Re-planning of rendezvous docking experiment of ETS-VII, and its result

ETS-VII is a test satellite for performing in-orbit demonstration of rendezvous docking (RVD) technology, which will be necessary for advanced space activities in the early 21st century. ETS-VII successfully performed autonomous RVD in the first experiment flight, but in the second experiment flight...

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Published inNihon Kikai Gakkai ronbunshū. C Vol. 68; no. 671; pp. 133 - 140
Main Authors Kawano, I, Mokuno, M, Yamanaka, K, Suzuki, T, Koyama, H, Kunugi, M
Format Journal Article
LanguageJapanese
Published 01.07.2002
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Summary:ETS-VII is a test satellite for performing in-orbit demonstration of rendezvous docking (RVD) technology, which will be necessary for advanced space activities in the early 21st century. ETS-VII successfully performed autonomous RVD in the first experiment flight, but in the second experiment flight, Z-thruster misfiring occurred several times, and these misfirings prevented the ETS-VII from accomplishing docking for three weeks. To verify all technical items, the third experiment flight was re-planned on the condition that firing of the Z-thrusters should be minimized. We modified the on-board software to continue the approach in case the Z-thrusters misfire. ETS-VII succeeded in the third experiment as the result of these countermeasures. We present the re-planning of the third experiment flight and its result in this paper.
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ISSN:0387-5024