{"id":5927,"date":"2020-12-13T22:08:24","date_gmt":"2020-12-13T21:08:24","guid":{"rendered":"http:\/\/www.gloetzner.net\/wordpress\/?p=5927"},"modified":"2020-12-13T22:13:48","modified_gmt":"2020-12-13T21:13:48","slug":"2020-12-13-rs41-from-idar-oberstein-to-scharnhause","status":"publish","type":"post","link":"https:\/\/www.gloetzner.net\/wordpress\/?p=5927","title":{"rendered":"2020-12-13: RS41 from Idar-Oberstein to Scharnhausen"},"content":{"rendered":"\n

The morning probe coming from Idar-Oberstein landed somewhere near Scharnhausen. The telemetry was lost at 9:04h in 471 m height.<\/p>\n

Felix and myself were slowly in deciding to give it a go and after a lazy start we left around 13:15h. We received the probe with around 7 km to go to the landing site. As I found out later on, this corresponded to around 4 km direct line of sight. Consequently, I expected to find the probe high up in a tree. As the probe was transmitting for almost 7 hours, I was\u00a0 concerned that the battery might run dry. So we stopped and\u00a0 after fiddling a bit around with my gear, I decoded\u00a0 a fix:<\/p>\n

nc -lu 6000 | sox -t raw -esigned-integer -b16 -r 48000 –\u00a0 -t wav –\u00a0 lowpass 2100 2>\/dev\/null | .\/rs41dm_dft \u00a0<\/em><\/p>\n

[29309] (R3320048) So 2020-12-13 12:33:10.001 lat: 48.70273 lon: 9.27476 alt: 370.77 vH: 0.1 D: 80.3 vV: 0.0 <\/em>
[29310] (R3320048) So 2020-12-13 12:33:11.001 lat: 48.70273 lon: 9.27476 alt: 370.44 vH: 0.1 D: 344.5 vV: -0.1<\/em><\/p>\n

Once we arrived, we went the last kilometer on foot. Near the landing point we directly found the rest of the balloon and the parachute. To get to the probe we had to\u00a0 negotiated difficult terrain and make our way\u00a0 uphill through thorny underwood. We found the probe lying on the ground. In the process however we lost a rubber plug which we did not find even after a longer search. Considering that the probe was lying on the ground, the distance from that we could receive it, is really remarkable.<\/p>\n\n\n\n

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The parachute and the rest of the balloon<\/figcaption><\/figure>\n\n\n\n

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Slope with thorny underwood<\/figcaption><\/figure>\n\n\n\n

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Thread joining probe and parachute stretched over a tree<\/figcaption><\/figure>\n\n\n\n

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R3320048 laying on the ground<\/figcaption><\/figure>\n\n\n\n

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Probe received from about 4km line of sight<\/figcaption><\/figure>\n\n\n\n

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Landing Zone of R3320048<\/figcaption><\/figure>\n\n\n\n

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Trajectory of R33200048 from Idar-Oberstein to Scharnhausen <\/figcaption><\/figure>\n\n\n","protected":false},"excerpt":{"rendered":"

The morning probe coming from Idar-Oberstein landed somewhere near Scharnhausen. The telemetry was lost at 9:04h in 471 m height. Felix and myself were slowly in deciding to give it a go and after a lazy start we left around 13:15h. We received the probe with around 7 km to go to the landing site. … Continue reading 2020-12-13: RS41 from Idar-Oberstein to Scharnhausen<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"_links":{"self":[{"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/5927"}],"collection":[{"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5927"}],"version-history":[{"count":11,"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/5927\/revisions"}],"predecessor-version":[{"id":5956,"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/5927\/revisions\/5956"}],"wp:attachment":[{"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gloetzner.net\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}