Towards Improved Lunar Reference Frames: LRO Orbit Determination
Towards Improved Lunar Reference Frames: LRO Orbit Determination
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迈向改进的月球参考系：LRO 轨道确定
DOI：
10.1007/1345_2015_146
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Oberst
中科院分区：
文献类型：
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作者：
Löcher;Hofmann;Gläser;Müller;Kusche;Oberst
月球参考系目前是通过阿波罗宇航员和苏联无人航天器部署的几个激光反射器的坐标来实现的。将这种坐标知识扩展到月球表面图像中可识别的其他特征，需要采集航天器的高度精确的轨道。为了利用月球勘测轨道飞行器（LRO）的图像和测高数据支持这些活动，建立了一个独立的处理设施，用于跟踪LRO的观测数据。我们目前的轨道从1年无线电多普勒，无线电测距和激光测距数据获得的不同组合的数据类型。为了获得对所达到的轨道精度的外部确认，通过摄影测量技术在LRO图像中测量了阿波罗15号反射器的坐标，并将其与月球激光测距（LLR）的参考值进行了比较。发现坐标差异在10米水平。
Lunar reference systems are currently realized by sets of coordinates of the few laser reflectors deployed by Apollo astronauts and unmanned Soviet spacecrafts. Expanding this coordinate knowledge to other features identifiable in images of the lunar surface requires highly accurate orbits of the acquiring spacecraft. To support such activities using images and altimetry data from the Lunar Reconnaissance Orbiter (LRO), an independent processing facility for tracking observations to LRO has been established. We present orbits from 1 year radio Doppler, radio ranging and laser ranging data obtained by different combinations of data types. To obtain an external confirmation for the achieved orbit accuracy, coordinates of the Apollo 15 reflector were measured in LRO images by photogrammetric techniques and compared to reference values from Lunar Laser Ranging (LLR). Coordinate differences were found to be at the 10 m level.
NASA GSFC 月球勘测轨道器 (LRO) 轨道估计和预测
DOI：
--
发表时间：
2010
期刊：
影响因子：
--
作者：
A. Nicholson;S. Slojkowski;A. Long;R. Lamb
通讯作者：
R. Lamb