由SGM100i质量分析看SELENE的贡献Contribution of SELENE for Lunar Gravity Field Recovery from quality analysis of SGM100i
孙玉,常晓涛,郭金运,孔巧丽
摘要(Abstract)：
月球重力场是研究月球演化和深部构造的基本物理量,也是低轨月球卫星精密定轨的关键。SELENE以高-低卫星跟踪卫星模式历史上首次获得了月球背面重力场直接观测数据。与GLGM-3相比,增加了SELENE跟踪数据的SGM100i在各方面表现出较高的精度:其位系数误差阶方差在15～30阶减小超过10倍,最大达到66倍(15阶);位系数与地形的相关性系数在50～70阶高达0.9,而GLGM-3只有0.6～0.7;基于SGM100i计算的重力异常和月球大地水准面起伏也更好地揭示了月球背面与环形地形相关的重力场特征,从而验证了SELENE 4程Doppler数据对于月球重力场解算的贡献。
关键词(KeyWords)： SELENE;SGM100i;GLGM-3;月球重力场
基金项目(Foundation): 国家自然科学基金(40974016);; 山东省泰山学者建设工程专项(TSXZ0502)
作者(Author): 孙玉,常晓涛,郭金运,孔巧丽
DOI: 10.16251/j.cnki.1009-2307.2012.02.023
参考文献(References)：
- [1]Namiki N,Lwata T,Matsumoto K,et al.Farside Grav-ity Field of the Moon from Four-way Doppler Measure-ments of SELENE(Kaguya)[J].Science,2009,323(5916):900-905.
- [2]陈俊勇,宁津生,章传银,等.在嫦娥一号探月工程中求定月球重力场[J.]地球物理学报,2005,48(2).
- [3]Lemoine F G,Rowlands D D,Mazarico E.et al.Preci-sion orbit determination for the Lunar ReconnaissanceOrbiter(LRO)[C]//37th COSPAR Assembly.Mont-real,Que,2008.
- [4]Rowlands D D,Lemoine F G,Chinn D S,Luthcke SB.A simulation Study of Multi-beam Altimetry for LunarReconnaissance Orbiter and Other Planetary Missions[J].J.Geod.,2009,83(8):709-721.
- [5]Konopliv A S,Asmar S W,Carranza I,et al.RecentGravity Models as a Result of the Lunar Prospector Mis-sion[DB].Icarus,2001,150:1-18.
- [6]Goossens S,Matsumoto K,Liu Q,et al.Lunar GravityField Determination Using SELENE Same-beam Differen-tial VLBI Tracking Data[J].J.Geod.,2010,84.DOI:10.1007/s00190-010-0430-2.
- [7]Konopliv A S,Yuan D N.Lunarp rospector 100th degreegravity model development[C].Lunarplanet.Sci.Conf.30th,Abstract 1067,1999.
- [8]Kaula W M.Theory of Satellite Geodesy-Applications ofSatellites to Geodesy[M].London:Blaisdell,1966.
- [9]Ping J S,Huang Q,Yan J G,et al.Lunar TopographyModel CLTM-s01 from Chang’E-1 Laser Altimeter[J].Science in China Series G:Physics,Mechanicsand Astronomy.2009,52(7):1105-1114.
- [10]Neumann G A,Zuber M T,Smith D E,Lemoine FG.The Lunar Crust:Global Structure and Signature ofMajor Basins[J].J.Geophys.Res.,1996,101(E7):16841-16863.
- [11]Torge W.Geodesy[M].Berlin;Newyork;deGruyter,2001.