There are 10 images added between 20 November 2006 and 4 April 2009
1  2  
GPS Block IIR  
Initial Operational Capability (IOC): 1996
Total Production: 21
Also Known As: GPS IIR-M
Origin: United States of America
Corporations: Lockheed Martin
Parent System: NAVSTAR
Initial Operational Capability (IOC): 1978
Total Production: 80
Total Cost: USD$7.6 billion
Family Members: GPS Block I, GPS Block II, GPS Block IIF and GPS Block III
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Description: The GPS satellites developed under the NAVSTAR program allows any properly equipped user to determine precise time, velocity and worldwide latitude, longitude and altitude to within a few meters. Originally was designed to be an accurate guidance and navigation tool for the military services but it has been adopted by civil and commercial customers for transportation, surveying and rescue operations.
The first GPS Block I spacecraft was put into orbit on February 22, 1978. In the past, the GPS constellation spacecrafts fluctuated from 2-18 to 21 but currently the GPS constellation owned by the United States Air Force consists of 27 satellites (24+3 spares). As of 2004, the US Air Force GPS constellation consists of six planes, each one containing at least four satellites operating 24/7. Redundant satellites are being launched as spares to counterbalance attrition.
The GPS Block IIR is an improved version of GPS Block II spacecraft with an automated operation mode independent of the ground control segment. The spherical error probable was cut to 7 meters, the satellite features re-programmable micro-processors and civil/commercial signal was added. Lockheed-Martin Block IIR satellites were launched beginning in 1996 and continuing through 2004.
On June 23, 2004, the US Air Force launched successfully the GPS IIR-12 spacecraft aboard a Delta II launch system joining a constellation of 28 operational GPS satellites. GPS IIR-12 is the 11th GPS IIR satellite put into orbit successfully. GPS IIR-13 was put into orbit November 6 2004 totaling 30 satellites on orbit.
Lockheed-Martin is developing the GPS IIR-M upgrade that will incorporate two new military signals for enhanced accuracy and a second civil signal on a different frequency to eight existing GPS IIR spacecraft already built and held in storage. In addition, the modernized series will offer a modernized antenna panel that provides increased signal power to receivers on the ground, enhanced encryption and anti-jamming capabilities for the military.
The first upgraded GPS IIR spacecraft, designated GPS IIR-M1 or GPS IIR-14 (M), was launched by a Delta II rocket on 25 September 2005 at Cape Canaveral Air Force Station, Florida. Lockheed Martin and the US Air Force cleared the GPS IIR-14 (M) delivering civilian and military signals for operational use on December 19, 2005. The GPS IIR-15(M) was launched successfully by a Delta II rocket on 25 September 2006 from Cape Canaveral Air Force Station, Florida.

GPS Block IIR Specifications

Dimensions
Height: 1,900 millimeter (6.23 foot)
Length: 1,930 millimeter (6.33 foot)
Width: 1.52 meter (4.99 foot)
Performance
Orbit: 20,200 kilometer (12,554 mile)
Positioning Accuracy: 7 meter
Time
Service Life: 10 year
Weight
Weight: 1,075 kilogram (2,370 pound)
CEP: Circular Error Probable
Meters (m)   Kilometers (km)   Nautic Miles (nm)   Inch (in)   Yard (yd)   Foot (ft)   Millimeter (mm)
Pound (lb)   Kilogram (kg)   kN (KiloNewton)   Ton (t)
Meters per Second (mps)   Kilometers per Hour (kph)   Knot (kt)   Miles per Hour (mph)
Liter (l)   Galon (gl)
Year (yr)   Minutes (min)   Second (sec)
Shaft-Horse-Power (shp)

GPS Block IIR News

There are 15 news between
31 Jan 2006 and 23 Aug 2014
1  2  
Saturday, August 23, 2014First Two Fully Operational Galileo Satellites Fail to Reach Intended Orbit
Friday, February 26, 2010Raytheon to Develop Next-Generation GPS Control Segment
Monday, April 7, 2008GPS IIR-19M Satellite Begins Operations
Saturday, March 15, 2008US Air Force 6th Modernized GPS Satellite Successfully Launched from Cape Canaveral
Tuesday, February 26, 2008Boeing GPS Ground Control System Keeps Navigation Satellites Operational
Friday, December 21, 2007Delta II Rocket with GPS Block IIR-M Payload Successfully Launches
Monday, November 26, 2007Raytheon to Design Next GPS Control Segment for Precision Navigation and Timing
Monday, November 5, 2007GPS IIR-17M Spacecraft Declared Operational
Wednesday, October 17, 2007US Air Force Launches Fourth GPS Block IIR-M Satellite
Monday, July 23, 2007First GPS Block IIR Satellite Marks 10 Years in Service

Operators & Related Equipment


OperatorsItems
United States of America21
YearHoldings
2014157 IIR and 8 IIR-M
Dec 20101912 IIR and 7 IIR-M

Grand Total 211
 

GPS Block IIR Spacecraft Listing


SerialCountry - Launch Rocket - SiteStatusLaunch DateOperationalRetired
GPS IIR-16M Delta II - Cape Canaveral Air Force Station17 Nov 200619 Dec 2006-
GPS IIR-11 Delta II - Cape Canaveral Air Force Station2003--
GPS IIR-10 Delta II - Cape Canaveral Air Force Station2003--
GPS IIR-9 Delta II - Cape Canaveral Air Force Station2002--
GPS IIR-15M Delta II - Cape Canaveral Air Force Station25 Sep 2006--
GPS IIR-14M Delta II - Cape Canaveral Air Force Station25 Sep 20052005-
GPS IIR-17M Delta II - Cape Canaveral Air Force Station17 Oct 20075 Nov 2007-
GPS IIR-18M Delta II - Cape Canaveral Air Force Station21 Dec 200716 Jan 2008-
GPS IIR-19M Delta II - Cape Canaveral Air Force Station15 Mar 20087 Apr 2008-
GPS IIR-20M Delta II - Cape Canaveral Air Force Station24 Mar 2009--
GPS IIR-21M Delta II - Cape Canaveral Air Force Station17 Aug 20093 Sep 2009-
GPS IIR-12 Delta II - Cape Canaveral Air Force Station2004--
GPS IIR-13 Delta II - Cape Canaveral Air Force Station2004--
GPS IIR-8 Delta II - Cape Canaveral Air Force Station2002--
GPS IIR-7 Delta II - Cape Canaveral Air Force Station30 Jan 200115 Feb 2001-
GPS IIR-6 Delta II - Cape Canaveral Air Force Station2001--
GPS IIR-5 Delta II - Cape Canaveral Air Force Station2000--
GPS IIR-4 Delta II - Cape Canaveral Air Force Station1999--
GPS IIR-3 Delta II - Cape Canaveral Air Force Station1998--
GPS IIR-2 Delta II - Cape Canaveral Air Force Station1997--
GPS IIR-1 Delta II - Cape Canaveral Air Force Station1996--

GPS Block IIR Links & Resources

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