The New Mission of ‘Rosetta’ Comet Chaser and In-Orbit First Temperature Results
The New Mission of ‘Rosetta’ Comet Chaser and In-Orbit First Temperature Results
复制标题
“罗塞塔”彗星追逐者的新任务和在轨第一温度结果
DOI：
10.4271/2004-01-2356
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
S. Tuttle
中科院分区：
文献类型：
--
作者：
D. Stramaccioni;R. Kerner;S. Tuttle
The Rosetta spacecraft was re-targeted to a newly selected comet following a one-year launch delay. The thermal control of the spacecraft has to cope with a large Sun distance range - 0.88 to 5.35 AU - and increasing comet activity combined with operational conditions that span from full payload activity to power saving hibernation mode. The new mission stretches the range of solar flux even further than the original mission and some adaptations to the thermal hardware were required. This paper describes how the new demanding mission scenario influenced the thermal design of the spacecraft and its operations. Then, the thermal behaviour of the spacecraft as revealed by the first in-orbit results is evaluated and compared where possible with the response anticipated by the analyses and by the environmental thermal test programme results. Rosetta was injected into an Earth escape trajectory on March 2 th 2004 by an Ariane 5 dedicated launch.
