China’s (and globally) first synthetic aperture radar (SAR) satellite being put into geosynchronous orbit. It can provide unprecedented all-time Earth observations of an area near the same longitude and can provide unique non-interrupted observations for various uses.
Geosynchronous Transfer OrbitLuna 25 (ex-Luna-Glob) was a lunar lander mission by the Russian Federal Space Agency (Roscosmos) that crashed into the lunar surface after an anomalous orbital maneuver placed it on a collision trajectory towards the Moon. It was scheduled to land near the lunar south pole at the Boguslavsky crater to prove lunar landing technology. The mission carried 30 kg of scientific instruments, including a robotic arm for soil samples and possible drilling hardware. It was planned to remain active for at least one year on the lunar surface.
Lunar OrbitGlonass-K2 are the fourth generation of satellite design for GLONASS satellite navigation system. GLONASS is a Russian space-based navigation system comparable to the similar GPS and Galileo systems. This generation improves on accuracy, power consumption and design life. Each satellite is unpressurized and weighs 1645 kg, and has an operational lifetime of 10 years.
Medium Earth Orbit