The Russian space agency said only 39 of the country’s 99 satellites are fully functional, the RIA Novosti news agency reported.
Roskosmos compiled a report analyzing Russia’s orbiting space satellites and recommending ways to preserve them.
Some 60 satellites already have passed scheduled expiration dates for active service, the report found.
The news agency reported Roskosmos said underfunding a program to deploy the navigational GLONASS by 2,846 million rubles ($102 million) has resulted in launch delays.
GLONASS, or Global Navigation Satellite System, is based on active satellites that continuously transmit coded signals on two frequency bands to pinpoint position and velocity on Earth in real time.
A total of 849 satellites currently are operating in space, including those from Russia, RIA Novosti said.
