China has made progress in scientific data simulation for the Chinese Space Station Telescope (CSST), also known as the Xuntian Space Telescope, marking a crucial step in preparing for the country's flagship space astronomy facility.
A collaborative Chinese research team built an end-to-end observation simulation suite for both the telescope's main optical system and various observation terminals.
The suite achieved high-quality, pixel-level simulation of observation data, which will be used for the comprehensive evaluation of the telescope's overall performance.
The research was published online Wednesday in a special issue of the journal Research in Astronomy and Astrophysics, and is expected to lay the foundation for high-yield original scientific output after the telescope is launched.
The CSST is a major space astronomy facility planned as part of China's manned space program. Equipped with a 2-meter-aperture primary mirror, the telescope features a large field of view, high image quality and wide waveband coverage.
It is expected to facilitate major scientific discoveries across various astrophysical fields, including cosmology, the study of galaxies, the Milky Way, stars and planets, according to the National Astronomical Observatories under the Chinese Academy of Sciences (NAOC), which led the study.
Scientific simulation is an indispensable procedure prior to the launch. It acts as a "digital rehearsal" for the mission, generating mock data to validate the process flow and optimize observation strategies before the launch.
The CSST is an important component of China's space station. After launch, it will fly independently in the same orbit as the space station and can dock with the station for supply, maintenance and upgrades.
Key breakthrough achieved in data simulation for China's Space Telescope
Key breakthrough achieved in data simulation for China's Space Telescope
China's blue-chip CSI 300 Index made modest gains in the past week thanks to the huge electrification campaign that reduces the country's exposure to the volatile oil price as the continuing conflict in the Middle East enters the second week, said an analyst on Friday.
Chinese stocks closed lower on Friday, with the benchmark Shanghai Composite Index down 0.81 percent to 4,095.45 points.
Timothy Pope, a market analyst for China Global Television Network, said the CSI 300 Index made modest gains despite a rough week for both Chinese and global stock markets.
"The conflict in the Middle East really shows no sign of winding down and it has been as you said another rough week for the global markets. Today the Shanghai Composite Index closed down 0.8 percent, and ended lower for the week as well, but the blue-chip CSI 300 Index actually managed to make some modest gains this week. And that fits what we've been hearing from analysts and investment banks, including Morgan Stanley and UBS. They've said that China's got less oil exposure than other economies. This is partly because of the huge electrification campaign which has been happening in China from family cars to road haulage, and also just the total energy mix here. But we know that oil isn't the only thing that's not getting out of the Middle East at the moment. Fertilizer has emerged as another big disruption point and we have seen in the last 48 hours China already begin early releases of fertilizer reserves ahead of the spring planting season. With all that in the mix we have seen the likes of Morgan Stanley and UBS touting A-shares as a diversification option and a resilient market in this risk-off investment environment," said Pope.
"Sector-wise today we saw some consumer stocks rising -- led by liquor makers, in particular, Kweichow Moutai. There were also some limited gains for Chinese real estate and financial firms. But with the oil price still extremely volatile, Chinese resources and energy shares pulled back today to become the two worst-performing sectors," said Pope.
Chinese blue-chip stocks make gains amid a rough week for global markets: analyst
