside> nice
[09:42] <russss> https://pbs.twimg.com/media/CGNXVO2VIAAjkI-.jpg
[09:44] <craag> Hopefully one of them had the sense to take a spanner kit on holiday to the bahamas :P
[09:44] <russss> also Elon's reply: https://twitter.com/elonmusk/status/605460768516014080
[09:44] <eroomde> those look like they're possibly titanium fixings
[09:44] <eroomde> in that they look a lot like our titanium fixings
[09:44] <infaddict> Yep i thought Go Pro right away
[09:55] <Laurenceb> is spacex going to try an on land landing next launch?
[09:55] <Laurenceb> GoPro WTF
[09:55] <Laurenceb> maybe they have a firmware build for it that doesnt totally suck
[09:56] <eroomde> or they don't really care and just treat it as a nice-to-have
[09:56] <Laurenceb> mine has a habit of not booting correctly
[09:56] <Laurenceb> amongst about 10 other bugs
[09:56] <Laurenceb> reliability rate is about 60% at present
[09:57] <craag> Mine is fine as long as I don't use the wifi functionality at all.
[09:57] <Laurenceb> for boot, take video, shut down to low power mode without corrupting video
[09:57] <Laurenceb> haha mine has bjorked wifi
[09:57] <craag> With either the remote, or a phone connected, it fails 50% of the time :/
[09:57] <craag> hard freezes
[09:57] <Laurenceb> yeah been there seen that
[09:58] <Laurenceb> I'm going to try emailing GoPro to see what they can suggest
[09:59] <Laurenceb> maybe its card related, or i have the wrong firmware
[09:59] <gonzo_> why had it become normal to accept buggy firmware
[09:59] <Laurenceb> heh
[09:59] <Laurenceb> bbl
[09:59] <craag> I'm using one of the go-pro recommended sandisk cards, and have reflashed the latest firmware a couple of times :/
[09:59] <gonzo_> once, if your tv kept switching off or changing chan, you would take it back to the shop as fauloty
[10:00] <gonzo_> now it's accepted that you arse about power cycling and trying upgrades
[10:00] <craag> Well the problem is reproducing the fault.. sometimes takes a couple of hours to fail.
[10:01] <craag> but yeah I'd be interested to hear if you get a useful response Laurenceb
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[11:33] <Laurenceb__> that spacex part looks like fairing?
[11:33] <Laurenceb__> or interstage?
[11:34] <adamgreig> it's labelled "FAIR" and elon said thanks, this will help us know about fairing reusability
[11:34] <adamgreig> so...
[11:34] <Laurenceb__> ah
[11:34] <Laurenceb__> im still perplexed that they use gopro
[11:34] <adamgreig> it is a bit mysterious
[11:35] <adamgreig> wonder how they remote-on them
[11:35] <adamgreig> bet that's a good part of the checklist
[11:35] <Laurenceb__> maybe they have a custom firmware build
[11:35] <adamgreig> that would be a fun find
[11:35] <Laurenceb__> its not like its that hard i guess
[11:35] <adamgreig> copy the SD card before you post it back
[11:35] <Laurenceb__> gopro is basically ambarella reference design
[11:35] <Laurenceb__> itd be on internal flash
[11:36] <Laurenceb__> not so easy, but you could root the camera if you could get it to boot
[11:36] <adamgreig> I mean for the video
[11:36] <Laurenceb__> boring :P
[11:37] <Laurenceb__> i guess the economics of paying a member of their staff to write custom firmware might just work
[11:38] <Laurenceb__> interesting attachment
[11:39] <Laurenceb__> looks like silicone to the CF
[11:40] <x-f> at what altitude does the fairing separate?
[11:40] <russss> dude said he'd looked at the SD card and there was "nothing" on it
[11:40] <adamgreig> aw
[11:40] <russss> x-f: above any sensible atmosphere. Something like 80km I think.
[11:41] <Laurenceb__> i dont see any cables off it
[11:41] <Laurenceb__> maybe they use wifi onboard the rocket lol
[11:41] <russss> probably internal
[11:41] <Laurenceb__> unlikely to be embedded in CF
[11:45] <Laurenceb__> heh this looks overkill
[11:45] <Laurenceb__> http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=37642.0;attach=835673;image
[11:46] <Laurenceb__> maglev "emdrive" test bench
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[11:53] <j0nnymac> hey folks
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[11:55] <j0nnymac> hey folks - anyone from the cambridge university high altitude club in?
[11:55] <christop_> scom 2012 lose of sql
[11:56] <christop_> Must get used to two keybaords
[11:56] <j0nnymac> :)
[12:00] <j0nnymac> is there a way of getting hold of past chats on this IRC channel
[12:00] <j0nnymac> was chatting to a couple of folks here over the weekend but cannot remember their names
[12:02] <mattbrejza> winds not playing ball down here?
[12:03] <craag> j0nnymac: http://habhub.org/zeusbot/
[12:03] <adamgreig> j0nnymac: I've chased up again in CUSF but doesn't look likely that people will be able to help 10-15 June, I'm not back til 22nd
[12:04] <mattbrejza> j0nnymac: you might get a 'do whatever you want' notam for 6-7am
[12:06] <j0nnymac> hey buddy
[12:06] <mattbrejza> hey
[12:07] <j0nnymac> thanks for chasing up.... im guessing its not on for us to just rock up and do it ourselves?
[12:07] <j0nnymac> Hey Adam, Hey Marr
[12:07] <j0nnymac> Matt
[12:09] <j0nnymac> ooh who was the chap that did it from the village, rather than the Churchill grounds?
[12:09] <mattbrejza> you might be lucky with new forest winds though, over hte course of a week there is likely to be a good day
[12:09] <j0nnymac> true - but we only have a window of 2 days :(
[12:09] <mattbrejza> (in terms of not going South/East is concerned, this week just seems too strong)
[12:10] <mattbrejza> is that all you asked for or is that what you were given?
[12:10] <j0nnymac> had some interesting times with CAA getting back to us on our locations
[12:10] <craag> afaik a CUSF member has to be with you, as they are the legal users of the NOTAM.
[12:10] <craag> (re: cambridge chruchill)
[12:10] <j0nnymac> - hey craag - yep thats what i assumed and expected (and totally understand)
[12:10] <j0nnymac> partly both - we asked for a week
[12:11] <mattbrejza> ive had no issues with asking for carparks in the middle of the country before :/ (address wise)
[12:11] <j0nnymac> but it took ages (mainly as we had asked for lots of locations)
[12:11] <j0nnymac> so in the end i phoned and asked - if there was a way we could get a nod on a location by the end of the day
[12:11] <adamgreig> yea we have to have someone listed on the NOTAM present
[12:11] <j0nnymac> and was given that one (really so we cold planned)
[12:11] <j0nnymac> could plan...
[12:11] <j0nnymac> even
[12:12] <mattbrejza> hmm
[12:12] <j0nnymac> might go back to them - and ask
[12:12] <j0nnymac> if we can extend it
[12:13] <j0nnymac> we went a bit overboard in our locations - and a lot of them were real no chancers
[12:13] <j0nnymac> Hursley lawn - which is nr the airport
[12:13] <j0nnymac> Farley Mount - again airport
[12:13] <mattbrejza> there is another site near salisbury that has the restriction that it has to go south, and launch in the morning
[12:14] <mattbrejza> combined with hte site in the new forest that it has to not go south/east then you are covered
[12:14] <mattbrejza> although obviously it might just be a sea landing all week
[12:14] <j0nnymac> that is interesting - mind you if it goes south from salsbity
[12:14] <j0nnymac> salisbury - yeah thinking 'sea'
[12:14] <j0nnymac> :)
[12:15] <j0nnymac> still though
[12:15] <j0nnymac> at least we could launch
[12:15] <j0nnymac> and i might be able to expense back the goodies - just a shame we might lose the really good pics
[12:15] <mattbrejza> persumably you were given the paperwork, then have to email within 48hrs to say if youre going ahead so he can issue the notam?
[12:16] <j0nnymac> no we dont have that yet
[12:16] <mattbrejza> or just get a ferry to france to pick it up...
[12:16] <j0nnymac> only a word of mouth from CAA chap
[12:16] <j0nnymac> saying that he would agree 14/15th June
[12:16] <mattbrejza> ok paperwork will come later then
[12:16] <j0nnymac> fingers crossed
[12:16] <j0nnymac> :)
[12:16] <mattbrejza> did he say what restrictions that site will have?
[12:17] <j0nnymac> yeah - no fly if wind is heading east (bummer)
[12:17] <j0nnymac> no fly if its heading south( which is fine by me)
[12:17] <mattbrejza> well what that actually means is it cant fly east/south while at airplane height
[12:17] <j0nnymac> i really dont want it to go south from the New Forest
[12:17] <j0nnymac> :)
[12:18] <j0nnymac> oooh..
[12:19] <j0nnymac> but i guess though if the predictor says there is an easterly wind - its still a no go?
[12:21] <mattbrejza> well east wind at ~ground level or east wind >10km?
[12:23] <j0nnymac> hmmm thats interesting...ive soley been using the predictor to see if balloon will go on a particular direction
[12:25] <mattbrejza> its just got to keep well out of the way of the airport approaches (although next time you have contact is best to just confirm this for your own sake)
[12:25] <j0nnymac> gotcha... makes sense
[12:26] <j0nnymac> oops
[12:26] <j0nnymac> hey - how do i respond to someone so my name comes up red :)
[12:26] <j0nnymac> sorry real n00b to IRC
[12:27] <mattbrejza> like this j0nnymac ?
[12:27] <mattbrejza> names generally tab complete
[12:27] <j0nnymac> yes - just like that
[12:27] <j0nnymac> mattbrejza: aha!!!
[12:27] <mattbrejza> success
[12:28] <j0nnymac> well that is something!
[12:28] <mattbrejza> how is the payload coming along? i think you orginally wanted to launch next week?
[12:29] <j0nnymac> yeah - between 8 - 12th
[12:29] <Vaizki> we have a very successful "internet policeman" thing in Finland where 3 policemen are reachable through social media like facebook to respond to bullying, give advice etc
[12:29] <Vaizki> WELL they went on IRC today
[12:29] <j0nnymac> but i think 15th might be better - the later the better in fact :)
[12:29] <Vaizki> on IRCnet.. now the nick is stolen, they are kickbanned from the channel etc :D
[12:29] <j0nnymac> i think its going well - but there are a few small nicggles
[12:29] <j0nnymac> niggles
[12:29] <j0nnymac> such as the ballooon not having turned up yet
[12:29] <Vaizki> so they are now on freenode ;)
[12:30] <j0nnymac> which has the payload container with it
[12:30] <j0nnymac> but aside from that
[12:30] <j0nnymac> i think the guys have got the payload working pretty well
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[12:30] <j0nnymac> hmmm... they have made this...
[12:30] <mattbrejza> make sure its tested ;)
[12:30] <mattbrejza> well
[12:31] <j0nnymac> https://bluemiximp1.wordpress.com/
[12:31] <j0nnymac> to track progress
[12:31] <j0nnymac> yeah!
[12:31] <j0nnymac> for sure - hey what do you guys do to test it?
[12:31] <craag> Ah using a PITS
[12:31] <j0nnymac> any tricks of the trade
[12:31] <j0nnymac> (yep - wanted to reduce risk - enough risk popping up as it is)
[12:33] <mattbrejza> most of it comes down to testing and not being too rushed at the last minute
[12:33] <mattbrejza> putting in the right about of He helps too...
[12:33] <j0nnymac> yes - good point
[12:33] <j0nnymac> can I ask where you source your helium from?
[12:33] <craag> get everyone to the launch site early
[12:34] <mattbrejza> balloonhelium.vo.uk
[12:34] <j0nnymac> sweet
[12:35] <craag> leave an hour of buffer time in the launch plan ideally, especially for a first launch.
[12:35] <j0nnymac> aye - was thinking of getting there a fair bit of time ahead
[12:35] <j0nnymac> how do you guys do for power when you are tracking on lcation
[12:35] <mattbrejza> used to use inverters with cars
[12:36] <mattbrejza> now its just a tablet/phone+radio
[12:37] <mattbrejza> it helps to kit out your car in advance if youre gonna be filling it with tech
[12:37] <j0nnymac> hmmm...yes
[12:37] <mattbrejza> and make it easy to get in and out of the car ;)
[12:37] <j0nnymac> good grief
[12:37] <j0nnymac> ive got a biggish hatchback
[12:38] <craag> bigger car can make it a lot easier
[12:38] Action: craag chases in a corsa :D
[12:38] <j0nnymac> mind you
[12:38] <mattbrejza> although you do have mains and internet wired into your car...
[12:38] <j0nnymac> ive seen predictions that go a LOOONG way
[12:39] <j0nnymac> umm...
[12:39] <craag> Yeah true
[12:39] <j0nnymac> tbh - was wondering about 3g/4g coverage out there
[12:39] <j0nnymac> whats it like round Golden Cross
[12:39] <j0nnymac> >
[12:39] <j0nnymac> ?
[12:40] <craag> Need to get a mains socket properly mounted into the dash next
[12:40] <craag> :P
[12:40] <j0nnymac> :)
[12:40] <mattbrejza> well craag 's car has a 3g antenna on top of it so the wifi was pretty good ;)
[12:40] <j0nnymac> oh wow
[12:40] <craag> golden cross was ok iirc, not great signal with extra antenna, but there was 3G.
[12:40] <mattbrejza> but as far as internet goes, dont rely on it
[12:40] <j0nnymac> you really have a 3g antenna
[12:40] <j0nnymac> ?
[12:40] <craag> I use a magmount GSM antenna plugged into a usb dongle
[12:41] <craag> but usb dongles with antenna sockets are getting hard to find
[12:41] <j0nnymac> i have a funcube (sounds odd) that be ok
[12:41] <j0nnymac> ?
[12:41] <craag> funcube?
[12:41] <j0nnymac> yep...
[12:41] <Vaizki> I'm just waiting for some saudis to pick up this hobby and chase balloons with private jets
[12:41] <j0nnymac> http://funcubedongle.3dcartstores.com/FUNcube-Dongle-Pro-A20_p_27.html
[12:42] <craag> j0nnymac: Thats a receiver
[12:42] <craag> radio receiver
[12:42] <craag> not gsm dongle
[12:42] <j0nnymac> ooh sorry
[12:42] <j0nnymac> yes
[12:43] <craag> I have one of these: http://www.three.co.uk/Support/Devices/Modems/Huawei/E353
[12:43] <Vaizki> or get one of those portable 3g-wifi hotspots
[12:43] <craag> 10 quid a month to Three for 1GB of data
[12:43] <Vaizki> size of a bar of soap and will give you wifi for all the devices in and around the car
[12:43] <craag> Yeah the mifi things are good too
[12:43] <craag> battery powered as well
[12:44] <j0nnymac> wow
[12:44] <j0nnymac> thats pretty good
[12:44] <j0nnymac> 20quid...
[12:45] <Vaizki> http://www.amazon.co.uk/HUAWEI-E5330-Genuine-Stock-Mobile/dp/B00KR51QCO/ref=sr_1_1?ie=UTF8&qid=1433249100&sr=8-1&keywords=mifi
[12:45] <Vaizki> I have one of these
[12:45] <daveake> Those are good
[12:45] Action: craag back to work
[12:45] <daveake> Much better coverage than the older model I had
[12:45] <Vaizki> put a SIM in with 3G data plan and you have wifi
[12:45] <j0nnymac> :)
[12:45] <craag> talk to you soon j0nnymac !
[12:45] <j0nnymac> thanks craag
[12:47] <j0nnymac> adamgreig: hey buddy - if we did manage to postpone to 22nd would you be around ?
[12:47] <Vaizki> and you can take that out of the car as well, just keep it plugged into a USB socket inside the car, it has a battery in it so will last several hours when unplugged
[12:48] <j0nnymac> aah sweet
[12:48] <pc1pcl> I've got the E5372 which came from the internet provider the last time I extended/upgrade my subscription.
[12:51] <j0nnymac> <looking>
[12:51] <j0nnymac> nice!
[12:51] <mattbrejza> im around the week 22nd if its good down here
[12:52] <j0nnymac> oooh brill!!
[12:52] <j0nnymac> thanks fella
[12:53] <adamgreig> likewise yea i get back from hong kong 20th so can be around from 22nd (though would need one other person here)
[12:53] <adamgreig> well actually if you have a car probably not
[12:54] <j0nnymac> I do have a car :)
[12:55] <j0nnymac> would you mind if i checked the availability with the team - and if they can push back - go for 22nd?
[12:55] <j0nnymac> they have an msc write up to do - so dont know if its possible
[12:56] <j0nnymac> but the cambridge site looks to be nice and central
[12:56] <adamgreig> sure, find out with them, I'll pencil in the 22nd
[12:56] <j0nnymac> and less chance of losing our goodies if the wind turns
[12:57] <j0nnymac> actually adamgreig maybe the 23rd is better
[12:57] <j0nnymac> if thats ok with you?
[12:58] <adamgreig> sure (morning only)
[12:58] <j0nnymac> cool
[12:58] <j0nnymac> thanks again mattbrejza and adamgreig ill check with the crew
[12:58] <mattbrejza> and the weather ;)
[13:23] <j0nnymac> ywa
[13:23] Last message repeated 1 time(s).
[13:23] <j0nnymac> yes
[13:24] <j0nnymac> greif
[13:24] <j0nnymac> oh dear... i clearly need to go home
[13:24] <j0nnymac> :)
[13:28] <eroomde> the day is still young sadly
[13:29] <j0nnymac> :)
[13:32] <nick_> My day is both joung and old.
[13:32] <nick_> Since I've not done much yet, but also I don't have much left to do :)
[13:32] <nick_> Unless sitting on trains counts as much.
[13:33] <eroomde> trains don't count as work
[13:33] <eroomde> i'm at a remote site
[13:33] <eroomde> which involves not being massivewly busy because we're tied to them
[13:33] <eroomde> but not being able to get on with other things especially either
[13:33] Action: SpeedEvil imagines eroomde tied to train-tracks, in a 1920s silent movie stylee.
[13:36] <nick_> I had the make the oddly inconvenient trip over to some upstart uni.
[13:38] <nick_> eroomde: is the engineering department near the physics buildings?
[13:41] <eroomde> no
[13:42] <nick_> It's actually in town?
[13:51] <eroomde> sorry
[13:51] <eroomde> had to go and rescue a big temporary tent caught in the wind
[13:51] <eroomde> so physics is out in west cambridge site
[13:51] <eroomde> the various physics depts
[13:52] <eroomde> but engineering's main building is in town
[13:52] <eroomde> trimpington st
[13:52] <eroomde> trumpington*
[13:52] <eroomde> but there are some engineering departments at the west cambridge site
[13:52] <eroomde> eg CAPE - the centre for advanced photonics and electronics
[13:52] <eroomde> and the Institute for Manufacturing
[13:52] <eroomde> Whittle Labs (turbomachinery) etc
[14:00] <Laurenceb__> oops
[14:01] <Laurenceb__> wow that was intense
[14:01] Action: Laurenceb__ just got into a fist fight with someone
[14:02] <Laurenceb__> a member of the house of lords
[14:02] <Laurenceb__> but i should probably shut up on publicly logged channel
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[14:03] <adamgreig> lol
[14:04] <Laurenceb__> he hit first
[14:04] <adamgreig> you punched a lord?
[14:04] <Laurenceb__> (university event)
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[14:04] <Laurenceb__> I need to get out of this place
[14:04] <SpeedEvil> Laurenceb__: :)
[14:04] <Laurenceb__> moving swiftly on....
[14:05] <Laurenceb__> if there a timed schedule for the conference?
[14:05] <SpeedEvil> Was it lord Freud?.
[14:05] <Laurenceb__> i need to know how long to make my presentation :D
[14:05] Action: SpeedEvil crosses fingers.
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[14:11] <SpacenearUS> New vehicle on the map: 03W8MHS-11 - 12http://tracker.habhub.org/#!qm=All&q=W8MHS-11
[14:20] <j0nnymac> hey folks - how do you manage to get your HaB device registered on the tracker.habub.org map?
[14:22] <Upu> hey j0nnymac
[14:22] <Upu> you need to make a payload doc
[14:22] <Upu> to descibe it so the tracker knows how to decode it
[14:22] <Upu> have you got something transmitting ?
[14:24] <Laurenceb__> Upu: is there a timetable for the conference?
[14:24] <Laurenceb__> as in talk1: 30 minutes, talk 2:Letc ?
[14:24] <Upu> not yet Laurenceb__
[14:24] <j0nnymac> not yet - not for a couple of weeks
[14:24] <Laurenceb__> ah i see
[14:24] <Laurenceb__> np
[14:24] <daveake> j0nnymac You're using a PITS board ?
[14:24] <Upu> get something transmitting j0nnymac
[14:24] <j0nnymac> yes i am indeed
[14:25] <daveake> Then you should task yourself with RTFM'ing ...
[14:25] <daveake> ... http://www.pi-in-the-sky.com/index.php?id=getting-on-the-map
[14:25] <j0nnymac> cool - that is awesome beans
[14:25] <j0nnymac> cheers folks - ill take a read
[14:25] <Upu> Nothing offical yet may sit down and work something out with danielsaul when I get back
[14:25] <Upu> how long do you and Leo need ?
[14:25] <Laurenceb__> Upu: are all the talks for the morning session?
[14:26] <Laurenceb__> 40minutes maybe
[14:26] <Upu> can you get it in 30 ?
[14:26] <Laurenceb__> yeah
[14:26] <eroomde> i can do 10
[14:26] <eroomde> ten minutes of parachute bliss
[14:26] <Upu> I think our target is 25 + 5 for Q's
[14:26] <Upu> lol
[14:26] <Laurenceb__> heh we will be finished in a couple of hours at this rate
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[14:46] Nick change: fl_0 -> fl_0|afk
[14:54] <SpacenearUS> New vehicle on the map: 03PI_SKY_LORA - 12http://tracker.habhub.org/#!qm=All&q=PI_SKY_LORA
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[15:18] <Geoff-G8DHE-M> daveake, you need a test that if the callsign hasn't been changed then send the URL above rather than the real telemetry ;-)
[15:19] <daveake> Oh, the release code now has a default ID of CHANGE_ME
[15:19] <daveake> I await someone creating a payload doc for that ....
[15:19] <Geoff-G8DHE-M> That'll do!
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[15:41] <infaddict> New vehicle on the map: CHANGE_ME
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[16:20] Nick change: fl_0 -> fl_0|afk
[16:27] <Laurenceb__> why does anyone use matlab :-/
[16:27] <Laurenceb__> horrible buggy junk
[16:28] Action: SpeedEvil always thinks of matlock.
[16:29] <nick_> Laurenceb__: because MathWorks has good salespeople?
[16:29] <Laurenceb__> yup
[16:29] <Laurenceb__> heh matlock
[16:29] <Laurenceb__> nice place
[16:30] <Laurenceb__> they have a mining museum with a "play mine".. i remember from when i was 4 :D
[16:36] <_charlie> whats the problem laurence
[16:36] <Laurenceb__> plots
[16:37] <Laurenceb__> trying to get logscale spectrograms to work
[16:38] <_charlie> what isnt working?
[16:38] <eroomde> funny i have just been doing that
[16:38] <eroomde> in python
[16:38] <eroomde> no probs
[16:39] <nick_> matplotlib?
[16:39] <eroomde> yep
[16:39] <nick_> Or dare I ask: ROOT?
[16:40] <russss> I love/hate matplotlib
[16:40] <russss> in broadly equal measures
[16:40] <russss> I have ~400 lines of horrible code which makes my plots not look awful
[16:41] <nick_> The ROOT defaults are now not ugly.
[16:41] <nick_> (I mean the plots are not ugly, the framework will always be ugly)
[16:41] <russss> heh
[16:42] <russss> why are plotting frameworks all so crap
[16:42] <nick_> ROOT's problem is that it isn't a plotting framework.
[16:42] <_charlie> and here I am trying to figure out how to change the x axis on a graph in excel to something pretty :o)
[16:43] <nick_> It was a data format (and it's quite good at that) which spawned into a data analysis framework, with random developing of different plotting methods.
[16:43] <Laurenceb__> _charlie: it can only take square pixels
[16:43] <russss> http://stanford.edu/~mwaskom/software/seaborn/ is a relatively nice matplotlib wrapper I found the other day
[16:43] <_charlie> ah :/
[16:43] <Laurenceb__> I need to try this
[16:44] <Laurenceb__> I've made it workj in gnuplot
[16:44] <nick_> So you can have a 2D graph and a 2D histogram, which both have axis types, but you can do histo.SetXTitle() but have to do graph.GetXaxis().SetTitle(), etc. :(
[16:44] <Laurenceb__> http://i.imgur.com/bo2vQmk.jpg
[16:44] <russss> unfortunately its default styles still aren't perfect and changing them is even more difficult than changing matplotlib directly
[16:46] <russss> https://plot.ly/ is quite cool but why do I need an online service to make decent graphs, I don't even
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[16:48] <eroomde> i don't spend much time making matplotlib plots look especially stylistically pretty
[16:48] <Laurenceb__> lucky for you
[16:48] <eroomde> i just make sure they show what i want
[16:48] <nick_> eroomde: because you don't have to publicise your work.
[16:48] <Laurenceb__> seems to be my job description :-/
[16:48] <eroomde> we discuss them and decide what to do next
[16:48] <eroomde> nick_: yup
[16:48] <Laurenceb__> yeah, thats how it should be :-/
[16:49] <nick_> When you need 3k people to agree to publish a paper any idiot can bitch and moan about the plots not looking correct.
[16:49] <eroomde> i can see that
[16:49] <eroomde> i'm not mega keeny on webby graphs
[16:49] <_charlie> any idea hwo to make the x axis look pretty here? http://picpaste.com/pics/tempvsalt-ZWisNqO2.1433263728.png
[16:49] <eroomde> which are normal graphs with pastel colours and alpha channels and lots of sans-serify fonts that are only just not white enough to be just visible
[16:50] <eroomde> and whitespace gaps everywhere
[16:50] <nick_> _charlie: put it in the correct place, ie underneath all the data points.
[16:51] <nick_> Have a sensible and consisten number of figures in your numbers, and reduce the number of them.
[16:51] <SpeedEvil> Also, round to hectameters
[16:51] <_charlie> thanks nick, i mean the numbers? I know it's taking them directly from the data, but something like 500 1000 would be much easier
[16:51] <SpeedEvil> and put up a graph
[16:51] <SpeedEvil> err
[16:51] <SpeedEvil> put up a grid
[16:51] <eroomde> http://imgur.com/ZV9Gcwk
[16:51] <nick_> Also, what are you really plotting? The x axis isn't linear.
[16:52] <_charlie> x axis is altitude
[16:52] <nick_> But the numbers seem to be randomly picked.
[16:52] <SpeedEvil> eroomde: wouldn't it be really fun if 50 years down the line, that turns out to be causal.
[16:52] <_charlie> i guess time would be a better option
[16:52] <eroomde> it's altitude but sampled in time right?
[16:52] <_charlie> yep
[16:52] <nick_> IS the x axis really the measurement number?
[16:52] <eroomde> which is Not Cool
[16:53] <_charlie> No idea how to plot the two simultaenously in excel
[16:53] <eroomde> nick_: he'll have a column which is the altitude every 5s or something, during a flight
[16:53] <_charlie> not cool :(
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[16:53] <eroomde> so the difference between successive rows is a function of vertical velocity, which is not constant throughout a flight
[16:53] <nick_> But the axis should be the altitude, not the # of the measurement.
[16:53] <eroomde> what you want charlie it to plot temp vs alt properly
[16:53] <_charlie> yep
[16:53] <eroomde> you'll then see an interesting hysteresis effect
[16:54] <_charlie> yep ed, but alas no idea how to do taht
[16:54] <eroomde> well doing analysis in excel is a doomed enterprise anyway
[16:54] <eroomde> it's probably possible but i don't know how to do it and wouldn't really want to try
[16:54] <_charlie> possible in matlab? I could run down to the library?
[16:55] <eroomde> is there not a chart magic thing option in excel?
[16:55] <nick_> Use Python and matplotlib
[16:55] <eroomde> for scatter plots between altitude and temperature?
[16:55] <_charlie> err i'll check
[16:55] <eroomde> this would be my advice too (what nick_ said)
[16:55] <nick_> If you can send a balloon up a few km then you can learn Python
[16:56] <eroomde> :)
[16:56] <_charlie> lol ok
[16:56] <ibanezmatt13> I plotted some of my flight data like this, went for the stylish route http://pasteboard.co/VsR9FNG.png :)
[16:56] <nick_> (Actually, I also assumed you are able to type, given you're on IRC)
[16:57] <_charlie> i am using my nose, but yes I can type ;) :P
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[16:57] <_charlie> any recommended tutorials for python?
[16:58] <eroomde> excel makes me cry, i work with customers who insist on it
[16:58] <russss> I'd argue gnuplot is easier than trying to deal with matplotlib
[16:58] <eroomde> i have to be nice as they're customers
[16:58] <nick_> https://www.python.org/about/gettingstarted/ ?
[16:58] <eroomde> but
[16:58] <nick_> eroomde: some of my friends have to use it in their jobs.
[16:58] <nick_> Operational reasearch or finance.
[16:59] <nick_> :(
[16:59] <eroomde> 'let's have a 2d array of data as a data structure, and then let's overlap it a bit with a graphical representation of it'
[16:59] <eroomde> 'and let's put the 2d array 3 columns in and 4 columns down to fuck with csv parsers when i send the csv export to my consultant'
[17:00] <nick_> Do you charge by the row?
[17:00] <_charlie> lol
[17:00] <eroomde> i have considered charging 2x normal rate for paperwork and munging data into machine-parsable formats
[17:00] <_charlie> thanks nick
[17:00] <Vaizki> python is what I use but I would prefer to have the OPTION of stricter typing and not a big fan of the indentation as syntax
[17:00] <eroomde> Vaizki: then python 3.5 is for you
[17:00] <nick_> Go for Go
[17:01] <Vaizki> eroomde: really?
[17:01] <mattbrejza> we can use the verilog if else format if youd prefer ;)
[17:01] <Vaizki> nick_: no go.
[17:01] <eroomde> Vaizki: it has optional typing
[17:01] <eroomde> iirc
[17:01] <eroomde> or maybe they decided not to put it in 3.5, don't remember. anyway it's under active discussion and development
[17:02] <nick_> Optional typing is not pythonic.
[17:02] <eroomde> it is if guido says it is
[17:02] <Vaizki> eeeep it's done via comments
[17:02] <nick_> No, it's a sign someone ha Guido under mind control.
[17:02] <eroomde> Vaizki: no it isn't
[17:02] <Vaizki> m = Manager() # type: Manager
[17:02] <Vaizki> m = Employee() # Fails static check
[17:02] <eroomde> you're misreading the right thing or reading the wrong thing
[17:03] <Vaizki> could be
[17:03] <eroomde> back in 5
[17:03] <Vaizki> oh ok I read the wrong thing ;)
[17:04] <russss> https://www.python.org/dev/peps/pep-0484/
[17:04] <Vaizki> yea reading that now
[17:05] <Vaizki> skimmed pep-0483 and got alarmed
[17:05] <arko> https://www.parallella.org/2015/06/01/a-new-parallella-software-defined-radio-platform/ neat sdr.. would make for a nice mobile decoder
[17:07] <eroomde> can't help you with the indentation though Vaizki
[17:08] <eroomde> but i've never really had any opinion on whitespace vs bracks vs whatever
[17:08] <Vaizki> there is a patch for python that allows { } use
[17:08] <mattbrejza> vs using begin/end instead of {} ?
[17:08] <eroomde> i don't understand why it gets people worked up, in the same way i just can't empathise with someone who is colorblind or has synesthesia
[17:08] <Vaizki> well it's painful if you need to reindent code
[17:08] <eroomde> it's literally a meaningless thing to me
[17:09] infaddict (~infaddict@ left irc:
[17:09] <Vaizki> well it's not for me. I can't just easily bump 200 lines of code behind a new if ()
[17:09] <nick_> The most painful thing is if you're using an old python and some idiot you work with has an editor that randomly decides to use tabs and/or spaces.
[17:09] <Vaizki> I have to reindent those 200 lines. often on a customer machine with only vi on it
[17:10] <nick_> I think 3.3 kicks up errors if you mix them, no?
[17:10] <_charlie> eroomde: so to plot temp vs altitude properly, I'll want to plot temp and altitude vs time? correct?
[17:10] <Vaizki> you can cheat by ending every block with 'pass' though.
[17:10] <Vaizki> but it's ugly as sin to do so
[17:11] <nick_> Yeah, "pass" should only be a promise to write some code later.
[17:11] <eroomde> _charlie: no
[17:11] <eroomde> temp vs alt
[17:11] <eroomde> or temp vs time
[17:11] <eroomde> not 3 variables at once
[17:11] <_charlie> ok
[17:12] <eroomde> so in excel
[17:12] <Reb-SM3ULC> arko: how much for complete package.. $200?
[17:12] <eroomde> you should be able to do a scatter plot
[17:12] <arko> RealBorg: no idea
[17:12] <eroomde> which has temp on the y axis and alt on the x axis
[17:12] <nick_> In excel can't you just highlight the two columns and click "plot" or something?
[17:13] <eroomde> yes that's what's creating that i suspect
[17:13] <eroomde> but he wants a scatter plot
[17:13] <eroomde> just plotting (altitude, temperature) tuples
[17:13] <eroomde> which should give him a nice hyseresis curve
[17:13] <nick_> Doesn't it default to a scatter plot?
[17:13] <eroomde> i don't know i've not used it for years
[17:14] <Geoff-G8DHE-M> No you choose type of graph before selecting data
[17:14] <ibanezmatt13> is hysteresis where it returns back to its starting point via a different path?
[17:14] <_charlie> ok
[17:14] <eroomde> ibanezmatt13: yes
[17:14] <ibanezmatt13> right, remembered it from stress/strain graphs for polymers
[17:15] <eroomde> exactly
[17:15] <eroomde> so it'll probably be cooler for a given alt on the way down
[17:15] <eroomde> because it doesn't instantaneously equivalise with its surroundings
[17:15] <eroomde> er, equalise
[17:15] <ibanezmatt13> yep
[17:16] <nick_> eroomde: what kind of a uni doesn't have a pub over the road from the physics department?
[17:16] <Reb-SM3ULC> nick_: :D
[17:17] <Reb-SM3ULC> arko: with multiple input one could play some antenna-arrays :)
[17:18] <_charlie> http://picpaste.com/pics/tempvsalt2-fcVuE4WI.1433265499.png hmm
[17:18] <_charlie> lets see what matlab does...
[17:20] <eroomde> that's about right
[17:20] <eroomde> swap axis
[17:20] <eroomde> don't use 4000 pixel wide blobs for markers
[17:20] <_charlie> :P
[17:20] <eroomde> axes*
[17:20] <eroomde> shame the sensor cuts out at -50
[17:20] <_charlie> yeah
[17:21] <eroomde> looks like it go pretty chilly
[17:21] <_charlie> well that was really the ADC resolution
[17:21] <_charlie> next time will add an offset
[17:21] <_charlie> i think the sensor has 0.5K res down to -70
[17:22] <eroomde> oh well. next time, like you say
[17:22] <_charlie> yeah
[17:22] Action: Reb-SM3ULC enjoys another battle with gnuplot.
[17:22] <_charlie> wanted to launch it when I was at home, so was a quick put together event
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[17:32] <Lunar_Lander> hello
[17:33] <ibanezmatt13> does anybody know about uploading and viewing jpeg panoramas online after they've already been stitched?
[17:38] <_charlie> no sorry :(
[17:38] <ibanezmatt13> :/
[17:38] <_charlie> so heres what matlab threw at me http://picpaste.com/pics/altvstemp-1a7ZHMkx.1433266720.jpg
[17:40] <eroomde> http://lasp.colorado.edu/home/wp-content/uploads/2011/12/D3.jpg
[17:40] <eroomde> that looks about right
[17:40] <eroomde> like the first section of that
[17:42] <_charlie> neat
[17:42] <Vaizki> ibanezmatt13: if it's already stitched, then it's just one jpeg, right?
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[17:42] <Vaizki> oh well
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[17:44] <_charlie> prepared some balloons at home too, should be ready to launch when i get the tracker pcbs made
[17:44] <eroomde> currently dumping about 500g/s of hydrogen into the atmosphere - it's a shame we can't collect it as that'd do about 1kg-payload habs per second
[17:44] <_charlie> stripped of Aluminium
[17:44] <_charlie> lol true
[17:44] <eroomde> about 2x 1kg-payload habs per second*
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[17:46] <Vaizki> like my friend who was trying to photograph navy live fire excercises.. and said that the rounds that they were firing at 2/second cost about the same as his camera each :)
[17:46] <eroomde> well hydrogen is fairly cheap
[17:47] <eroomde> it's renting all the pallets of bottles that costs us more than the hydrogen inside the bottles
[17:47] <_charlie> yeah
[17:47] <_charlie> maybe start some electrolisis of water? XD
[17:49] <michal_f> what's the green and blue circle around balloon on a tracker ?
[17:49] <Vaizki> radio horizon marks
[17:49] <Vaizki> the outer circle is theoretically the maximum distance you could hear it with line of sight (at ground level)
[17:50] <_charlie> bbl dinner closes soon
[17:50] <michal_f> due to earth radius?
[17:50] <Vaizki> the inner one is hmm.. was it 10 degrees above horizon?
[17:50] <Vaizki> michal_f: yes
[17:50] <michal_f> thanks
[17:50] Action: SpacenearUS is going for a nap.
[17:50] <Vaizki> can't remember the inner circle spec
[17:50] Action: SpacenearUS is back!
[17:50] <Vaizki> have to check the tracker page code
[17:51] <lz1dev> green circle is 5 degrees
[17:52] <Vaizki> var el = 5.0; // elevation above horizon
[17:52] <Vaizki> damn
[17:52] <Vaizki> you just beat me
[17:53] <lz1dev> didn't have to look at the code ;)
[17:53] <Vaizki> well I haven't seen it documented anywhere so went to the source
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[17:54] <lz1dev> maybe one day there will be quick guide to the tracker
[17:55] <Vaizki> or maybe a tooltip on the radius label?
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[18:41] <michal_f> is it possible for eaglePCB to design the board without having a schematic ?
[18:41] <michal_f> I'd like to draw paths by hand
[18:41] <adamgreig> don't do it
[18:41] <adamgreig> even it it were possible (and yes, it is) it's a poor idea that you will come to regret
[18:42] <adamgreig> you may draw all the paths by hand you like
[18:42] <adamgreig> the schematic doesn't autoroute it
[18:42] <adamgreig> it just lets you know what needs to be connected to what
[18:44] <michal_f> I just need to solder a bunch of wires to a 2x13 header - so I can get away without a schematic
[18:44] <michal_f> I need a PCB so it's more convinient
[18:51] Nick change: fl_0|afk -> fl_0
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[19:19] <TT7> hello everybody, has anyone any idea how to find out the URL of a server from which a website takes data? what I mean is FlightRadar24 for example. I came across a url which when accessed returns information about current flights. What I am looking for is the URL that accesses playback data.
[19:23] <Reb-SM3ULC> wireshark?
[19:24] <Vaizki> or use chrome and put it in developer mode
[19:24] <Reb-SM3ULC> right
[19:24] <Vaizki> will show you all HTTP requests, content, latencies etc
[19:26] <TT7> thx, I'll try that. So far I tried viewing source code in firefox, but nothing interesting there
[19:29] <TT7> I've written a code in python that downloads data from FlightRadar24 and creates a kml file with an animation of the air traffic. At this point it works with current data only, so I'd like to expand it to download and parse historical data as well.
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[19:34] <qyx_> I suppose that you will be banned sooner or later if it is not official public API
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[19:43] <SpacenearUS> New vehicle on the map: 03CALLSIGN123_chase - 12http://tracker.habhub.org/#!qm=All&q=CALLSIGN123_chase
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[19:47] <SpeedEvil> http://forum.nasaspaceflight.com/index.php?topic=37727.msg0#new - highest altitude gopro?
[19:47] <SpeedEvil> (I know there are some on ISS)
[19:47] <SpeedEvil> I wouldn't be able to resist the temptation to copy the SD
[19:51] <_charlie> I wouldnt be able to resist the urge to just stick the whole thing in the garden as a monument :P
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[19:53] <SpeedEvil> Well - that too
[19:53] <SpeedEvil> :)
[19:54] <_charlie> :)
[19:55] <_charlie> Is there a risk that latex balloons can become floaters
[19:56] Nick change: Guest41565 -> nigelvh
[19:56] <_charlie> Say I attach a 10g payload to a 3kg balloon and fill it so it has ascent rate of 5m/s, it could float?
[19:56] <craag> _charlie: Yes, when the ascent rate is < 2 m/s
[19:56] <_charlie> ah ok
[19:57] <_charlie> 10g on a 3kg would get pretty high with an ascent rate of 3m/s... hmmm
[19:57] <craag> With that combination it might even happen around 3 or 4.
[19:57] <_charlie> ok
[19:58] <craag> The slower (ie less free lift), the more the chance of float, but equally the less headroom if it gets caught in weather or something.
[19:58] <craag> It's a game :)
[19:58] <_charlie> yeah, makes sense
[19:58] <_charlie> true true :)
[19:59] <daveake> It's doubtful that a 3000g will actually get any higher than a 1600 with that payload weight
[20:00] <SpeedEvil> It floats if the internal pressure rises high enough to make the gas denser enough to have 0 bouyancy
[20:01] <SpeedEvil> This can either be with the balloon still in the elastic range - if you've very much underfilled it - or when it's hitting its elastic limit.
[20:02] <craag> There's other techniques, like using a pinhole to let out gas as the internal pressure increases.
[20:02] <SpeedEvil> Calculation is annoying
[20:02] <SpeedEvil> and that's prone to having the still-inflated balloon come down
[20:02] <craag> ALthough that will quickly remove any headroom.
[20:03] <_charlie> hmm
[20:03] <craag> And hence anything can bring it slowly down as SpeedEvil says
[20:04] <Laurenceb> <SpeedEvil> It floats if the internal pressure rises high enough to make the gas denser enough to have 0 bouyancy
[20:04] <Laurenceb> not true, thats a common misconception
[20:04] <Laurenceb> think about this - a vacuum canister would have a float altitude
[20:04] <SpeedEvil> yes - I'm simplifying
[20:05] <SpeedEvil> 'gas denser enough to have 0 net bouyancy over the whole system'
[20:05] <Laurenceb> its when the air density == the balloon density
[20:05] <SpeedEvil> yeah
[20:05] <SpeedEvil> I was assuming he wasn't meaning a vacuum latex balloon :P)
[20:06] <_charlie> well _actually_ .... ;) :D
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[20:17] <_charlie> you guys seen ElectroBOOM? https://www.youtube.com/watch?v=L5E4NiP4hpM
[20:17] <Vaizki> yes
[20:18] <_charlie> i like his moustache video
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[20:28] <qyx_> regarding this thing
[20:28] <qyx_> https://i.imgur.com/F5iM0RW.jpg
[20:28] <qyx_> it seems to be this one or similar
[20:28] <qyx_> http://www.newark.com/amphenol-aerospace/2m801-007-26m6-4pa/circular-connector-plug-6-4-4/dp/65W0606
[20:28] <arko> what on earth
[20:28] <qyx_> at least part of it
[20:31] <_charlie> what is it part of
[20:31] <_charlie> looks heavy :P
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[20:32] <qyx_> that spacex fairing found on a beach
[20:32] <_charlie> oh right
[20:32] <qyx_> there are some photos in the link SpeedEvil posted recently
[20:35] <arko> looks like a CF-honeycomb-CF sandwich
[20:36] <arko> So i bet it's relatively light, but im betting water has gotten in it at this point
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[21:14] <SpacenearUS> New vehicle on the map: 03PI_SKY_TEST - 12http://tracker.habhub.org/#!qm=All&q=PI_SKY_TEST
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[21:34] Nick change: fl_0 -> fl_0|afk
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[21:38] <Laurenceb> lol i was on TV
[21:38] <Laurenceb> in the background randomly walking past BBC news crew, looking bored :P
[21:39] <Ian_> Were the news crew covering the punch up?
[21:40] <Laurenceb> no just randomly filming some court case
[21:41] <Laurenceb> i always wondered why people always look so bored in the background of news reports
[21:42] <Laurenceb> now i know
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[00:00] --- Wed Jun 3 2015