Space Tracking and Surveillance System (STSS)
Abstract
Two Space Tracking and Surveillance System (STSS) satellites provided a low earth orbit sensor capability with visible and infrared sensors for integrated testing with other Missile Defense System elements. STSS demonstrated space-based capabilities including persistent tracking and integrated Missile Defense System discrimination improvements. These two satellites provided valuable risk reduction for acquisition, tracking, complex scenes, and discrimination functionality to include stereo data fusion, cuing radars over-the-horizon, and over-the-horizon fire control. The on-orbit sensors collected invaluable background, scene, and target signature data to support the Missile Defense Agency (MDA) space-layer and other weapon sensor development trade studies. STSS activities provided information for integration of space-based missile tracking (midcourse phase); remote sensor and weapons cuing via Command and Control, Battle Management and Communications (C2BMC); features and discrimination; and hit/impact point assessments. STSS enabled early capability assessment to address Warfighter need for highly available early missile tracking from space, providing an operationally suitable means of global persistent surveillance and engagement. Lessons learned and data gathered from the STSS demonstration satellites program provide valuable information for MDA space-layer modeling and simulation activities in assessing the capability provided by Overhead Persistent Infrared sensors. Based on annual health and status assessment of the STSS satellites, the STSS satellites were passivated in FY 2022. This decision enabled a safe conclusion and continued stewardship of space for the extremely successful STSS program which demonstrated the necessity of on-orbit detection and tracking capability for the Missile Defense System.
Document Details
- Document Type
- Project
- Publication Date
- Oct 01, 2024
- Source ID
- MD12_1206893C_4_0400_PB_2024
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