In-mid 2015, China started the build-up of the third generation BeiDou system (BDS-3) in the global coverage constellation. The first BDS-3 satellite was launched 30 September 2015. As of March 2016, 4 BDS-3 in-orbit validation satellites have been launched. COUNT 4
QSN1 When did China begin constructing the third BeiDou system? ANS1 mid 2015 QSN2 What is the third BeiDou system called? ANS2 BDS-3 QSN3 When was the first BDS-3 satellite launched? ANS3 30 September 2015 QSN4 How many BDS-3 satellites have been launched? ANS4 4