Abstract Due to the differences in ranging accuracy and stability of satellite laser ranging(SLR) stations, different weighting must be assigned to stations with different performance in precision orbit determination. We apply the fuzzy C-means(FCM) cluster weighting to precise orbit determination of LAGEOS-2 and compare its impact on orbit accuracy with the original station weighting. The results show that: 1) Compared to the original station weighting, FCM weighting better reflects the performance of each SLR station, improves orbit accuracy and increases observation quantity. 2) Among the four quality analysis centers of ILRS, under the original station weighting, the quality reports of JCET exhibit slightly superior orbit accuracy compared to other centers. When using FCM weighting, the results obtained from quality reports of all four analysis centers yield similar orbit accuracy level, ranging between 4.83 and 4.86 cm.
WANG Jun’ao,ZHONG Shiming,ZHANG Jie et al. Influence of FCM Station Weighting on Precise Orbit Determination of LAGEOS-2 Satellite[J]. jgg, 2024, 44(7): 684-689.
WANG Jun’ao,ZHONG Shiming,ZHANG Jie et al. Influence of FCM Station Weighting on Precise Orbit Determination of LAGEOS-2 Satellite[J]. jgg, 2024, 44(7): 684-689.