China's Queqiao-2 Relay Satellite Enters Lunar Orbit China's Queqiao-2 relay satellite has successfully performed a near-moon braking procedure and entered its circumlunar orbit,according to the China National Space A...
supported by the National Natural Science Foundation of China (12072365);the Natural Science Foundation of Hunan Province of China (2020JJ4657)。
It is important to calculate the reachable domain(RD)of the manned lunar mission to evaluate whether a lunar landing site could be reached by the spacecraft. In this paper, the RD of free return orbits is quickly eval...
supported by the National Natural Science Foundation of China(No.12233003).
The problem of contingency return from the low lunar orbit is studied.A novel twomaneuver indirect return strategy is proposed.By effectively using the Earth’s gravity to change the orbital plane of the transfer orbi...
Twenty four solar terms summarized by people through long-term observation of the sun’s annual activity has roughly revealed the changing laws of seasons,climate,phenology and so on in a year,reflecting the impact of...
supported by the National Natural Science Foundation of China(Grant Nos.41322031,41404131,41574157,41031065&41304129);the Specialized Research Fund for State Key Laboratories;the Shandong Natural Science Foundation(Grant Nos.2013BSE27132,BS2013HZ001)
Earth's bow shock is the result of interaction between the supersonic solar wind and Earth's magnetopause. However, data limitations mean the model of the shape and position of the bow shock are based largely on near-...
supported by the National Basic Research Programof China(973 Program)(2012CB720000);the National Natural Science Foundation of China(11102020);Program for New Century Excellent Talents in University;Beijing Higher Education Young Elite Teacher Project and China Scholarship Council
Asteroid exploration trajectories which start from a lunar orbit are investigated in this work.It is assumed that the probe departs from lunar orbit and returns to the vicinity of Earth,then escapes from the Earth by ...
supported by the National Natural Science Foundation of China(Grant No.10903002)
The double lunar swing-by orbits are a special kind of orbits in the Earth-Moon system.These orbits repeatedly pass through the vicinity of the Moon and change their shapes due to the Moon’s gravity.In the synodic fr...
supported by the National Natural Science Foundation ofChina (Grant No. 40831061);the National Key Laboratory Special Fund and the Open Research Foundation of Science and Technology on Aerospace Flight Dynamics Laboratory (Grant No. 2012afd1034)
Based on the magnetic field and plasma data obtained by GEOTAIL in 1992-1995 and WIND in1994-2009, the magnetic field and plasma properties in the magnetotail near lunar orbit were studied statistically using the supe...
supported by the National Natural Science Foundation of China (Grant No.10902121)
A circumlunar free return orbit design model that satisfies manned lunar mission constraints is established. By combining analytical method with numerical method,a serial orbit design strategy from initial value desig...
supported by the National Natural Science Foundation of China(Grant No.10702078);the Pre-research Foundation of National University of Defense Technology(Grant No.JC08-01-05)
The Double Lunar-Swingby(DLS)periodic trajectory is a type of large-scale trajectory in Restricted Three-Body Problem framework.First,the principium of the DLS periodic trajectory is studied,and a preliminary design o...