The Management Mode and Scientific Achievements of International Cooperative Payloads on the Chang`E-4 Mission
Jia Yingzhuo,
Xue Changbin,
Fan Yu,
Tang Yuhua,
Zhang Aibing,
Zhang Shenyi,
Zhang Zhanlan,
Chen Yuesong,
Fu Zhongliang,
Zou Yongliao
Issue:
Volume 10, Issue 1, March 2022
Pages:
1-8
Received:
14 January 2022
Accepted:
17 February 2022
Published:
28 February 2022
Abstract: Chang`E-4 mission is the first probe which had achieved soft landing on the far side of the Moon. The four international cooperative payloads are: the Lunar Lander Neutron & Dosimetry (LND) developed by Kiel University in Germany; the Advanced Small Analyzer for Neutrals (ASAN) developed by the Swedish Institute of Space Physics; the Netherlands-China Low Frequency Explorer Instrument (NCLE) developed by the University of Nijmegen in the Netherlands; and the Lunar Small Optical Camera (KLCP) developed by King Abdul-Aziz City for Science and Technology (KACST), Saudi Arabia. They were all successfully powered on and obtained scientific exploration data. This is the first substantial international cooperation in the field of the lunar and deep space exploration in China, which opens a new chapter of international cooperation on several aspects such as application of international cooperative payloads, organizational management model, responsibilities and division of labor. This paper reviews the mode of international cooperative payloads of Chang`E-4 mission, summarizes the work principle, mission goals, technical indicators and preliminary scientific achievements obtained by the four international cooperative payloads, analyzes the problems and risks in the management of international cooperative payloads, proposes a solution and makes suggestions for a wider international cooperation in the field of lunar and deep space exploration in the future.
Abstract: Chang`E-4 mission is the first probe which had achieved soft landing on the far side of the Moon. The four international cooperative payloads are: the Lunar Lander Neutron & Dosimetry (LND) developed by Kiel University in Germany; the Advanced Small Analyzer for Neutrals (ASAN) developed by the Swedish Institute of Space Physics; the Netherlands-Ch...
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Analysis of Earth-Uranus Direct-Transfer Trajectory for Optimal Delta-V Using Lambert’s Problem
Gisa Geoson Suseela,
Yadu Krishnan Sukumarapillai,
Hariprasad Thimmegowda,
Pavan Kalyan Devaiah,
Manjunath Nagendra,
Tamore Silviya Dhiraj
Issue:
Volume 10, Issue 1, March 2022
Pages:
9-17
Received:
23 May 2022
Accepted:
9 June 2022
Published:
21 June 2022
Abstract: The Ice Giants may become a sought-after destination in the coming decades as researchers aim to have a better awareness of our Solar system- its origins and growth. The interplanetary trajectory optimization is an important aspect of the analysis of a mission to Uranus. This study investigates possible interplanetary paths to Uranus in the 2022-2030 timeframe. It provides a preliminary estimate of fuel consumption in units of ΔV for various mission durations. A variety of approaches can be used to travel from Earth to another planet. It is conceivable to use a direct transfer route with two engine burns, one at a parking orbit around the Earth and the other to capture around the target planet. This article emphasizes a direct transfer trajectory analysis towards Uranus using Lambert’s problem. Different lambert arcs were considered for the direct transfer. Variations of excess velocities at arrival and departure for various time-of-flight were obtained. The ceiling of the time-of-flight was fixed as 16.5 years by performing a Hohmann transfer. The minimum ΔV was obtained for various time-of-flight ranging from 8.5 years to 16.5 years. The ideal ΔV obtained during the fixed timeframe lies between 6.87 km/s and 7.98 km/s. The minimum value of ΔV was observed for the time-of-flight of 13.5 years.
Abstract: The Ice Giants may become a sought-after destination in the coming decades as researchers aim to have a better awareness of our Solar system- its origins and growth. The interplanetary trajectory optimization is an important aspect of the analysis of a mission to Uranus. This study investigates possible interplanetary paths to Uranus in the 2022-20...
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