DSP  
Initial Operational Capability (IOC): 1970
Total Production: 23
Unitary Cost: USD$400 million
Also Known As: Defense Support Program
Origin: United States of America
Corporations: Northrop Grumman
Parent System: DSP
Initial Operational Capability (IOC): 1970
Total Production: 23
Total Cost: USD$8.8 billion
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Description: Defense Support Program (DSP) is a satellite constellation developed by TRW, now Northrop-Grumman, as the spaceborne segment of NORAD's Tactical Warning and Attack Assessment system since 1970. DSP satellites key element is its infrared sensor payload which detects and tracks ballistic missiles and also detects nuclear explosions and space launches. Since its inception TRW/Northrop-Grumman has been providing updates to the DSP spacecraft which has translated into lower procurement cost, extended service life and increased capabilities.

The first DSP launch occurred in 1970. The last of 23 DSP spacecraft was put into orbit in May 2005 by a Boeing Delta IV Evolved Expendable Launch Vehicle-Heavy (EELV-H). In the early 2000s DSP's infrared sensor proved suitable for providing early warning for natural disasters like volcanic eruptions and forest fires. As of early 2006, the US Air Force plans call for replacing DSP constellation with far more capable STSS, formerly SBIRS-low, and SBIRS-high constellations beginning in 2007.

DSP Applications


Artillery Systems GMD Block 2004

DSP Specifications

Performance
Orbit: 36,000 kilometer (22,374 mile)
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)

DSP News

There is 1 news
on 11 Nov 2007
Sunday, November 11, 2007US Air Force Delta IV Rocket Launches Final DSP Satellite

Operators & Related Equipment


OperatorsItems

Grand Total 231
 

DSP Spacecraft Listing


SerialCountry - Launch Rocket - SiteStatusLaunch DateOperationalRetired
DSP 23 Delta IV - Cape Canaveral Air Force Station10 Nov 2007--
DSP 19 Titan IVB - ?9 Apr 1999-31 Jul 2008
DSP 14 Titan IVB - ?14 Jun 19891989-

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