highaltitude.log.20100103

[00:00] <jcoxon> http://web.me.com/dbowen1/Spirit_of_Knoxville_Published_Information/SNOX_DOCS_Blog/Entries/2009/4/27_SNOX_IV_Telemetry.html
[00:05] trialex (n=103302A2@60-240-55-188.tpgi.com.au) joined #highaltitude.
[00:23] <jcoxon> Randomskk, this is the ultimate resource
[00:25] <Randomskk> aww, they got so close
[00:26] <jcoxon> yeah
[00:26] <jcoxon> so need to make that data useful in some way
[00:26] <jcoxon> though me being stupid i can't work out their time format
[00:27] <jcoxon> e.g. 10351
[00:28] <SpeedEvil> seconds since midnight?
[00:28] Action: SpeedEvil ignores retarded filesite.
[00:29] <Randomskk> scribd is a bit of a pain
[00:29] <jcoxon> http://github.com/jamescoxon/Atlantic-Halo/blob/master/data1.csv
[00:29] <jcoxon> hence why i've uploaded it again
[00:29] <jcoxon> :-p
[00:30] <SpeedEvil> the field at the end looks suspiciouslyt like seconds since midnight jan 1 1970
[00:30] <Randomskk> it does rather
[00:31] <jcoxon> i just used: http://www.onlineconversion.com/unix_time.htm
[00:31] <jcoxon> and it fits
[00:31] <SpeedEvil> :)
[00:31] <jcoxon> (took me a second to find the launch data :-p)
[00:33] <Randomskk> easy way to recognise unix timestamps is that 123456789 happened recently
[00:35] <jcoxon> so i reckon the plan is to first parse all that data nicely
[00:35] <jcoxon> and work out what really happened during the flight
[00:36] <Randomskk> very spooky when I'm watching 2010 and they're trying to reactive HAL to get the mission data from when Discovery went offline :P
[00:36] <jcoxon> hehe
[00:36] <Randomskk> we know what the fields are, I take it
[00:37] <Randomskk> the txt download from scribd is a load of crap
[00:38] <Randomskk> they appear to have put each csv field as one long string
[00:38] <Randomskk> e.g. 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153 12153
[00:38] <jcoxon> yeah i downloaded the xls and made a csv and stuck it on the github
[00:38] <Randomskk> yup, got your csv
[00:39] <jcoxon> the big question is whats useful data
[00:45] sbasuita (n=sbasuita@unaffiliated/drebellion) left irc: Read error: 110 (Connection timed out)
[01:13] <jcoxon> night all
[01:13] jcoxon (n=jcoxon@host86-154-32-155.range86-154.btcentralplus.com) left irc: "Leaving"
[01:40] <SpeedEvil> jc: http://imgur.com/gallery/TKoOj
[01:40] <SpeedEvil> oh
[01:58] ms7821 (n=Mark@flat.ms) left irc: Nick collision from services.
[01:58] ms7821 (n=Mark@flat.ms) joined #highaltitude.
[02:27] natrium42 (n=natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) joined #highaltitude.
[02:47] trialex (n=103302A2@60-240-55-188.tpgi.com.au) left irc: Read error: 54 (Connection reset by peer)
[03:57] ms7821 (n=Mark@flat.ms) left irc: Read error: 60 (Operation timed out)
[03:58] ms7821 (n=Mark@flat.ms) joined #highaltitude.
[05:17] natrium42 (n=natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) left irc: "Leaving"
[05:20] natrium42 (n=alexei@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) joined #highaltitude.
[06:38] icez (n=icez@unaffiliated/icez) left irc: Read error: 60 (Operation timed out)
[06:54] icez (n=icez@unaffiliated/icez) joined #highaltitude.
[07:47] Simon-MPFH (n=simon@phantom.mpfh.co.uk) joined #highaltitude.
[07:50] natrium42 (n=alexei@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) left irc: "My other car is a cdr."
[08:23] jcoxon (n=jcoxon@host86-154-32-155.range86-154.btcentralplus.com) joined #highaltitude.
[08:32] <jcoxon> morning
[08:59] <icez> morning
[09:10] trialex (n=103302A2@60-240-55-188.tpgi.com.au) joined #highaltitude.
[09:13] <jcoxon> morning icez
[09:13] <icez> happy new year btw
[09:20] <jcoxon> thanks - and you
[09:28] icez (n=icez@unaffiliated/icez) left irc: Remote closed the connection
[10:15] trialex (n=103302A2@60-240-55-188.tpgi.com.au) left irc: Remote closed the connection
[10:34] <jcoxon> finally - worked out what the time format is
[10:34] <jcoxon> yay
[11:16] jcoxon (n=jcoxon@host86-154-32-155.range86-154.btcentralplus.com) left irc: "Leaving"
[11:25] RobertB (n=robert@p579727A2.dip.t-dialin.net) left irc: Remote closed the connection
[11:29] Laurenceb (n=laurence@host86-140-198-16.range86-140.btcentralplus.com) joined #highaltitude.
[11:59] <Laurenceb> nice http://www.sparkfun.com/commerce/product_info.php?products_id=9570
[11:59] <Laurenceb> a digital thermopile
[12:07] <Laurenceb> that site gets better all the time
[12:11] <russss> it's a good site.
[12:11] <russss> I need to work out what I want to buy.
[12:14] <Laurenceb> I was thinking of using a thermopile for reflow oven control
[12:15] <russss> hmm interesting
[12:15] <Laurenceb> but its probably best to stick a thermocouple in a via
[12:15] <russss> probably overkill, however. You'd be ok with a good type k thermocouple on or near the board in question
[12:15] <Laurenceb> use toaster element above and below
[12:16] <Laurenceb> then a wire rack thing from a grill to support the pcb
[12:16] <Laurenceb> just need a relay to turn the elements on/off
[12:16] <russss> yeah. Apparently toaster ovens are the way to go.
[12:17] <russss> was it sparkfun who said that they have a proper reflow oven but hotplates/toaster ovens still work better for them?
[12:17] <Laurenceb> people are using those odd american things
[12:17] <Laurenceb> yes IIRC
[12:17] <Laurenceb> toaster ovens
[12:17] <Laurenceb> whatever they are
[12:18] <Laurenceb> http://www.virtualvillage.co.uk/40a-ssr-solid-state-relay-for-ac-devices-003602-009.html perfect
[12:18] <russss> http://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=59
[12:18] <russss> beefy.
[12:19] <russss> you could probably find a standard relay cheaper though
[12:20] <Laurenceb> yeah but not 3V operation
[12:20] <russss> true
[12:20] <Laurenceb> I've heard bad things about hot plate
[12:20] <Laurenceb> its very uncontrolled
[12:21] <russss> sparkfun swear by hotplate for single-layer work
[12:21] <russss> (bottom of that page I link)
[12:21] <Laurenceb> if you build your own toaster system you could do proper temerature profiles
[12:22] <Laurenceb> I'm thinking basically a horizontal toaster
[12:22] <Laurenceb> with the elements about 10mm apart
[12:22] N900evil (n=Speedevi@tor/regular/SpeedEvil) joined #highaltitude.
[12:23] <Laurenceb> quite a lot of work but you could pick up a cheap stainless steel toaster
[12:23] <Laurenceb> then nice the elements and cut up the case
[12:23] <russss> "Time and time again, either the USB connector would fail to reflow because of the metal housing reflecting the heat, or we would bake the board so long that the USB would reflow but the plastic Camera connector would be completely hosed."
[12:23] <Laurenceb> yeah thats why hotplate works for that board
[12:24] <Laurenceb> as the heat comes from below
[12:24] <russss> I suppose the answer to that is to do the plastic connectors separately.
[12:24] <Laurenceb> I wouldnt trust it with expensive delicate parts
[12:24] <Laurenceb> i.e. stuff that needs a somewhat controlled temperature profile
[12:25] <russss> yeah
[12:27] <Laurenceb> http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=3257489
[12:28] <Laurenceb> if you had a bit more cash, use that as insulation
[12:29] <Laurenceb> or equivalent from somewhere cheaper
[12:29] <Laurenceb> RS is silly prices
[12:32] N900evil (n=Speedevi@tor/regular/SpeedEvil) left irc: Remote closed the connection
[12:33] N900evil (n=Speedevi@tor/regular/SpeedEvil) joined #highaltitude.
[12:35] <Laurenceb> or you could just use fibreglass or similar
[12:37] DanielRichman (n=daniel@unaffiliated/danielrichman) joined #highaltitude.
[12:45] <Laurenceb> looks like sparkfun screwed up with their 9DOF IMU - that avr cant run at 16mhz on 3.3v
[12:46] juxta (i=fourtytw@ppp118-210-196-183.lns20.adl6.internode.on.net) joined #highaltitude.
[12:49] <Laurenceb> max is 13.33MHz