Space Tracking and Surveillance System
Abstract
The two Space Tracking and Surveillance System (STSS) satellites launched in 2009 provided an on-orbit capability to validate remote sensor fire control integration to inform design and operation of the Missile Defense Agency (MDA) space-layer capabilities. MDA used STSS data to characterize contribution of space data into the Missile Defense System and to provide sensor measurements and background data supporting trade studies and analyses for MDA space-layer options for both Homeland and Regional Defense. STSS provided risk reduction for MDA space capabilities, models, algorithms, interface definitions, communications architectures, and performance across threat object acquisition, tracking, complex target signatures, discrimination, and multi-mission support. STSS also informs the Missile Defense System Concept of Operations, timelines, and performance requirements for remote space sensor cuing for ballistic missile engagements, expanding battle space for weapon systems such as Aegis Ballistic Missile Defense (BMD). The STSS program demonstrated the functions and interfaces required for space data delivery to the Missile Defense System, validating the data quality necessary for interceptors to launch and/or engage on STSS sensor data. The two STSS satellites were operated from the ground station processing center at the Missile Defense Space Center (MDSC). The STSS satellites demonstrated MDA space-layer capabilities and reduced risk for future systems (e.g., Hypersonic and Ballistic Tracking Space Sensor) by viewing high-value Targets of Opportunity and participating in Missile Defense System flight tests. Though the STSS satellites operated beyond their life expectancy, MDA continued STSS operations due to the continued contributions to the Missile Defense System mission. 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
- R2 Budgetary Justification
- Publication Date
- Oct 01, 2024
- Source ID
- 1206893C_4_0400_PB_2024
- Change Summary Explanation
- N/A
- Service Agency Name
- Missile Defense Agency
Entities
Organizations
- Missile Defense Agency
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