Northrop Grumman Receives $21.8M Contract to Support the STSS-D

In March of 2015, Northrop Grumman received a USD $21.8 million contract modification to support the Space Tracking and Surveillance System (STSS-D), bringing the total cumulative contract value to USD $2.39 billion. The STSS-D constellation consists of two satellites, built by Northrop Grumman, orbiting at 1350 km, 58 degree inclination, with 120 minute orbital period.

These satellites demonstrate capabilities required for birth-to-death tracking of ballistic missiles and other cold objects in space. They use sensors that are capable of detecting visible and infrared light and serves as the experimental space layer of the Ballistic Missile Defense System (BMDS). The objective of the mission is to provide accurate tracks of midcourse re-entry vehicles to the shooter. Boosting targets are detected by an acquisition sensor and targets are autonomously handed off to track sensor. According to the Northrop Grumman website, using sensors capable of measuring infrared radiation from the vantage point of space, the satellites have demonstrated their ability to detect missile launches, track missiles from boost into midcourse and communicate with missile defense command and control systems. Both satellites fly and work in tandem as a risk-reduction mission by the U.S. Missile Defense Agency (MDA), paving the way for an operational constellation.

Headquartered in West Falls Church, Virginia, the Northrop Grumman Corporation is an American global aerospace and defense technology company that produces aircraft carriers, military aircrafts and vessels, missile defense systems, satellites, and information technology. It was formed in 1994 when Northrop purchased Grumman. It is a leading global security company providing innovative systems, products and solutions in unmanned systems, cyber, C4ISR, and logistics and modernization to government and commercial customers worldwide. In 2010, it was the fourth-largest defense contractor in the world and in 2011 ranked number 72 of the Fortune 500 list of the largest corporations in America.

The company employs over 68,000 people worldwide and in 2012 reported revenues of USD$25 billion. Via our proprietary website ASAP NSN Parts, ASAP Semiconductor is a leading supplier of Northrop Grumman products. Prospective customers can browse our inclusive inventory of hard-to-find obsolete and current Northrop Grumman parts at If you are interested in a part, please feel free to contact our knowledgeable sales staff at or 1-714-705-4780 for a quote.


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