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探月航天器与月球周围等离子体环境相互作用,表面将出现充放电效应,给航天器带来很多不利影响. 表面充电电位对充放电的影响至关重要. 评估探月航天器的充放电效应,首先需获得月球周围等离子体环境数据. 嫦娥一号上搭载的两台太阳风离子探测器SWIDA/B是用来观测月球200 km轨道附近等离子体环境的探测仪器,获得了月球附近的太阳风速度、密度和温度. 本文对2008年6月一个月内太阳风离子探测器SWIDA机获得的离子微分通量进行统计平均,得到太阳风离子微分通量能谱,并计算得到了月球200 km附近的太阳风速度(300.00–600.00 km·s-1)、密度(1–10 cm-3)和温度(1–20 eV). 最后采用等效电路模型的方法计算得到了探月航天器表面充电电位范围为-7–-70 V.The interaction between lunar plasma and spacecraft may cause surface charging/discharging effects, and degrade the performance of spacecraft. The charging potential is a key factor for discharging process. In order to evaluate charging/discharging effects, it is necessary to obtain the Lunar plasma environment. SWIDA/B on Chang’E-1 are the two scientific instruments of solar wind ion detector which could explore the plasma environment in the 200 km Lunar orbit, thereby deducing the solar wind bulk speed, density and temperature. In this paper we select the data in June 2008 derived from SWIDA sensor. First, we figure out the solar wind ion differential flux and energy spectrum, and then calculate the solar wind parameters such as velocity (300.00–600.00 km/s), plasma density (1–10 cm-3) and plasma temperature (1–20 eV). Finally, we adopt an equivalent circuit model to compute the Lunar spacecraft surface charging voltage which is -7–-70 V.
[1] Zelenyi L M, Zakharov A V, Zakutnyaya O V 2011 Solar Syst. Res. 45 697
[2] Zhu M H, Liu L G, Xu A A 2008 Chin. Phys. Lett. 25 490
[3] Saito Y, Yokota S, Asamura K, Tanaka T, Akiba R, Fujimoto M, Hasegawa H, Hayakawa H, Hirahara M, Hoshino M, Machida S, Mukai T, Nagai T, Nagatsuma T, Nakamura M, Oyama K, Sagawa E, Sasaki S, Seki K, Terasawa T 2008 Earth Planets Space 60 375
[4] Stubbs T J, Halekas J S, Farrell W M 2007 45th AIAA Aerospace Science Meeting Reno NV, January 8–11, 2007 p37
[5] Ogilvie K W, Chornay D J, Fritzenreiter R J, Hunsaker F, Keller J, Lobell J, Miller G, Scudder J D, Sittler E C, Torbert R B, Bodet D, Needell G, Lazarus A J, Steinberg J T, Tappan J H, Mavretic A, Gergin E 1995 Space Sci. Rev. 71 55
[6] Ogilvie1 K W, Steinberg J T, Fitzenreiter1 R J, Owen1 C J, Lazarus A J, Farrell W M, Torbert R B 1996 Geophys. Res. Lett. 23 1255
[7] Yu D J, Liu Y, Ren Q Y 2001 Chin. J. Space Sci. 4 359 (in Chinese) [于德江, 刘颖, 任琼英 2001 空间科学学报 4 359]
[8] Chen Y 2004 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [陈耀 2004 博士学位论文 (合肥: 中国科学技术大学)]
[9] Minow J I, Diekmann A M, Blackwell W C 2007 AIAA-2007-0910
[10] Ryschkewitsch M G 2011 NASA-HDBK-4002A
[11] Cao H F, Liu S H, Sun Y W, Yuan Q Y 2013 Acta Phys. Sin. 62 149402 (in Chinese) [曹鹤飞, 刘尚合, 孙永卫, 原青云 2013 62 149402
[12] Tian L C, Shi H, Li J, Zhang T P 2012 Spacecr. Environ. Engineer. 29 144 (in Chinese) [田立成, 石红, 李娟, 张天平 2012 航天器环境工程 29 144]
[13] Cao H F, Liu S H, Sun Y W, Yuan Q Y 2013 Acta Phys. Sin. 62 119401 (in Chinese) [曹鹤飞, 刘尚合, 孙永卫, 原青云 2013 62 119401]
[14] Li X C, Wang Y N 2004 Acta Phys. Sin. 53 2669 (in Chinese) [李雪春, 王友年 2004 53 2669]
[15] Shen Z C, Kong W J, Feng W Q, Ding Y G, Liu Y M, Zheng H Q, Zhao X, Zhao C Q 2009 Acta Phys. Sin. 58 860 (in Chinese) [沈自才, 孔伟金, 冯伟泉, 丁义刚, 刘宇明, 郑慧奇, 赵雪, 赵春晴 2009 58 860]
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[1] Zelenyi L M, Zakharov A V, Zakutnyaya O V 2011 Solar Syst. Res. 45 697
[2] Zhu M H, Liu L G, Xu A A 2008 Chin. Phys. Lett. 25 490
[3] Saito Y, Yokota S, Asamura K, Tanaka T, Akiba R, Fujimoto M, Hasegawa H, Hayakawa H, Hirahara M, Hoshino M, Machida S, Mukai T, Nagai T, Nagatsuma T, Nakamura M, Oyama K, Sagawa E, Sasaki S, Seki K, Terasawa T 2008 Earth Planets Space 60 375
[4] Stubbs T J, Halekas J S, Farrell W M 2007 45th AIAA Aerospace Science Meeting Reno NV, January 8–11, 2007 p37
[5] Ogilvie K W, Chornay D J, Fritzenreiter R J, Hunsaker F, Keller J, Lobell J, Miller G, Scudder J D, Sittler E C, Torbert R B, Bodet D, Needell G, Lazarus A J, Steinberg J T, Tappan J H, Mavretic A, Gergin E 1995 Space Sci. Rev. 71 55
[6] Ogilvie1 K W, Steinberg J T, Fitzenreiter1 R J, Owen1 C J, Lazarus A J, Farrell W M, Torbert R B 1996 Geophys. Res. Lett. 23 1255
[7] Yu D J, Liu Y, Ren Q Y 2001 Chin. J. Space Sci. 4 359 (in Chinese) [于德江, 刘颖, 任琼英 2001 空间科学学报 4 359]
[8] Chen Y 2004 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [陈耀 2004 博士学位论文 (合肥: 中国科学技术大学)]
[9] Minow J I, Diekmann A M, Blackwell W C 2007 AIAA-2007-0910
[10] Ryschkewitsch M G 2011 NASA-HDBK-4002A
[11] Cao H F, Liu S H, Sun Y W, Yuan Q Y 2013 Acta Phys. Sin. 62 149402 (in Chinese) [曹鹤飞, 刘尚合, 孙永卫, 原青云 2013 62 149402
[12] Tian L C, Shi H, Li J, Zhang T P 2012 Spacecr. Environ. Engineer. 29 144 (in Chinese) [田立成, 石红, 李娟, 张天平 2012 航天器环境工程 29 144]
[13] Cao H F, Liu S H, Sun Y W, Yuan Q Y 2013 Acta Phys. Sin. 62 119401 (in Chinese) [曹鹤飞, 刘尚合, 孙永卫, 原青云 2013 62 119401]
[14] Li X C, Wang Y N 2004 Acta Phys. Sin. 53 2669 (in Chinese) [李雪春, 王友年 2004 53 2669]
[15] Shen Z C, Kong W J, Feng W Q, Ding Y G, Liu Y M, Zheng H Q, Zhao X, Zhao C Q 2009 Acta Phys. Sin. 58 860 (in Chinese) [沈自才, 孔伟金, 冯伟泉, 丁义刚, 刘宇明, 郑慧奇, 赵雪, 赵春晴 2009 58 860]
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