Cubeth magnetotorquers: Design and tests for a cubesat mission

Stefano Rossi, Anton Ivanov, Gael Soudan, Volker Gass, Christine Hollenstein, Markus Rothacher

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Swiss Federal Universities of Lausanne and Zurich have initiated a new 1U CubeSat project. The main objective of the CubETH is to demonstrate use of commercial GNSS receivers in space and test Precision Orbit Determination algorithms. One of the key driving requirements is to provide zenith pointing with a 20 degrees of precision and rotation rate less than 2 degree / second, in order to track GNSS constellation satellites. This paper will describe details of Attitude Determination and Control Subsystem (ADCS) based on magnetotorquers in order to satisfy the science requirements. We will discuss lessons learned from the ADCS implementation on the first Swiss nanosatellite SwissCube (in operation since 2009) and we present the flat shaped magnetotorquers (MTQs) designed in the laboratories of the École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland, detailing design, the test setup and the procedures performed. We present theoretical calculations for the magnetotorquer parameters, simulations, details of manufacturing and results of testing done in the shielded room of the École Polytechnique Fédérale de Lausanne. Testing shows a 93% of match between the 3D model and tests done with the magnetic probe on the new design prepared for CubETH, where the design slightly changed from the previous shape of SwissCube. The paper presents the description of the manufacturing and the process followed in order to highlight the encountered issues on the magnetotorquers fabrication. We address the process to select the proper materials and quantities for the manufacturing of flight and engineering models, addressing the required characteristics for the material selected.

Original languageEnglish
Title of host publication2nd IAA Conference on Dynamics and Control of Space Systems, 2014
EditorsFilippo Graziani, Anna D. Guerman, Jean-Michel Contant
PublisherUnivelt Inc.
Pages1513-1530
Number of pages18
ISBN (Print)9780877036173
Publication statusPublished - 2015
Externally publishedYes
Event2nd International Academy of Astronautics Conference on Dynamics and Control of Space Systems, DyCoSS 2014 - Rome, Italy
Duration: 24 Mar 201426 Mar 2014

Publication series

NameAdvances in the Astronautical Sciences
Volume153
ISSN (Print)0065-3438

Conference

Conference2nd International Academy of Astronautics Conference on Dynamics and Control of Space Systems, DyCoSS 2014
Country/TerritoryItaly
CityRome
Period24/03/1426/03/14

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