highaltitude.log.20171030

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[00:59] <SpacenearUS> New position from 03HIRF-6 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=HIRF-6
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[01:15] <Laurenceb_> !whereis HIRFW-6
[01:15] <SpacenearUS> 03Laurenceb_: 03HIRFW-6 was over 03Yitong, Siping, Jilin, China 10(43.48107,124.96215) at 0311999 meters about 0333 minutes ago
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[02:08] <Darkside> labjg: ping
[02:08] <Darkside> aorry have missed your pings :-)
[02:08] <Darkside> been away
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[02:43] <labjg> no problemo Darkside
[02:43] <labjg> CASA queries have been answered anyway - managed to get through to them on the phone
[02:43] <labjg> much better situation than when i was back in the UK!
[02:44] <labjg> they really only need a few days' notice for a light balloon launch.. but appreciate more of course
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[03:02] <Darkside> labjg: cool, yeah we have to give 72 hr notice to get a NOTAM
[03:03] <Darkside> who did you speaknto at CASA? we deal with Ian Hogben
[03:04] <Darkside> are you guys going to use the 70cm cubesat ground station at stromlo for tracking?
[03:07] <labjg> Nav Naidu at the Sydney Regional office
[03:07] <labjg> And yep
[03:08] <Darkside> ok cool
[03:08] <Darkside> i have some code i wrote a while back which will do rotator control based on received telemetry
[03:09] <Darkside> but tbh its probably overkill, and hand-tracking would do it :-)
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[03:13] <labjg> Maybe for future launches :)
[03:14] <Darkside> tbh for RTTY you wont need the gain
[03:14] <labjg> What would you recommend is the best way to get word out to amateurs in the area?
[03:14] <Darkside> your biggest problem is going to be landing in crap locations
[03:14] <Darkside> hrm
[03:14] <Darkside> I can probably pass a message onto the canberra region amateur radio club
[03:15] <Darkside> not sure of their contact details, but i know a few members
[03:16] <Darkside> basically would need launch date/time, TX frequency, payload callsign. The rest should get auto-configured from the Habitat flight document.
[03:18] <Darkside> also launch location / expected flight path would be useful, so people know where to point their beams to start off
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[05:19] <SpacenearUS> New vehicle on the map: 03d_chase - 12https://tracker.habhub.org/#!qm=All&q=d_chase
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[06:20] <SpacenearUS> New position from 03U3B-9 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=U3B-9
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[09:59] <SpacenearUS> New position from 03DL7AD-12 after 0321 hours silence - 12https://tracker.habhub.org/#!qm=All&q=DL7AD-12
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[11:17] <SpacenearUS> New position from 03YPADSONDE after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=YPADSONDE
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[11:36] <SpacenearUS> New position from 03RSIST after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=RSIST
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[12:20] <Laurenceb> !whereis HIRFW-6
[12:20] <SpacenearUS> 03Laurenceb: 03HIRFW-6 was over 03Russia 10(42.48107,130.96215) at 0311999 meters about 036 hours ago
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[12:41] <SpacenearUS> New vehicle on the map: 03hola_chase - 12https://tracker.habhub.org/#!qm=All&q=hola_chase
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[12:45] <SpacenearUS> New vehicle on the map: 03globo_chase - 12https://tracker.habhub.org/#!qm=All&q=globo_chase
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[13:54] <SpacenearUS> New position from 03KG5KNM-11 after 036 days silence - 12https://tracker.habhub.org/#!qm=All&q=KG5KNM-11
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[14:23] <SpacenearUS> New position from 03N7SMI-11 after 0315 hours silence - 12https://tracker.habhub.org/#!qm=All&q=N7SMI-11
[14:29] <N7SMI> Woohoo! N7SMI-11 has gone international. Now in Northern Mexico.
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[14:31] <N7SMI> Does anyone know if there's a way to purge a position entry from the tracker DB? I got a rogue update yesterday placing it half way around the world. It would be nice to get rid of it so the map is accurate.
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[14:42] <Geoff-G8DHE> Probably best to ask in #habhub
[14:43] <Mike-SA6BSS|2> N7SMI: no way to purge current db, I dowenoad the data on my flights and remove the data error and upload to a new map like this: https://www.google.com/maps/d/edit?mid=18h6V7SyEKHbwP2XnmCtAijGay_A&ll=18.590716049821992%2C3.5390625&z=3
[14:43] <Mike-SA6BSS|2> but ask in #habhub channel, I´m not 100% on this
[14:44] <N7SMI> OK. Thanks. I keep my own 'clean' DB and mapping at http://hab.smithplanet.com/ It's not a big deal, but does make the HabHub map a bit odd.
[14:46] <Mike-SA6BSS|2> two of your goals reached, another state and another country :)
[14:46] <N7SMI> Yep! It neat to watch my home radio/computer hearing and decoding my own balloon that's 1200km away!
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[14:48] <Mike-SA6BSS|2> cool :) heard my own balloon from over 5000km last week, very good propogation to the west
[14:48] <Mike-SA6BSS|2> what radio are u using?
[14:48] <Mike-SA6BSS|2> antenna?
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[14:51] <N7SMI> Elecraft K3s with a hexbeam (2 element beam) at 10 meters high.
[14:52] <Mike-SA6BSS|2> ok, thats a nice setup
[14:53] <Mike-SA6BSS|2> mostly using a verticale butternut in the lawn (hf9) and one of the rsp/rsp2
[14:53] <Mike-SA6BSS|2> *butternu
[14:53] <Mike-SA6BSS|2> t
[14:54] <N7SMI> I actually just looked out and realized my beam isn't even pointed the right direction. :-) I've done a bit of ham stuff - https://www.qrz.com/db/n7smi
[14:54] <Mike-SA6BSS|2> im on teamvier, having a break, two hours of the work day left
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[15:57] <SpacenearUS> New position from 03U3S18 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=U3S18
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[16:02] <SpacenearUS> New position from 03CYBRGIRL after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=CYBRGIRL
[16:03] <SpacenearUS> New vehicle on the map: 03WCSHAB - 12https://tracker.habhub.org/#!qm=All&q=WCSHAB
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[16:27] <DL7AD> fsphil: our SSDV floater appeared again which we have launched a month ago.
[16:28] <DL7AD> yesterday poland, today russia
[16:29] <Ian_> :) onwards and . . . onwards!
[16:29] <DL7AD> unfortunately there is an issue with the power supply :(
[16:30] <DL7AD> so no GPS and no pictures
[16:31] <Ian_> Stealth mode then?
[16:31] <DL7AD> almost. you can determine the position by the receivers location
[16:31] <Ian_> I guess that it's putting out some form of signal, if only intermittently?
[16:32] <DL7AD> yes
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[17:44] <PE2BZ> Mike-SA6BSS question about the foil balloons: Did you trust on the automatic closing system of the foil balloon or did you tyrap or tape the fill opening to be safe ?
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[17:56] <N7SMI> PE2BZ: For my flights, I've never trusted them to self-seal and tape them off. The new balloons Mike and I are flying don't self seal, so the valves are sealed with glue and tape. I even put a zip tie at the very bottom of the valve.
[17:57] <PE2BZ> Thanks, what kind of glue ? Just ¨superglue¨ or any special ?
[17:58] <PE2BZ> And did you ever fly 2 foil balloons tied together ?
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[18:03] <N7SMI> Yep, just superglue. A few drops spread out in the valve, then fold it over a few times and tape. My flights have all been 2 balloons. Unfortunately all the recent Qualatex balloons are defective and weak. These new balloons seem to work better.
[18:03] <Mike-SA6BSS|2> I always use super glue eve in the ones (qualatex) that I used to use and in the new balloon that that dont have self sealing
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[18:04] <Mike-SA6BSS|2> never going to fly any more quakatex
[18:05] <Mike-SA6BSS|2> as Jared stated , just a 2 small drops is enough to seal it, fold onece
[18:05] <Mike-SA6BSS|2> *once
[18:07] <PE2BZ> Thanks for input both !
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[18:08] <Mike-SA6BSS|2> np,
[18:09] <PE2BZ> with 2 36 inch what would be the maximum payload weight for floating ? Currently my payload is 55 gram (1 battery and one stepup converter)
[18:10] <Mike-SA6BSS|2> 55gram not goit to float very high maby just a few thousand meters
[18:11] <Mike-SA6BSS|2> there is chart made up, googling....
[18:12] <PE2BZ> That would do for the first time, batteries last about 24 hours. My ¨problem¨ is, when using a solar panel and super cap, the TX does not turn on automatically as soon as the power returns...
[18:12] <N7SMI> Yep, 55 grams would require lots of He to lift, so it's not going to go very high at all before it equalizes and floats (or bursts).
[18:12] <PE2BZ> That´s for the modded / programmed RS41 sonde which requires a button to be pressed
[18:13] <PE2BZ> PCB with foam = 35 gram so I have to add power which has weight...
[18:14] <N7SMI> Our balloons are only about 1/3 full at launch, but our payloads are very light - my current one is 14 grams and Mike's are lighter still.
[18:14] <PE2BZ> And the 14 grams include the wspr antenna :-)
[18:14] <PE2BZ> But mine is rtty and / or CW and 434 MHz
[18:15] <PE2BZ> APRS on 432.500 seems of no use. The last flight was only received on APRS near Rotterdam and had no coverage between Utrecht and the middle of German.
[18:16] <PE2BZ> Do you fly bare PCB´s as tracker ?
[18:16] <N7SMI> You could try tethering multiple balloons, but each is introducing a possible failure point.
[18:16] <PE2BZ> Like my first flight ;-)
[18:17] <PE2BZ> 2 36 inch latex party balloons. One filled to 60 cm and one to 45 cm. The parachute never got unfolded, the 45 cm balloon gave it a nice descend rate of 1.4 m/s
[18:17] <N7SMI> Yes, mine are bare PCBs. So long as I don't launch through clouds, it's OK. 9000 meters is above the clouds, except big storms.
[18:18] <PE2BZ> My PCB is 20 grams :-)
[18:18] <Mike-SA6BSS|2> the 10m long wspr antenna is justa ablout 1.5gram
[18:18] <Mike-SA6BSS|2> here is the chart , might get you an idea https://ukhas.org.uk/projects:microballoons:data?s[]=pico&s[]=float
[18:19] <PE2BZ> In the PI6WL activity weekend I tried to get a Hwoyee up on a rope to 200 meter. The rope only was 200 gram.... So that was a no go...
[18:20] <Mike-SA6BSS|2> hehe, ok
[18:22] <PE2BZ> Mike that´s a lot of ¨no float¨ ....
[18:22] <PE2BZ> So it´s time for our next experiment :-)
[18:24] <PE2BZ> +1 for the bare PCB
[18:25] <Mike-SA6BSS|2> yes, a bare costom made pcb is the way to go
[18:25] Nick change: Mike-SA6BSS|2 -> Mike-SA6BSS
[18:29] <Mike-SA6BSS> tested the new aprs /rtty tracker today out in the sun, need a bit more fine tuning https://imgur.com/a/D5tvq
[18:30] <Mike-SA6BSS> Pumkins just ready and put outside https://imgur.com/a/D5tvq
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[18:33] <PE2BZ> What is your source for the solar panels ?
[18:33] <Mike-SA6BSS> just standard aliexpress 38x19 panels
[18:36] <Mike-SA6BSS> https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20171030103557&SearchText=solar+cells+100+pcs+39
[18:36] <Mike-SA6BSS> 39x19 that is
[18:36] <PE2BZ> What does one piece weigh ?
[18:37] <Mike-SA6BSS> 0,3-0,34
[18:39] <N7SMI> I'm using larger 52x52mm cells, not only 2 of them with the supercap. About 1g each.
[18:39] <PE2BZ> Any link by any chance ?
[18:39] <N7SMI> Got mine on Amazon - http://a.co/gWRqR8D There are loads on eBay too.
[18:41] <PE2BZ> I am going to start calculating... My current draw is about 140 mA. What´s yours /
[18:43] <Mike-SA6BSS> mine wspr takes max 57mA , by lowering the clock on the atmega to 4Mhz got down to 52mA
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[18:48] <N7SMI> I'm ~35mA during GPS acquisition and ~45mA during transmit. Otherwise a couple mA during standby and 5 nA during sleep.
[18:50] <N7SMI> Tuning the number of solar cells to the supercap and current demands is important, but takes a lot of trial and error. I'm running 4Mhz also.
[18:55] <PE2BZ> I have ordered a solar stepup from 0.25 - 5 volt to 3.3 or 5 volt which has a ¨power good output¨ that should give me the possibility to start the sonde again when the power comes back
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[19:06] <SpacenearUS> New vehicle on the map: 03F1TKE-12 - 12https://tracker.habhub.org/#!qm=All&q=F1TKE-12
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[19:22] <fsphil> moar spacex, https://www.youtube.com/watch?v=RUjH14vhLxA
[19:23] <fsphil> well it was until I mentioned it...
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[19:24] <russss> seems back nwo
[19:24] <russss> now*
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[19:30] <bertrik> cool times to be able to see these launches live on youtube :)
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[19:37] <fsphil> second stage engine seemed to pulse a bit while starting
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[19:43] <fsphil> smokin'
[19:44] <SpeedEvil> I would really like video right now to see if that's going out
[19:44] <SpeedEvil> (droneship landing worked, but there was an unusual amount of fire.
[19:46] <fsphil> yeah more than usual
[19:46] <russss> the last one had quite a bit of fire as well
[19:47] <fsphil> they have a fire extinguisher thing on board
[19:47] <SpeedEvil> the last on the fire was quite a way down
[19:47] <russss> my new theory is that SpaceX's proposed 4500-satellite broadband constellation exists purely to get reliable droneship video
[19:48] <SpeedEvil> :)
[19:48] <fsphil> lol
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[19:49] <SpeedEvil> http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=43901.0;attach=1457196;image - Fire nearly up to the leg attach point, don't think I've seen that before
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[19:53] <bertrik> quite a cliffhanger
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[20:00] <russss> hey it's back
[20:00] <russss> only the droneship on fire now
[20:01] <russss> https://usercontent.irccloud-cdn.com/file/lByh5CAq/image.png
[20:01] <SpeedEvil> Second stage just caught fire
[20:01] <SpeedEvil> I think that was planned though.
[20:01] <russss> it appears to be burning at the correct end
[20:25] <AndyEsser> anyone used Catia by Dassault?
[20:27] <SpacenearUS> New position from 03U3B-9 after 0314 hours silence - 12https://tracker.habhub.org/#!qm=All&q=U3B-9
[20:34] <russss> AndyEsser: I use fusion360 these days. Can't argue with the price.
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[20:57] <SpacenearUS> New vehicle on the map: 03DL8DBN_chase - 12https://tracker.habhub.org/#!qm=All&q=DL8DBN_chase
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[22:12] <Norm_> Stupid question: does the Pi In The Sky store the photos it takes? If so, how do I find them?
[22:13] <Reb-SM0ULC> on the sd-card
[22:14] <Reb-SM0ULC> daves guide should show exactly where
[22:14] <Norm_> I cannot see any reference in the PISKY manual
[22:14] <Reb-SM0ULC> or just, "find / | grep .jpg"
[22:15] <fsphil> DL7AD: cool! hopefully it'll start working properly again
[22:15] <Norm_> ah, thanks!
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[23:01] <SpacenearUS> New vehicle on the map: 03F1TKE-13 - 12https://tracker.habhub.org/#!qm=All&q=F1TKE-13
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[23:18] <SpacenearUS> New position from 03YPADSONDE after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=YPADSONDE
[23:27] <DL7AD> fsphil: yeah hopefully our supercap behaves like AO-7's battery sometime
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[23:38] <SpacenearUS> New position from 03RSIST after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=RSIST
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[00:00] --- Tue Oct 31 2017