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ETS-VII
The ETS-VII, or Engineering Test Satellite No. 7, was a satellite developed and launched by the National Space Development Agency of Japan (NASDA). It is also known as KIKU-7.〔 It was launched aboard an H-II rocket from Tanegashima Space Center, on 28 November 1997.〔 The ETS-VII was equipped with a 2 metre long robotic arm, which was used to carry out several experiments related to rendezvous docking and space robotics.〔 It was the world’s first satellite to be equipped with a robotic arm, and also the first unmanned spacecraft to conduct autonomous rendezvous docking operations successfully. Although it was originally intended to be used for 1.5 years, the satellite was functional for a period of almost five years.〔
==Features==
The ETS-VII consists of two main parts; the chaser satellite and the target satellite. The chaser satellite is the main satellite body, and was named ''Hikoboshi''. A 2 m long robotic arm was attached to this part. The smaller target satellite was named ''Orihime''. The box shaped, complete satellite system weighed 2,860 kg. The ETS-VII was equipped with three solar panels, with two on the chaser satellite and one on the target satellite. The satellite was assisted by relative global positioning system (RGPS) navigation.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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