1. Suijian Xue ( 薛随建 ) National Astronomical Observatories, Chinese Academy of Sciences 2010-05-10 @ JEJU, Korea Regional Report Astronomical Activities Update in the Core Observatories, China Mainland

2. CAS core observatories Changchun Observatory (CAO) Urumqi Observatory (UAO) Yunnan Observatory (YNAO) Headquarters National Astronomical Observatories (NAOC) Nanjing Institute of Astronomical Optics and Technology (NIAOT ) Purple Mountain Observatory (PMO) Shanghai Observatory (SHAO)

3. 7 Delingha Urumqi YNAO Changchun NAOC Xinglong (LAMOST) Miyun HuaiRou NIAOT Urastai FAST Gaomeigu Distribution of the Observatories/Stations/Institutes of NAOC PMO SHAO

4. - Ground － Based Facilities Status & Progress of FAST, 21CMA  Current and Ongoing Major Programs & Facilities

5. Five-hundred-meter Aperture Spherical Telescope - FAST Unique Karst depression as the site Active main reflector Cable - parallel robot feed support Three outstanding aspects FAST sciences Neutral Hydrogen line (HI) survey Pulsar research Joining VLBI network Molecular lines Search for Extraterrestrial Intelligence (SETI)

6. Spherical reflector ： Radius ～ 300m, Aperture ～ 500m, Opening angle 110~120° Illuminated aperture ： D ill =300m Focal ratio ： f/D =0.467 Sky coverage ： zenith angle 40°(up to 60°with efficiency loss) tracking hours 0~6h Frequency ： 70M ~ 3 GHz （ up to 8GHz in future upgrading ） Sensitivity (L-Band) ： A/T~2000, T~25 K Resolution (L-Band) ： 2.9′ Multi-beam (L-Band) ： 19, beam number of future FPA >100 Slewing ： <10min Pointing accuracy ： 8″ General Technical Specification

7. 1994.7 Proposal initialized – 15 yrs ago 2006.3 International review and advisory conference Chaired by Fred Lo and Shuhua Ye 2007.7 Funding Proposal finally has been approved by NDRC 2008.10 Feasibility Report approved by NDRC 2008.12 Preliminary design reviewed by CAS and GuiZhou government 2008.12 Foundation laid 2015.1 First light FAST events

8. FAST progress Exploration in depression rock-soil samples from ground

9. FAST progress alu minum Reflector elements and prototyping triangular panels, side ~11m, manufacturing error ~ 2.0 mm Trilateral collaboration on the Multi-horn 19- beam receiver

10. Physical Area: 50544m 2 Working Frequency: 70-200MHz 10287 antennas @ 4x6 km arms 21 Centimeter Array (21CMA) Goal: Search for the Lights of First Stars at Epoch of Reionization Chief Scientist: Prof. Xiangping WU wxp@bao.ac.cn

11. E W SN control room 21CMA Layout 81 pods along two perpendicular arms (6km+4km) 1 pod=127 antennas Baselines: 3240 Freq channels: 4096 Total data size: 4 terabytes / day

12. 10 o Radio Sky Seen with 21CMA 100 sqr deg around NCP region

13. Goal: catch EOR signal 10000 times below foreground VHF Sky@21CMAResidual Background

14. 14 Chinese Spectral Radioheliograph (CSRH) a new instrument capable of true imaging spectroscopy, with high temporal, spatial, and spectral resolution Specifications Freq Range 0.4–15 GHz Spatial Res.1.3”– 50” Array 40  4.5m ＋ 60  2m Max baseline 3 km Field of view 0.6  – 7  Site: Inner Mongolia

15. 05/07/2010

16.  By April 2010 ， 5-sets of antennas, feeds, LNAs, optic Transmitter/ Receivers, monitoring sub-system, analogous receivers, digital correlation receivers assembled at Mingantu Observatory, ready for 5-element test  For CSRH, radio quiet zone protection has been established  CSRH-I (400MHz-2GHz) in 2008-2010  CSRH-II (2-15 GHz) in 2011-2013