You are here: Home USNO Precise Time GPS Current Gps Constellation

Current Gps Constellation

Satellites in operation

                                       satellite

  • The current GPS constellation consists of 31 Block II/IIA/IIR/IIR-M/IIF satellites.
  • GPS constellation and individual satellite status is updated every working day.
  • Block I are referred to as the original concept validation satellites developed by Rockwell International and reflect various stages of system development.
  • The first Block II satellite was launched in February 1989; the most recent Block IIF satellite was launched on May 15, 2013.
  •  

    USNO Master Clock Time
    Javascript must be Enabled