GPS

GPS Constellation

Country: United States

Website: GPS Constellation

GPS (Global Positioning System) Constellation is a satellite-based navigation system that is developed and operated by the United States Department of Defense. The GPS constellation consists of a network of satellites orbiting the Earth, providing precise location and timing information to users worldwide. It became operational in 1978 and was made available for global use in 1994. GPS operates in the L-Band frequency and can provide real-time positioning accuracy in the centimeter range and long-term accuracy in the millimeter range. The constellation includes 31 satellites in orbit, transmitting signals on different frequencies to ensure accurate positioning information.


GPS Satellites - A list of all satellites in the GPS constellation.

Satellite Name
Launch DateSatellite Block
Navstar 82
Operational
January 19, 2023GPS Block IIIView Details
Navstar 81
Operational
June 17, 2021GPS Block IIIView Details
Navstar 78
Operational
August 22, 2019GPS Block IIIView Details
Navstar 77
Operational
December 23, 2018GPS Block IIIView Details
Navstar 76
Operational
February 05, 2016GPS Block IIFView Details
Navstar 75
Operational
October 31, 2015GPS Block IIFView Details
Navstar 74
Operational
July 15, 2015GPS Block IIFView Details
Navstar 73
Operational
March 25, 2015GPS Block IIFView Details
Navstar 72
Operational
October 29, 2014GPS Block IIFView Details
Navstar 71
Operational
August 02, 2014GPS Block IIFView Details
Navstar 70
Operational
May 17, 2014GPS Block IIFView Details
Navstar 69
Operational
February 21, 2014GPS Block IIFView Details
Navstar 68
Operational
May 15, 2013GPS Block IIFView Details
Navstar 67
Operational
October 04, 2012GPS Block IIFView Details
Navstar 66
Operational
July 16, 2011GPS Block IIFView Details
Navstar 65
Operational
May 28, 2010GPS Block IIFView Details
Navstar 64
Operational
August 17, 2009GPS Block IIRMView Details
Navstar 63
In Reserve
March 24, 2009GPS Block IIRMView Details
Navstar 62
Operational
March 15, 2008GPS Block IIRMView Details
Navstar 61
Operational
December 20, 2007GPS Block IIRMView Details
Navstar 60
Operational
October 17, 2007GPS Block IIRMView Details
Navstar 59
Operational
November 17, 2006GPS Block IIRMView Details
Navstar 58
Operational
September 25, 2006GPS Block IIRMView Details
Navstar 57
Operational
September 26, 2005GPS Block IIRMView Details
Navstar 56
Operational
November 06, 2004GPS Block IIRView Details
Navstar 55
Retired
June 23, 2004GPS Block IIRView Details
Navstar 54
Operational
March 20, 2004GPS Block IIRView Details
Navstar 53
Retired
December 21, 2003GPS Block IIRView Details
Navstar 52
Operational
March 31, 2003GPS Block IIRView Details
Navstar 51
Operational
January 29, 2003GPS Block IIRView Details
Navstar 50
On orbit spare
January 30, 2001GPS Block IIRView Details
Navstar 49
Retired
November 10, 2000GPS Block IIRView Details
Navstar 48
Operational
July 16, 2000GPS Block IIRView Details
Navstar 47
Operational
May 11, 2000GPS Block IIRView Details
Navstar 46
On orbit spare
October 07, 1999GPS Block IIRView Details
Navstar 38
Retired
November 06, 1997GPS Block IIAView Details
Navstar 43
Operational
July 23, 1997GPS Block IIRView Details
Navstar 2A-18
Retired
September 12, 1996GPS Block IIAView Details
Navstar 2A-17
Retired
July 16, 1996GPS Block IIAView Details
Navstar 2A-16
Retired
March 28, 1996GPS Block IIAView Details
Navstar 2A-15
Retired
March 10, 1994GPS Block IIAView Details
Navstar 2A-14
Retired
October 26, 1993GPS Block IIAView Details
Navstar 2A-13
Retired
August 30, 1993GPS Block IIAView Details
Navstar 2A-12
Retired
June 26, 1993GPS Block IIAView Details
Navstar 2A-11
Retired
May 13, 1993GPS Block IIAView Details
Navstar 2A-10
Retired
March 30, 1993GPS Block IIAView Details
Navstar 2A-09
Retired
February 03, 1993GPS Block IIAView Details
Navstar 2A-08
Retired
December 18, 1992GPS Block IIAView Details
Navstar 2A-07
Retired
November 22, 1992GPS Block IIAView Details
Navstar 2A-06
Retired
September 09, 1992GPS Block IIAView Details
Navstar 2A-05
Retired
July 07, 1992GPS Block IIAView Details
Navstar 2A-04
Retired
April 10, 1992GPS Block IIAView Details
Navstar 2A-03
Retired
February 23, 1992GPS Block IIAView Details
Navstar 2A-02
Retired
July 04, 1991GPS Block IIAView Details
Navstar 2A-01
Retired
November 26, 1990GPS Block IIAView Details
Navstar 2-09
Retired
October 01, 1990GPS Block IIView Details
Navstar 2-08
Retired
August 02, 1990GPS Block IIView Details
Navstar 2-07
Retired
March 26, 1990GPS Block IIView Details
Navstar 2-06
Retired
January 24, 1990GPS Block IIView Details
Navstar 2-05
Retired
December 11, 1989GPS Block IIView Details
Navstar 2-04
Retired
October 21, 1989GPS Block IIView Details
Navstar 2-03
Retired
August 18, 1989GPS Block IIView Details
Navstar 2-02
Retired
June 10, 1989GPS Block IIView Details
Navstar 2-01
Retired
February 14, 1989GPS Block IIView Details
Navstar 11
Retired
October 09, 1985GPS Block IView Details
Navstar 10
Retired
September 08, 1984GPS Block IView Details
Navstar 9
Retired
June 13, 1984GPS Block IView Details
Navstar 8
Retired
July 14, 1983GPS Block IView Details
Navstar 6
Retired
April 26, 1980GPS Block IView Details
Navstar 5
Retired
February 09, 1980GPS Block IView Details
Navstar 4
Retired
December 10, 1978GPS Block IView Details
Navstar 3
Retired
October 06, 1978GPS Block IView Details
Navstar 2
Retired
May 13, 1978GPS Block IView Details
Navstar 1
Retired
February 22, 1978GPS Block IView Details

GPS has enabled US and its allied forces to strike targets with pinpoint accuracy while reducing collateral damage. Additionally, GPS has brought significant benefits to over three billion civilian users worldwide in diverse applications such as road, rail, and marine navigation, precision agriculture, mining, oil exploration, environmental research, telecommunications, electronic data transfer, construction, recreation, and emergency response. The system is maintained by the US Air Force and provides precise global positioning, navigation, and timing services to users around the globe. The latest generation of GPS satellites offers improved accuracy through advanced atomic clocks and a longer design life, benefiting both military and civilian users. 

Furthermore, the GPS III constellation, managed by a new ground control system, promises triple the accuracy and eight times the anti-jamming capabilities compared to previous satellites, ensuring enhanced reliability, accuracy, security, and cyber protection for all users, military and civilian alike.