highaltitude.log.20190801

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[05:29] <SpacenearUS> New vehicle on the map: 03DOSCO-11 - 12https://tracker.habhub.org/#!qm=All&q=DOSCO-11
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[08:39] <SpacenearUS> New vehicle on the map: 03Thanos1 - 12https://tracker.habhub.org/#!qm=All&q=Thanos1
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[08:42] <SpacenearUS> New vehicle on the map: 03UBX - 12https://tracker.habhub.org/#!qm=All&q=UBX
[08:42] <SpacenearUS> New vehicle on the map: 03L80 - 12https://tracker.habhub.org/#!qm=All&q=L80
[08:44] <SpacenearUS> New vehicle on the map: 03PTE - 12https://tracker.habhub.org/#!qm=All&q=PTE
[09:09] <SpacenearUS> New vehicle on the map: 03Thanos2 - 12https://tracker.habhub.org/#!qm=All&q=Thanos2
[09:13] <SpacenearUS> New position from 03U3B-25 after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=U3B-25
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[09:54] <SpacenearUS> New vehicle on the map: 03BakTrak1 - 12https://tracker.habhub.org/#!qm=All&q=BakTrak1
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[11:59] <SpacenearUS> New vehicle on the map: 034FSKTEST - 12https://tracker.habhub.org/#!qm=All&q=4FSKTEST
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[12:27] <SpacenearUS> New position from 03KD0HIP-7 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=KD0HIP-7
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[13:15] <SpacenearUS> New position from 03KK6UUQ-7 after 0313 hours silence - 12https://tracker.habhub.org/#!qm=All&q=KK6UUQ-7
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[14:26] <SpacenearUS> New position from 03STELLA22 after 0314 hours silence - 12https://tracker.habhub.org/#!qm=All&q=STELLA22
[14:37] <SpacenearUS> New vehicle on the map: 03K4CMS-1 - 12https://tracker.habhub.org/#!qm=All&q=K4CMS-1
[14:42] <SpacenearUS> New vehicle on the map: 03N9QIE-10 - 12https://tracker.habhub.org/#!qm=All&q=N9QIE-10
[15:01] <SpacenearUS> New vehicle on the map: 03OAQ-PIS - 12https://tracker.habhub.org/#!qm=All&q=OAQ-PIS
[15:13] <SpacenearUS> New vehicle on the map: 03VORTEX1 - 12https://tracker.habhub.org/#!qm=All&q=VORTEX1
[15:26] <happysat> Update for Meteor M-N2-2 LRPT-Decoder - http://happysat.nl/LRPT_Decoder_v42.rar
[15:42] <SpacenearUS> New vehicle on the map: 03SH06 - 12https://tracker.habhub.org/#!qm=All&q=SH06
[15:42] <SpacenearUS> New position from 03XX after 0310 days silence - 12https://tracker.habhub.org/#!qm=All&q=XX
[15:54] hyde00001 (~hyde00001@cpc69050-oxfd25-2-0-cust745.4-3.cable.virginm.net) joined #highaltitude.
[15:57] <hyde00001> So I'm currently running a PITS simulation using gps data from a previous flight. I've enabled landing prediction, but the XX marks the spot doesn't seem to want to separate from the current flight position (yes I'm post-burst). Is this normal for a simulation or am I doing something wrong (wondering if I've got appropriate parachute settings and payload weight units in PITS prefs...)? Thoughts fro
[15:57] <hyde00001> m any XX marks the spot users??
[15:58] <daveake> Never seen any issue with it
[15:58] <daveake> btw con Saturday there's a real flight with XX included to please don't upload then :)
[15:59] <hyde00001> saw the announcement - won't test on Saturday!
[15:59] <hyde00001> But I should expect the XX to head towards the known landing spot and away from the "current" balloon location - right?
[15:59] <daveake> I've tested loads of times with a played-back NMEA file and not seen any issues with the landing prediction
[16:01] <daveake> Suggest you comment out the XX bit, and you'll then have the landing position plus useful stuff like calculated CDA and time-till-landing in the regular telemetry ... see if those look sensible
[16:02] <daveake> XX should veer away from current position during ascent, not just descent
[16:02] <hyde00001> In pits prefs I assume the pertinent settings are cd_area and payload_weight. On this flight I had a 24" Spherachute so I used 0.292 and a 300g payload so I used 0.3 for payload weight. Do these sound about right?
[16:02] <SIbot> In real units: 24 in = 0.6 m
[16:02] <daveake> Well, if you're expecting 5m/s landing, that's what the default figures give you
[16:03] <hyde00001> err comment out; prediction_id=XX was that what you meant?
[16:03] <daveake> yes
[16:03] <hyde00001> BTW thanks for pole suggestion. Ordered...
[16:04] <daveake> Once it starts descending then it replaces CDA with its own calculation
[16:04] <hyde00001> kg for payload??
[16:04] <daveake> yes
[16:04] <hyde00001> mmm odd
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[16:05] <hyde00001> i know exactly where this flight lands and XX isn't helping!
[16:05] <hyde00001> I'll run it again with the XX commented out
[16:06] <daveake> Is the altitude correct?
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[16:07] <hyde00001> Target_Altitude I set to 30000 (though I knew flight popped around 31km...)
[16:07] <daveake> Aaaah
[16:07] <daveake> No .... that's the landing altitude
[16:07] <hyde00001> lol
[16:07] <daveake> I think I see the issue :)
[16:08] <hyde00001> #Not sure what this is...
[16:08] <hyde00001> Target_Altitude=30000
[16:08] <daveake> Set to 100 or something
[16:08] <SpacenearUS> New vehicle on the map: 03MJSBASE_chase - 12https://tracker.habhub.org/#!qm=All&q=MJSBASE_chase
[16:08] <hyde00001> Interestingly in my pisky.txt I have the following line
[16:08] <hyde00001> So what is Landing_Altitude for??
[16:09] <hyde00001> (thinks he may have RTFM...)
[16:09] <daveake> I think I do too
[16:10] <daveake> There is a difference and it's to do with my return-to-home code (which no, isn't in the standard release)
[16:11] <hyde00001> OK so comment out Landing_Altitude, but set Target_altitude to something credible...
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[16:14] <daveake> Yeah you need Target_Altitude, cd_area, payload_weight, and landing_prediction=Y. There is no landing_altitude setting.
[16:15] <daveake> Probably should have called it landing_altitude, but didn't
[16:17] <SpacenearUS> New position from 03KD2KDD-15 after 0314 days silence - 12https://tracker.habhub.org/#!qm=All&q=KD2KDD-15
[16:18] <hyde00001> Helpful as ever - always new ways that idiots can break you excellent codebase
[16:19] <SpacenearUS> New position from 03KB6CAG-3 after 0319 hours silence - 12https://tracker.habhub.org/#!qm=All&q=KB6CAG-3
[16:20] <hyde00001> looks better already - XX has moved away from tracker location and I'm only 2.2km up...
[16:24] <daveake> Well, tbh, I don't think I ever documented the landing prediction settings
[16:32] <hyde00001> BTW, given habitat lag have you considered making public a simple way for others to get "their own map" like you have with HABlink???
[16:33] <hyde00001> ...which is why I'm trying to get XX going...
[16:35] <daveake> No ... I think habhub is back to normal now, and my map is missing a few things like path and prediction. Doing what you suggest would be biting off more than I fancy chewing!
[16:36] <SpacenearUS> New vehicle on the map: 03KD0AWK-14 - 12https://tracker.habhub.org/#!qm=All&q=KD0AWK-14
[16:36] <daveake> You can use my Android app which has a map and will show you the landing position even if it's embedded in the regular sentence
[16:37] <hyde00001> please please please make an iPhone version... I'll pay
[16:37] <hyde00001> suspect hardware interface might be trickier...
[16:40] <hyde00001> Hope you are right re the map lag. Let's see on Saturday, likely plenty of uploaders and at a time when the RS_* listeners might be active
[16:41] <daveake> Well regular bluetooth isn't available. LE bluetooth is, and is a PITA, but I'm using that for a customer project at the mo, targetting iPad+Android, so once that's done I'll be in a better position to port to iOS.
[16:42] <daveake> USB serial should be OK, I believe
[16:44] <hyde00001> rubs hands with glee that you are even considering it...
[16:46] <hyde00001> FWIW, simulation flight half way up and XX within about 5km of final landing. So looks sorted! Wonder if we could register (with whom??) more "X marks the spot" payload names eg XX_Whatever would get the same treatment
[16:48] <daveake> "Please can we have multiple XX payloads e.g. XX1, XX2 ..." has been asked a couple of times
[16:50] <daveake> Or, have some special payload fields "pred_lat" and "pred_lon" for example, which cause an X to appear for that payload
[16:53] <hyde00001> Oooh - I like the last one - more efficient for the payload (though higher server load...)
[16:55] <daveake> My Android app does it. It just looks for a pair of fields that are similar in value to the lat/lon fields :)
[16:55] <hyde00001> makes note not to add sensor values in a similar format...
[16:57] <hyde00001> makes another note to bring son along on next chase with his phone...
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[17:08] <hyde00001> FWIW, XX has worked brilliantly on this sim run. Predicting within a couple of km with 20km still left to fall.
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[17:39] <SpacenearUS> New position from 03DOSCO-11 after 0312 hours silence - 12https://tracker.habhub.org/#!qm=All&q=DOSCO-11
[17:42] <SpacenearUS> New position from 03ICT3 after 0317 hours silence - 12https://tracker.habhub.org/#!qm=All&q=ICT3
[17:45] <SpacenearUS> New vehicle on the map: 03DC2EH-12 - 12https://tracker.habhub.org/#!qm=All&q=DC2EH-12
[17:47] <SpacenearUS> New vehicle on the map: 03DO3OCM-11 - 12https://tracker.habhub.org/#!qm=All&q=DO3OCM-11
[17:51] <SpacenearUS> New vehicle on the map: 03KD0AWK-12 - 12https://tracker.habhub.org/#!qm=All&q=KD0AWK-12
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[19:02] <SpacenearUS> New vehicle on the map: 03KD0AWK-4 - 12https://tracker.habhub.org/#!qm=All&q=KD0AWK-4
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[21:02] <rd55a> 4f1f2f09e6aca2587347fb1aa95cfbc5
[21:02] <rd55a> oops wrong channel
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[22:24] <SpacenearUS> New position from 03BakTrak1 after 038 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BakTrak1
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[00:00] --- Fri Aug 2 2019