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25-m Radio Telescope
1-m Optical Telescope
Solar Telescope
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25-m Radio Telescope
 
The antenna has a primary mirror with 25 m in diameter and a 3 m secondary mirror.It operates at waves of 92 cm, 49 cm, 1.3 cm, 2.8 cm, 3.6/13 cm, 6 cm and 18/21 cm. Receivers are respectively mounted at the primary focus and the secondary focus. The antenna is located at 87°10.67' E and 43°28.27' N,with an elevation of 2080.5m.

Technical Data of the Antenna

Reflector Diameter

25 m

Number of Surface Elements (Panels)

352

Shape Accuracy of Surface

≤ 0.40 mm (RMS)

Focal Length in Prime Focus

7 m

Secondary Mirror Diameter (spin-hyperboloid-Reflector)

3 m

Angular Resolution (HPBW)

 at 21 cm wavelength (1.43 GHz)

 at 1.3 cm wavelength (22 GHz)

 

 35.2' (arc minutes)

 2.18' (arc minutes)

Azimuth Track Diameter

15 m

Setting Accuracy of Track

± 0.35 mm

Azimuth Range

±270°

Maximum Rotation Speed

AZ. 1o/s   EL. 0.5o/s

Pointing Accuracy

≤ 15" (RMS)

Power Output of the 4 Az.-El.Drives

15 kW each

Elevation Movement

from 5° to 88°

Geography Position

   Logitude

   Latitude

 

87°10.67' E 

43°28.27' N

ITRF2005 Cartesian Coordinates Position

 DOMES

  TechID

 EPOCH

 X(m)

 Y(m)

 Z(m)

 

21612S001

VLBI7330

2000 

228310.628

4631922.782

4367063.999

Altitude

2080.5 m

Construction Period

1991-1993

Commencement of Operation

October, 1994

Constructed by

CETC-NWIEE

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