STSS-ATRR

Space Tracking and Surveillance System Advanced Technology Risk Reduction
Also called USA 205

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General

Designation	34903 / 09023A
Launch date	5 May 2009
Country of origin	United States
Mission	Military: early warning
Perigee/Apogee	870 km
Inclination	98.9°
Period
Launch vehicle	Delta 2 #341

This is the first demonstrator of the Sbirs low program.

The STSS ATRR mission is a space-based sensor component of a layered Ballistic Missile Defense System (BMDS) to detect, track, and intercept ballistic missiles.

These STSS Demonstration satellites will support the BMDS test bed by detecting and tracking missiles in all phases of flight. The test bed will allow the assessment of the STSS system's capabilities and its ability to operate in concert with other parts of a multilayered missile defence architecture.

The satellites achieved full-course tracking of ballistic missiles.

sat-index articles

Technical data

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Specifications

Prime contractor	Northrop Grumman
Platform	SA-200
Mass at launch	approx 2000 kg
Dry mass
Dimension
Solar array
Stabilization
DC power
Design lifetime

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