As of August 2023[update], 145 GLONASS navigation satellites have been launched, of which 133 reached the correct orbit and 24 are currently operational.
GC number (Ground Control number, Russian: системный номер, номер по наземному комплексу управления) is the spacecraft number in almanac.
Some catalogs mistakenly used GC numbers for historical identification.
GC numbers refer to currently active satellites.
GC numbers in parentheses refer to non-operational satellites under testing or in reserve.Refer to Official GLONASS web page for the most up-to-date information.