Tianwen-2
Mission type | Asteroid sample return Comet orbiter/lander |
---|---|
Operator | CNSA |
Mission duration | 10 years (planned) |
Spacecraft properties | |
Manufacturer | CAST |
Launch mass | ≤2,000 kg (4,400 lb)[1] |
Start of mission | |
Launch date | May 2025 (planned)[2] |
Rocket | Long March 3B[2] |
Launch site | Xichang[3] |
Contractor | CASC |
311P/PANSTARRS orbiter | |
Orbital insertion | 2034[4][5] |
Tianwen-2 (
Overview
Tianwen-2 is scheduled to be launched on a
The spacecraft will use both anchor-and-attach and touch-and-go methods to attempt collection of a sample from the asteroid. It would be the first time an anchor-and-attach method has been used on an asteroid, as both OSIRIS-REx and Hayabusa2 used touch-and-go.[10]
Tianwen-2 will then return to Earth to drop off a return capsule containing the sample and conduct a gravity assist maneuver to propel the spacecraft toward 311P/PANSTARRS.[11] A flyby of an unnamed asteroid may also be attempted en route to 311P/PANSTARRS.[3] Remote sensing and in-situ measurements will be conducted at 311P/PANSTARRS for at least one year.[7][12]
The original name of this mission referenced the 15th century
History
In 2018, a deep space exploration roadmap covering the 2020–2030 timeframe was proposed by researchers at the
Instruments
Tianwen-2 will incorporate several types of instruments, including wide/narrow angle multispectral and color cameras, a
International contributions to these payloads are being encouraged.References
- ^ a b c 赵志军、全齐全、潘博、危清清、赵京东. "多臂协作式小天体附着取样机器人机械系统". 哈尔滨工业大学. Retrieved 2022-01-20.
- ^ a b c Jones, Andrew (26 June 2023). "China conducts parachute tests for asteroid sample return mission". SpaceNews. Retrieved 19 September 2023.
- ^ a b c Jones, Andrew (5 August 2020). "China is moving ahead with lunar south pole and near-Earth asteroid missions". SpaceNews. Retrieved 5 August 2020.
- ^ Snodgrass, Colin (October 2018). "Exploring the next frontier: the Main Belt Comets – Chinese MBC mission" (PDF). University of Edinburgh. p. 20. Retrieved 4 June 2019.
- ^ 我们的太空 (2021-04-27). "【讯息·航天】2021中国航天大会 航天领域重磅消息密集发布:小天体探测、月球科研站、重型火箭……" (in Simplified Chinese). 知乎. Retrieved 2022-06-25.
- ^ Jones, Andrew (2022-05-18). "China to launch Tianwen 2 asteroid-sampling mission in 2025". Space.com. Retrieved 2022-07-31.
- ^ a b c d e Zhang, Xiaojing; Huang, Jiangchuan; Wang, Tong; Huo, Zhuoxi (18–22 March 2019). ZhengHe – A Mission to a Near-Earth Asteroid and a Main Belt Comet (PDF). 50th Lunar and Planetary Science Conference. Retrieved 4 June 2019.
- ^ S2CID 155198626. Retrieved 4 June 2019.
- ^ "China to meet challenges of exploring asteroid, comet". Xinhua. 6 November 2019. Archived from the original on November 6, 2019. Retrieved 7 November 2019.
- ^ "China Plans Near-Earth Asteroid Smash-and-Grab". IEEE Spectrum. 2021-08-10. Retrieved 2021-11-04.
- ^ Xinhua. 18 April 2019. Archived from the originalon April 18, 2019. Retrieved 4 June 2019.
- Xinhua. 24 April 2021. Retrieved 30 June 2021.
- S2CID 256881663. Retrieved 4 June 2019.
- ^ "China outlines roadmap for deep space exploration". SpaceDaily. 26 April 2018. Retrieved 4 June 2019.
- ^ Wang, F. (27 June 2018), "China's Cooperation Plan on Lunar and Deep Space Exploration" (PDF), Sixty-first session (2018) of the Committee on the Peaceful Uses of Outer Space, UNOOSA, retrieved 4 June 2019.