The Global Positioning System (GPS) is a network of about 30 satellites orbiting the Earth at an altitude of 20,000 km.
There are 435 voting members in the House of Representatives.
house of representatives The U.S. House of Representatives has 435 members, elected for two year terms in single-seat constituencies. House of Representatives elections are held every two years on the first Tuesday after November 1 in even years, correlated with presidential elections.