The aperture of the coelostat mirror is 460 mm. The objective mirror, 330 mm in diameter, has primary focal length of 21 m and Cassegrain focal length of 40 m, corresponding solar image with diameter 200 mm and 373 mm respectively.

• 塔高约21m,定天镜口径460mm,成象镜口径330mm,主焦距21m,卡式焦距40m,相应的太阳像直径分别为200mm和373mm。