China's Space Program Thread II

by78

by78

General
by78 said:
A recent academic paper mentions that Xuntian space telescope is set to launch in 2025. I don't have access to the paper, and I don't know how 'official' this is or whether it is up-to-date.

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According to this screen capture from what appears to be a TV segment or presentation hosted by the Chinese Academy of Sciences, the Xuntian telescope is expected to be launched around 2027.

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Taiban

Junior Member
Registered Member
The world's first atlas of remote-sensing thermal infrared images was released at the 4th International Forum on Big Data for Sustainable Development Goals in Beijing on Friday, providing valuable data support for sustainable development research.

Released by the Beijing-based International Research Center of Big Data for Sustainable Development Goals (CBAS), the atlas is based on data captured by the SDGSAT-1 satellite. Launched into space in November 2021, SDGSAT-1 is the world's first space science satellite dedicated to serving the UN 2030 Agenda for Sustainable Development.

The atlas includes 10 different types of landscapes across 118 regions worldwide, presenting the surface features of rivers, lakes, seas, mountains, hills, and deserts. It also shows scenes of human activities, such as industrial emissions and urban changes, from a thermal infrared perspective, said Guo Huadong, director of CBAS, at the opening ceremony of the forum.

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Taiban

Junior Member
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A Chinese technical assessment on the U.S. Geosynchronous Space Situational Awareness Program (GSSAP) satellites from April last year revealed China’s deepening analysis of U.S. space domain awareness (SDA) capabilities. The Chinese have moved beyond describing U.S. SDA systems, and have begun analyzing these satellites’ on-orbit behavior in academic journals. In a recent example, western media last year flagged a Chinese language article that published a list of close approaches between GSSAP and Chinese satellites; the article’s authors also simulated one of GSSAP’s optical payloads, at varying distances. When compared with other Chinese evaluations of GSSAP’s pattern of life, including more recent assessments, China’s ability to track GSSAP is improving in two noteworthy ways. First, China is not alone in improving its ability to track GSSAP, but in one instance, the People’s Liberation Army (PLA) was able to track GSSAP-3, even in the face of limited western data. Second, China’s space practitioners are becoming more confident in publicizing close approaches within 100 kilometers (km) between GSSAP and Chinese satellites, probably because they can build off of research directly published by the PLA. Another reason for Chinese academics’ forward leaning assessments of close approaches is that earlier this year, China implemented its national standard for space object orbital data. Armed with their own analysis and empowered to publicize it, Chinese experts are preparing to fill the international discourse gap on GSSAP’s operations.

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Believer2

Just Hatched
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Will we ever see the Long March 3A and 3C/E fly again, or has the 3B/E taken priority of both of them, on Wikipedia it says that both of them active, but they haven't flown in years
 
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