advanced orbiting astronomical observatory
advanced orbiting solar observatory
aerodynamic observatory
Akesu Meteorological Observatory
Akesu Metorological Observatory
Aletai Meteorological Observatory
Alt Meteorological Observatory
Altai Meteorological Observatory
Altay Meteorological Observatory
Anhui Fuyang Meteorological Observatory
Anhui Meteorological Observatory
Anhui Meteorology Observatory
Anhui Provincial Meteorological Observatory
ASTRONOMICAL OBSERVATORY
astrophysicl observatory
Bayinguoleng District Meteorological Observatory
Bazhou Meteorological Observatory
Beijing Ancient Observatory