highaltitude.log.20200320

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[00:56] <SpacenearUS> New vehicle on the map: 03R4030272_chase - 12https://tracker.habhub.org/#!qm=All&q=R4030272_chase
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[03:11] <SpacenearUS> New vehicle on the map: 0319GSN002_chase - 12https://tracker.habhub.org/#!qm=All&q=19GSN002_chase
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[05:26] <SpacenearUS> New position from 03icspace19 after 0313 hours silence - 12https://tracker.habhub.org/#!qm=All&q=icspace19
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[07:08] <SpacenearUS> New vehicle on the map: 03DL2623-4_chase - 12https://tracker.habhub.org/#!qm=All&q=DL2623-4_chase
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[09:15] <SpacenearUS> New position from 03PS-75 after 0317 hours silence - 12https://tracker.habhub.org/#!qm=All&q=PS-75
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[11:19] <SpacenearUS> New vehicle on the map: 03SQ3REB_chase - 12https://tracker.habhub.org/#!qm=All&q=SQ3REB_chase
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[11:56] <SpacenearUS> New vehicle on the map: 03Regantest_chase - 12https://tracker.habhub.org/#!qm=All&q=Regantest_chase
[11:56] <SpacenearUS> New position from 03PEPER-2 after 0312 hours silence - 12https://tracker.habhub.org/#!qm=All&q=PEPER-2
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[12:21] <bertrik> nice to see ispace19 online again
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[12:28] <MedadR> icspace19 was launched by the Imperial College Space Society and is the longest flight so far. It is day 4 and over Bulgaria. It has a LoRa radio and uses the LoRaWan protocol. It is connected to The Things Network
[12:29] <Darkside> we really need the damn PR approved...
[12:30] <MedadR> What does PR mean?
[12:30] <Darkside> the one that removes TTN stations from the map after an hour
[12:30] <Darkside> pull request
[12:30] <MedadR> pull request?
[12:30] <MedadR> thanks
[12:30] <Darkside> changes to the habhub tracker code
[12:30] <Darkside> but rgp has gone awol
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[12:31] <rgp> sup
[12:31] <MedadR> not to worry. Our balloon is over territory with much less denser TTN coverage
[12:31] <Darkside> hey!
[12:31] <Darkside> rgp: i have a PR sitting around which ages out TTN gateways after an hour
[12:31] <Darkside> and then i have another branch off on the side somewhere which allows switching on/off of range rings
[12:32] <rgp> https://github.com/rossengeorgiev/habitat-mobile-tracker/pull/101 this?
[12:32] <Darkside> yep
[12:32] <rgp> december lol
[12:32] <Darkside> and after that i have another one
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[12:35] <Darkside> hmm might need to rebase
[12:35] <rgp> its deployed
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[12:36] <Darkside> https://github.com/rossengeorgiev/habitat-mobile-tracker/pull/102
[12:36] <Darkside> ;p
[12:36] <Darkside> that adds another setting to enable switching off horizon rings
[12:36] <Darkside> which can be useful if theres a lot of balloons on the map
[12:37] <Darkside> (like... on sondehub)
[12:37] <Darkside> oh
[12:37] <Darkside> i think that branch also adds a 12 hour option to the age dropdown
[12:38] <Darkside> yeah it does
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[12:51] <rgp> i see a whole bunch of other chances in that PR
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[12:55] <Darkside> rgp: hmm lemme check
[12:56] <Darkside> there are a few commits that shouldnt be there
[12:56] <Darkside> that are from the other PR
[12:56] <Darkside> https://github.com/rossengeorgiev/habitat-mobile-tracker/pull/102/files
[12:56] <Darkside> but the actual changes are just the horizon rings and the 12 hour age
[12:57] <rgp> see comments
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[12:57] <bertrik> by the way, when I developed the TTN code, I wasn't able to send a *list* of receivers, resulted in a 5xx code IIRC
[12:58] <bertrik> so now it's sending a lot of individual requests, which is probably a much higher load on the server (up to 100x)
[12:58] <rgp> Darkside, that hide/show code does the same thing in 4 different places, that must really be done as a single function
[12:58] <rgp> to keep code nice and tidy
[12:59] <Darkside> it was hard enough to make it work at all
[12:59] <Darkside> trying to figure out how to index properly into the vehicle store in different palces..
[12:59] <Darkside> places*
[12:59] <Darkside> javascrips annoys me a bit
[13:03] <bertrik> MedadR: does it have a solar panel to charge, or is it running on primary batteries alone?
[13:04] <MedadR> It solar powered
[13:04] <MedadR> no battery
[13:04] <MedadR> I am writing an article about it
[13:05] <MedadR> I will post a picture in a minute
[13:07] <MedadR> http://www.union.ic.ac.uk/guilds/icseds/wp-content/uploads/2020/03/20200316_135100.jpg
[13:08] <MedadR> http://www.union.ic.ac.uk/guilds/icseds/wp-content/uploads/2020/03/20200316_135049.jpg
[13:09] <bertrik> nice
[13:09] <MedadR> It uses the CMWX1ZZABZ-078 LoRa radio module, Ublox MAX M8Q and MS5607 pressure temperature sensor
[13:10] <MedadR> bertrik: Once again, thanks for making the bridge. Makes life a lot easier
[13:11] <bertrik> I'm honored to see people finding it useful :)
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[14:57] <SpacenearUS> New position from 03KN4IUD-15 after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=KN4IUD-15
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[15:51] <PE2BZ> MedadR, Nice results !
[15:52] <MedadR> PE2BZ: Thanks
[15:52] <MedadR> ICSPACE19 has gone to sleep for the night
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[15:58] <PE2BZ> single wire GPS and single wire TX antenna, looks to work OK, did you tie the carrying wire to the GPS antenna with a reason ?
[16:04] <MedadR> The reason is, we found that if we rattled the tracker too much while holding it up by the string, the tracker had a tendency for flipping and solar cells tangling with the string
[16:05] <MedadR> The tracker would then be stuck in an odd angle to the horizon, tangled with the string
[16:05] <MedadR> so we looped the string around the GPS antenna and it seems to prevent the tracker from flipping
[16:06] <MedadR> Launch article and more pictures: https://www.union.ic.ac.uk/guilds/icseds/2020/03/launch-of-icspace19/
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[16:09] <PE2BZ> Thank for the info and the URL. Should the Key Stats also mention ICSPACE19 and not 16 ;-)
[16:10] <MedadR> oops
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[16:13] <PE2BZ> I had planned a TTN testflight but with battery, payload weight 80 gram.... Might consider some solar panels too .
[16:13] <SpacenearUS> New position from 03KD2KDD-15 after 038 days silence - 12https://tracker.habhub.org/#!qm=All&q=KD2KDD-15
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[16:21] <bertrik> I hope ispace19 appears again tomorrow, maybe over greece?
[16:22] <PE2BZ> It appears to be always sunny over there ;-)
[16:22] <bertrik> or would it already have reach north africa (with few ttn receivers there I guess)
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[17:34] <SpacenearUS> New vehicle on the map: 03Gatewayservernerderland_chase - 12https://tracker.habhub.org/#!qm=All&q=Gatewayservernerderland_chase
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[18:46] <MedadR> bertrik: This is the predicted flight path:https://www.union.ic.ac.uk/guilds/icseds/wp-content/uploads/2020/03/image.png
[18:47] <MedadR> All the countries there will be using the EU868 LoRa parameters. But we have code in the tracker to switch LoRa params depending on where it is in the world. e.g. for the US915 settings
[18:51] <MedadR> But I discovered a critical error in the firmware that means that it cannot switch LoRa params based on location. Seriously considering how to do firmware updates over the air. There will be bugs in the firmware.
[19:00] <bertrik> I think it will be very tricky to do over-the-air updates
[19:00] <bertrik> especially over LoRa since it has such limited bandwidth
[19:06] <MedadR> I have thought about that. What we need is small patches only a few bytes long
[19:06] <MedadR> but it will be quite complicated.
[19:09] <MedadR> We don't use the LoRa Basics firmware but they say that they can do firmware updates over the air: https://github.com/lorabasics/basicloader
[19:09] <MedadR> need to investigate
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[19:24] <SpacenearUS> New position from 03SA6BSS-10 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=SA6BSS-10
[19:38] <SpacenearUS> New vehicle on the map: 03Regantest_chase - 12https://tracker.habhub.org/#!qm=All&q=Regantest_chase
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[19:59] <Maxell> Firmware OTA update for your HAB. Crazy! :)
[20:00] <SA6BSS-Mike|2> the future of habing :)
[20:01] <MedadR> Firmware update over the air is a possiblity. I think we can put patches up into a completely solar powered flying balloon in the air. This is the future my friends.
[20:03] <SA6BSS-Mike|2> my home made balloon just checked in over Alska atr 11500m :)
[20:03] <Maxell> Nice work, I like the blog post :D
[20:05] <MedadR> SA6BSS-Mike|2: good job. Hope to get into the exclusive club of sending a balloon around the world
[20:06] <MedadR> SA6BSS-Mike|2: How many balloons have you send around the world? and how many laps?
[20:07] <MedadR> This is our first multi day flight. It is a waiting game!
[20:07] <MedadR> Maxell: Thanks!
[20:10] <SpacenearUS> New vehicle on the map: 03KK6SDN-12 - 12https://tracker.habhub.org/#!qm=All&q=KK6SDN-12
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[20:22] <SA6BSS-Mike|2> MedadR: no idea, havent counted, more then 10 anyway
[20:22] <MedadR> nice!!
[20:23] <SA6BSS-Mike|2> only verified 2.5 but the one that flew for +93 days probanly made quite a few
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[20:39] <SpacenearUS> New position from 03BB06 after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=BB06
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[22:08] <SpacenearUS> New vehicle on the map: 0319GSN006_chase - 12https://tracker.habhub.org/#!qm=All&q=19GSN006_chase
[22:35] <SpacenearUS> New vehicle on the map: 0319GSN002_chase - 12https://tracker.habhub.org/#!qm=All&q=19GSN002_chase
[22:39] <SpacenearUS> New vehicle on the map: 0319GSNBALON_chase - 12https://tracker.habhub.org/#!qm=All&q=19GSNBALON_chase
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[23:29] <SpacenearUS> New vehicle on the map: 03pc4l_0320 - 12https://tracker.habhub.org/#!qm=All&q=pc4l_0320
[23:29] <SpacenearUS> New position from 03PEPER-2 after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=PEPER-2
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[00:00] --- Sat Mar 21 2020