23 February 2021
Compared to GPS, the Beidou satellite navigation system is more visible from near-Earth space – and may be more of a beacon for spacecraft – according to a new study. Researchers from the National Space Science Centre in Beijing found that a spacecraft travelling at or below an altitude of 2,000 km would be able to see 50 % more Beidou satellites than those from the Global Positioning System at any given time.
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23 February 2021
The National Museum of China announced on 23 February that it would exhibit the lunar samples brought back by the Chang'e 5 probe. The samples arrived at the museum on 22 February and the exhibition is under preparation, according to the museum. They are preserved in a delicate container made of artificial crystal.
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24 February 2021
The 3rd group of Yaogan-31 remote sensing satellites was sent into space from the Jiuquan Satellite Launch Centre on 24 February, at 10:22 BJT. The satellites were carried by a CZ-4C rocket. Having entered their planned orbits, the satellites will be used for electromagnetic environment surveys and other related technology tests.
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24 February 2021
Tianwen 1 entered its parking orbit on 24 February at 6:29 BJT. The orbital parameters are 280 km by 59,000 km. It will take Tianwen 1 about two Martian days to complete one orbit. The Mars probe will remain in orbit for the next 3 months (approximately). All of the seven mission payloads on the probe's orbiter will be gradually activated to carry out scientific tasks and also to observe and analyse the landforms and weathers of the optimal landing site. The medium-resolution camera, high-resolution camera and spectrometer will carry out a detailed investigation on the topography and dusty weather of the pre-selected landing area in preparation for a landing.
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