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Summary

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1 -Amadee-20-TUMBLEWEED-JRP
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1 -AMADEE-20.WebHome
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1 -=== Details ===
2 -
3 -|**Acronym**|TUMBLEWEED-JRP
4 -|**Description**|Tumbleweed is the concept of a spherical rover to be
5 -deployed on Mars.
6 -|**Principal Investigator (PI)**|(((
7 -Julian Rothenbuchner | [[julian@teamtumbleweed.eu>>mailto:julian@teamtumbleweed.eu]]
8 -)))
9 -|**Organisation** |University of Technology, Vienna
10 -|**Co-Investigators**|(((
11 -Moritz Stephan, Stanford University; Wurlitzergasse 93/23, 1170 Vienna
12 -E-mail: [[moritz@teamtumbleweed.eu>>mailto:moritz@teamtumbleweed.eu]]
13 -
14 -Dominik Schmidt, University of Technology Vienna; Hietzinger Hauptstr. 69/3, 1130 Wien, :
15 -E-mail: [[dominik@teamtumbleweed.eu>>mailto:dominik@teamtumbleweed.eu]]
16 -
17 -Amelie Finan, University of Vienna; Bernhard Schilcher Straße 18, 2000 Stockerau
18 -E-mail: [[amelie@teamtumbleweed.eu>>mailto:amelie@teamtumbleweed.eu]]
19 -
20 -Josef E. Pürmayr, Sir Karl Popper school; Wiedner Gürtel 68, 1040 Vienna;
21 -E-mail: [[josef@teamtumbleweed.eu>>mailto:josef@teamtumbleweed.eu]]
22 -
23 -
24 -
25 -)))
26 -
27 -=== Summary ===
28 -
29 -[[image:1628955738683-845.png]]
30 -
31 -Tumbleweed is the concept of a spherical rover to be deployed on Mars. They are designed to be spheres of a
32 -diameter of 5 m equator-wards by Martian winds. One Tumbleweed consists of a sturdy aluminum/composite
33 -outer frame and sails arranged to provide optimal air resistance. Solar cells on the sails provide power. Sensors
34 -and electronics are attached to the outer frame. The first Tumbleweed prototype was already participating in
35 -the AMADEE-18 mission. The research questions for the AMADEE-20 experiment can be summarized as:
36 -
37 -1) What is the performance of the solar cells perform under operational conditions? Specifically, what is
38 -the effect of the constantly changing illumination angle caused by the rover’s movement
39 -and different times of day?
40 -2) What is the distribution of abrasion on the Tumbleweed’s structure? Surface abrasion is
41 -expected to be one of the main factors limiting the structural lifespan of a Tumbleweed
42 -Rover. The aim is to find out more about the rate and distribution of this abrasion. The
43 -test shall be conducted in sandy as well as increasingly rocky environment.
44 -3) How does the Tumbleweed’s speed and direction of movement vary under different
45 -wind conditions?
46 -
47 -
48 -= Experiment Data =
49 -
50 -|=(% style="width: 156px;" %)Date|=(% style="width: 1683px;" %)Files
51 -|(% style="width:156px" %)[[2021-10-15>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-15/]]|(% style="width:1683px" %)(((
52 -pictures of wring issues
53 -)))
54 -|(% style="width:156px" %)[[2021-10-17>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-17]]|(% style="width:1683px" %)repair pics
55 -|(% style="width:156px" %)[[2021-10-18>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-18/]]|(% style="width:1683px" %)troubleshooting pics
56 -|(% style="width:156px" %)[[2021-10-19>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-19]]|(% style="width:1683px" %)Pictures and Video
57 -|(% style="width:156px" %)[[2021-10-20>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-20]]|(% style="width:1683px" %)2xVideo, 5 pics, POI.md
58 -|(% style="width:156px" %)[[2021-10-22>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-22/]]|(% style="width:1683px" %)7 pictures
59 -|(% style="width:156px" %)[[2021-10-24>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-24]]|(% style="width:1683px" %)2 videos
60 -|(% style="width:156px" %)[[2021-10-29>>https://mission.oewf.org/archive_downloads/amadee20/TUMBLEWEED-JRP/2021-10-29]]|(% style="width:1683px" %)1 video
61 -
62 -
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