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Status Report of Taiwan Two Meter Telescope. Yi Chou Graduate Institute of Astronomy National Central University. 2M Telescope Project. Project started in early 2006 Funding Ministry of Education:5500 project Telescope : ~2.6M USD National Science Council Instrument: ~1.3M USD

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status report of taiwan two meter telescope

Status Report of Taiwan Two Meter Telescope

Yi Chou

Graduate Institute of Astronomy

National Central University

2011兩岸天文儀器會議

2m telescope project
2M Telescope Project
  • Project started in early 2006
  • Funding
    • Ministry of Education:5500 project
      • Telescope : ~2.6M USD
    • National Science Council
      • Instrument: ~1.3M USD
    • NCU Foundation
      • Building, dome & Transportation : ~3.5M USD
    • Total: ~7.4 M USD

2011兩岸天文儀器會議

telescope
Telescope

2011兩岸天文儀器會議

2m telescope
2M Telescope

2011兩岸天文儀器會議

telescope manufacture
Telescope Manufacture
  • Nishimura Opt. Ltd. won the contract and started to design and build the telescope in early 2007.

2011兩岸天文儀器會議

telescope manufacture1
Telescope Manufacture

2011兩岸天文儀器會議

telescope design 10 2007
Telescope Design (10/2007)

2011兩岸天文儀器會議

primary mirror polishing 06 2008
Primary Mirror Polishing (06/2008)

2011兩岸天文儀器會議

primary mirror 02 2009
Primary Mirror (02/2009)

2011兩岸天文儀器會議

parts of telescope 02 2009
Parts of Telescope (02/2009)

2011兩岸天文儀器會議

taiwan two meter telescope 03 2010
Taiwan Two Meter Telescope (03/2010)

2011兩岸天文儀器會議

integration test 03 2010
Integration Test (03/2010)

2011兩岸天文儀器會議

2m in taiwan now in a warehouse
2M in Taiwan Now (in a Warehouse)

2011兩岸天文儀器會議

site and building
Site and Building

2011兩岸天文儀器會議

slide16

NCU

Mt Jade ~4,000 m

Lulin Observatory~2,860 m

Alisan

2011兩岸天文儀器會議

slide17

Lulin Observatory

40 cm

Telescope

LOT

1meter teelscope

Future

2M Telescope

EPA Lab

TAOS-A/B

Weather

Station

TAOS-C

NCKU ELF

TAOS-D

Taida

LELIS

基地台

2011兩岸天文儀器會議

環保署

sketch maps of 2m telescope and observatory
Sketch Maps of 2M Telescope and Observatory

Sketch Map of the 2m telescope and observatory

Imaginary view of the 2m Observatory

2011兩岸天文儀器會議

difficulties we met
Difficulties We Met ……
  • However, there is a new regulation in Taiwan that the mountain area above 1500 m was assigned as protected area and only limit buildings are allowed. Astronomical observatory was not included.
  • Thank to assistant from Chairman Wang of Legislative Yuan to coordinate government ministries, astronomical observatory was finally put into the list in late 2007.
  • The building permit was issued on 11/15/2008 from Chiyi county government.
  • A local company won the contract for the building and was ready to start the construction in May 2009 ……

2011兩岸天文儀器會議

difficulties we met1
Difficulties We Met ……
  • In May 2009, Environment Protection Administration (EPA) informed us the construction must be suspended because the 2M building is located inside an animal protection area.
    • Environmental impact assessment must be done in advanced.
    • In this animal protection area, four season’s animal inspection is essential.
    • The building permit was invalid
    • The building contract had to be rescinded
  • Environmental impact assessment was made from Oct 2009 to Nov 2010 and the report was approved by EPA in March 2011. The new budget was set and the construction will be started soon.

2011兩岸天文儀器會議

instrument
Instrument

2011兩岸天文儀器會議

instrument1
Instrument
  • The first generation instrument for 2M telescope is the Simultaneous Multi-color Imager.
  • This 4-color simultaneous imager consists of
    • Dichroic mirrors and filters
      • split the light into 4 bands: 552-689nm(r), 691-815nm(i), 815-915nm(z) and 967-1024nm(y)
    • higher QE CCD cameras
      • 3 sets of 1100-series cameras were purchased from Spectral Instruments Inc.,USA, within E2V back illuminated deep depletion CCDs for r,i,z bands
      • The other one (NCU-Cam1), with within fully depleted CCDfrom Hamamatsu photonics K.K., Japan. and Polycold cryo-cooler, is developed by NCU instrument team

2011兩岸天文儀器會議

4 color simultaneous imager
4-color Simultaneous Imager

2011兩岸天文儀器會議

4 color simultaneous imager1
4-color Simultaneous Imager

2011兩岸天文儀器會議

instrument lab at ncu
Instrument Lab at NCU
  • To make the multi-color imager for 2M telescope, as well as for future instrument developments, NCU set up an instrument lab in early 2009.
  • Key persons of NCU lab
    • Jason Wu: Electrical engineer
    • Duncun Chen: Project assistant
    • Azure Yang: Project assistant

2011兩岸天文儀器會議

instrument development
Instrument Development

2011兩岸天文儀器會議

three 1100 series cameras arrived
Three 1100-series Cameras Arrived

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a 1100 series camera tested with lot
A 1100-series Camera Tested with LOT

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lot si1100 first light image
LOT/SI1100 First light Image

2011兩岸天文儀器會議

lot ncucam 1 first light image
LOT/NCUcam-1 First Light Image

2014/6/5

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31

optical adopter design complete
Optical Adopter Design Complete

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optical adopter
Optical Adopter

2014/6/5

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33

summary
Summary
  • The manufacture of telescope has been completed and the telescope has shipped to Taiwan in 2010.
  • The environment impact assessment has been completed and the new budget has set. The construction will be started soon/
  • The 4 cameras, including the one we develop (NCUcam1), and the optical system for the 4-color simultaneous imager have been complete. The integration test cannot be done due to the delay of telescope dome construction.
    • We are now looking for suitable telescope that allows us to test instrument’s performance, or, furthermore, start scientific observations.

2011兩岸天文儀器會議

thank you
Thank You

2011兩岸天文儀器會議

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