Space Solar Telescope (SST) —— 申请发改委“十二五”项目

1. Space Solar Telescope (SST)——申请发改委“十二五”项目 Proposed by Chinese Academy of Sciences and China Aerospace Science and Technology Corporation

2. EUT HWT MOT Space Solar Telescope (SST) in China SST was proposed by Prof. G. Ai et al.

3. The basic materials of SST for this talk are mainly provided by: • Profs. G. Ai, S. Yang, S. Jin, S. Wang, B. Ye, Q. Song, Y. Deng, Y. Yan et al. from National Astronomical Observatories, CAS • Profs. J. Chang, R. Wang et al. from Chinese Academy of Space Technology • Profs. W. Gan et al. from Purple Mountain Observatory, CAS • Prof. B. Chen et al. from Changchun Institute of Optics, Fine Mechanics and Physics, CAS

4. Space Solar Telescope (SST) in China Solar synchronous circular orbit Orbit height: 735 km Inclination: 98.3° Period: 99.3 min Attitude: accuracy ±6", stability ±3"/s Weight: < 2 ton Duration: 3 years Launch: LM-4B

5. Main payloads of SST

7. Imaging and Spectroscopy are Complementary THROUGHOUT the Solar Atmosphere This is high resolution spectroscopy (HRTS 1978) that first showed the need for High Spatial Resolution (~ or ≤ 0.1") Fine Structure: strands sub- &supersonic (Brekke, 1999) Filling Factor 1%: 0.1" 0.1%: 30 mas UV & FUV TRACE SOHO/SUMER

8. Basic achieved parts of key technology of SST • General (global) technology of SST • Technology of SST framework and configuration • Technology of precise thermal control of SST • Technology of SST Attitude control • 1 meter Main Optical Telescope • Extreme Ultraviolet Telescope • Technology of On Board Data Processing by China Academy of Space Technology and Chinese Academy of Sciences and supported by China National Space Administration 空间太阳望远镜总体技术研究；空间太阳望远镜结构与机构技术研究；空间太阳望远镜精密温度控制技术研究；空间太阳望远镜高精度姿态控制技术研究；空间太阳望远镜主光学望远镜关键技术研究；空间太阳望远镜极紫外成像望远镜关键技术研究；空间太阳望远镜星载科学数据处理系统关键技术研究。

9. Suggested new payloads in SST • Hard X-ray telescope? • Coronagraph? • Extreme Ultraviolet + Soft X-ray Telescope（EUSXT）? • Spectro-Polarimeter or Fabry Perot system? • ?

10. Some suggestions for the payloads of SST • MOT: Main Optic Telescope (1 Meter) 0.1 , 2.8'×1.5' , 8 channels, key two lines Stokes parameters ~ 2×10 -4 • EUSXT: Extreme Ultraviolet and Soft-X-ray Telescope 0.5  , 8.5'×8.5' , 4 channels (19.5, 160nm) • WIC : White-light Inner-corona Coronagraph • HXI : Hard X-ray Imager • HWT: H and White Light Telescope 1 , 0.7°× 0.7°, Full disk • SIR: Solar & Interplanetary Radio Spectrometer 2-50 MHz, 0.1s resolution Summarized by Fang Cheng 2008/7/30 eclipse meeting

11. Next step of SST (2011-2015)—— Further research of SST according to the guidance of Chinese Space Project Plan etc. • Preparing to become the formal space project of Chinese Government in 2011 • The payloads for measurements of solar magnetic field etc. • The testing ground-base observations of SST • Ameliorating the global system of SST

13. Thank you for your attention!

15. Suggested spectral lines for measurements of magnetic field by 2-D Spectrographof SST Rayleigh limit of 1M optical telescope Absorption line Transfer profiles of birefrigent filters

16. 空间太阳望远镜研制团队组成 • 国家天文台 • 中国空间技术研究院 • 紫金山天文台 • 南京大学 • 长春光机所 • 等 —— 经过20年的努力，形成了良好的合作研究群体，完成空间太阳望远镜关键技术研究