"Relay commands and data. Provide secure communication links, command relay to spacecraft, and communication with ISS. Time correction for GLONASS."
New generation of tracking and commmunication satellites.
New generation of tracking and commmunication satellites.
"Relay commands and data. Provide secure communication links, command relay to spacecraft, and communication with ISS. Time correction for GLONASS."
"Seven S-band and Ku-band channels. The 1,148-kg spacecraft will provide TV and data communications links between the International Space Station and the ground, as well as orbital control of spacecraft in low Earth orbit."
"Tracking and communications with space shuttle, other missions."
"Tracking and communications with space shuttle, other missions. In storage."
"Tracking and communications with space shuttle, other missions; not fully functional."