Cosmos 2464 (Glonass 736), Cosmos 2465 (Glonass 737), and Cosmos 2466 (Glonass 738) are the latest to join the Russian fleet of Glonass navigational satellites. They were launched from Baikonur on 02 September 2010 at 00:53 UT by a Proton rocket. Each satellite weighed about 1360 kg at launch, including maneuvering fuel to maintain the craft's orientation in space. They will broadcast navigation signals to military and civilian users, reaching ground receivers across a swath of Earth stretching nearly from pole to pole. These spacecraft joined the Glonass constellation that consists of 21 operational satellites with two more satellites which are considered spares. In 2010 there are expected to be 27 Glonass satellites of which 24 will be operational.