This list was complete as of 30 July 1997.
Site Name Location Total Ralph Norton ID Riga Riga, Latvia 358 177 181 1884 Herstmonceux Royal Greenwich Obs., Great Britain 277 153 124 7840 Metsahovi Kirkkonummi, Finland 110 108 2 7805 Potsdam Potsdam, Germany 105 65 40 7836 Greenbelt GGAO, GSFC, Greenbelt, MD 104 104 0 7105 Changchun Changchun, Peoples Republic of China 96 96 0 7237 Yarragadee Yarragadee, Australia 90 86 4 7090 Monument Peak Mount Laguna, CA 81 68 13 7110 McDonald McDonald Observatory, Fort Davis, TX 67 66 1 7080 Quincy Quincy, CA 52 42 10 7109 Wettzell Wettzell, Germany 50 30 20 8834 San Fernando San Fernando, Spain 33 11 22 7824 Haleakala Lure Obs., Mount Haleakala, Maui, HI 30 30 0 7210 Borowiec Borowiec, Poland 30 28 2 7811 Maidanak Maidanak, Uzbekistan 28 16 12 1864 Grasse Grasse, France 26 14 12 7835 Graz Graz, Austria 22 22 0 7839 Albuquerque Starfire Optical Range, Albuquerque 20 10 10 7884 Arequipa Arequipa, Peru 15 15 0 7403 Beijing Beijing, Peoples Republic of China 12 9 3 7249 Greenbelt GGAO, GSFC, Greenbelt, MD 8 7 1 7918 Simeiz Simeiz, Ukraine 5 0 5 1873 Orroral Orroral Valley, Australia 5 5 0 7843 Riga Riga, Latvia 3 3 0 1885 Katzively Katzively, Crimea, Ukraine 7 3 4 1893 Cagliari Cagliari, Italy 2 2 0 7548 Tokyo Tokyo, Japan 1 1 0 7308© 1996, Naval Research Laboratory