the National Natural Science Foundation of China(Grant Nos.11703005,11533004,11178006,11673071,11263003 , 11273066).
A pure two-body problem has seven integrals including the Kepler energy,the Laplace vector and the angular momentum vector.However,only five of them are independent.When the five independent integrals are preserved,th...
supported by the National Natural Science Foundation of China(Grant Nos.11073059,10833001,11178006,11273066 and 11203086)
HD 6840 is a double-lined visual binary with an orbital period of N7.5 years. By fitting the speckle interferometric measurements made by the 6 m BTA telescope and 3.5 m WIYN telescope, Balega et al. gave a preliminar...
中天观测数据在建立太阳系高精度行星历表时具有重要作用.在处理由JPL(Jet Propulsion Laboratory)以及IMCCE(Institut De Mecanique Celeste Et De Calcul Des Ephemerides)提供的中天数据时发现,有若干组数据的参考星表没有被明确指...
funded by the National Natural Science Foundation of China (Grant Nos. 11103085 and 11178006)
For tracking spacecraft and performing radio science, the transformation between the proper time (τ) given by a clock carried onboard a spacecraft and the barycentric coordinate time (TCB) is investigated under I...