It has been stressed time and time again: sensors are the backbone of the missile defense system. The next step in strengthening that backbone is nearing operation.

The Air Force received a state-of-the-art missile-tracking satellite from Northrop Grumman this week. The satellite, part of the Space Tracking and Surveillance System (STSS), will be put into orbit later this year.

STSS is an essential aspect of any early missile intercepts. Though boost phase intercepting has been taken off the table for now, the concept of assent phase intercept has been put on. Assent phase aims to intercept missiles as soon after they leave powered flight as possible.

Newer and better sensors systems such as STSS will allow for earlier detection and tracking of missiles. The early they are tracked, the early an intercept can occur. With Iran developing solid fuel missiles, the development of early detection technology must continue to be a priority.

STSS will be capable of tracking satellites during midcourse flight, something no other orbiting system is currently capable of accomplishing.

In hearings during the current session of Congress, Missile Defense Agency Director Lt. Gen. Patrick O’Reilly and other witnesses stressed the importance of the sensor systems being deployed.

So the delivery and the upcoming deployment of this satellite are positive steps on our development of a comprehensive missile defense system.

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