Queqiao dotarł na orbitę docelową L2 układu Ziemia-Księżyc BY MICHAŁ MOROZ ON 17 CZERWCA 2018
Orbita Chang’e 4R / CAST(...) Queqiao wykonał pierwszy manewr hamujący 25 maja w odległości 100 km od powierzchni Księżyca. Drugi raz silniki zostały odpalone na 6 minut 13 czerwca. Satelita został umieszczony na nieregularnej, trójwymiarowej orbicie wokół drugiego punktu libracyjnego układu Ziemia-Księżyc, która rozciąga się między 65 a 80 tysiącami km za Księżycem. (...)
https://kosmonauta.net/2018/06/queqiao-dotarl-na-orbite-docelowa-l2-ukladu-ziemia-ksiezyc/Chang’e-4 relay satellite enters halo orbit around Earth-Moon L2, microsatellite in lunar orbitby Andrew Jones — June 14, 2018
(...) It will use a 4.2-meter parabolic antenna to relay telecommands from the ground to the Chang’e-4 lunar spacecraft and transmit data and telemetry back to Earth via S-band, while using X-band to communicate with the lander and rover.
The relay satellite is also equipped with the Netherlands-China Low-Frequency Explorer (NCLE), a low-frequency, space-based astronomy pathfinder experiment that will attempt to detect radio signals from the cosmic dark ages, before emission of light by the first stars in the universe.
The three 5-meter-long antennas will be deployed after the lander and rover section of the mission, which is designed to last a minimum of three months.
Longjiang microsatellite operating in lunar orbitThe State Administration for Science, Technology and Industry for National Defense (SASTIND), which oversees China’s space activities, on June 14 also provided an update on the pair of microsatellites launched along with Queqiao.
Unlike the relay satellite, the two 47-kilogram satellites developed by the Harbin Institute of Technology were intended for lunar orbit.
The report states that Longjiang-2, also known as DSLWP-B, successfully entered an elliptical lunar orbit using its own propulsion May 25, while Queqiao headed towards Earth-Moon L2.
SASTIND confirmed however that Longjiang-1 (DSLWP-A) had suffered an anomaly during Earth-Moon transfer and did not enter lunar orbit. This was the first official acknowledgement that the spacecraft had been lost. (...)
http://spacenews.com/change-4-relay-satellite-enters-halo-orbit-around-earth-moon-l2-microsatellite-in-lunar-orbit/