# WIA-DEF-012-space-surveillance PHASE 1: Foundation **弘益人間** - Benefit All Humanity ## Phase 1 Overview: Core Sensor Infrastructure (Months 1-3) ### Objective Establish foundational space surveillance sensor network, develop orbit determination algorithms, and create initial space object catalog. Deploy primary radar and optical tracking systems for comprehensive space domain awareness. ## Key Deliverables ### 1. Ground-Based Radar Systems - **S-Band Phased Array Radar**: Primary detection system capable of tracking 1000+ objects simultaneously - **X-Band Tracking Radar**: High-precision tracking for orbit determination with <50m accuracy - **Radar Control Software**: Automated tasking and scheduling system for optimal coverage - **Signal Processing Pipeline**: Real-time detection and track correlation algorithms - **Calibration Systems**: Regular calibration against known objects for accuracy validation ### 2. Optical Telescope Network - **Wide-Field Survey Telescopes**: 0.5-1.0m aperture systems for GEO belt surveillance - **Narrow-Field Tracking Telescopes**: High-resolution systems for object characterization - **Automated Observation Scheduling**: AI-driven tasking based on priority and weather - **Image Processing**: Automated astrometry and photometry for orbit determination - **Weather Integration**: Real-time cloud cover and atmospheric seeing predictions ### 3. Data Processing Infrastructure - **Observation Database**: Petabyte-scale storage for sensor measurements and derived products - **Orbit Determination**: High-performance computing for batch least squares and Kalman filtering - **Catalog Maintenance**: Automated association of observations to existing catalog objects - **Conjunction Screening**: Daily processing of all conjunction pairs with automated alerts - **Archive Systems**: Long-term storage of historical observations and orbital elements ### 4. Initial Space Object Catalog - **Active Satellites**: Complete tracking of 5,000+ operational spacecraft - **Rocket Bodies**: Monitoring of spent launch vehicle stages in all orbits - **Debris Objects**: Detection and cataloging of fragments >10cm in LEO - **Object Classification**: Automated determination of object type based on orbital characteristics - **Metadata Management**: Comprehensive database of launch data, ownership, and purpose ### 5. Communications and Command - **Sensor Network**: Secure communications between distributed radar and optical sites - **Data Distribution**: Real-time streaming of observations to processing centers - **Command and Control**: Centralized tasking and sensor health monitoring - **Alert Systems**: Automated notifications for critical events and anomalies - **International Links**: Data exchange protocols with allied SSA networks ## Technical Implementation ### Radar System Specifications ```yaml S-Band Phased Array: Frequency: 2.8-3.1 GHz Peak Power: 2 MW Antenna Gain: 40 dBi Beam Steering: ±60° electronic scan Detection Range: LEO (400 km): 10 cm objects MEO (10,000 km): 50 cm objects GEO (36,000 km): 1 m objects Track Capacity: 1,000+ simultaneous Update Rate: 1 Hz per track X-Band Tracking Radar: Frequency: 8.5-10.5 GHz Peak Power: 500 kW Antenna: 10m parabolic dish Pointing Accuracy: 0.01° Range Accuracy: 10 m Range Rate Accuracy: 1 cm/s Tracking Mode: Monopulse tracking Data Rate: 10 Hz measurements ``` ### Optical Telescope Specifications ```yaml Wide-Field Survey: Aperture: 1.0 m Field of View: 2.5° x 2.5° Detector: 16k x 16k CCD Limiting Magnitude: +20 Cadence: 30-second exposures Coverage: Full GEO belt every 2 hours Weather Constraints: <50% cloud cover Tracking Telescope: Aperture: 1.5 m Field of View: 0.5° x 0.5° Detector: Low-read-noise CCD Limiting Magnitude: +22 Tracking Rate: Sidereal to 15°/sec Photometry: Sub-magnitude accuracy Spectrometry: R=100-1000 capability ``` ### Orbit Determination Architecture ``` ┌──────────────────────────────┐ │ Sensor Observations │ │ - Radar: Range, Range-Rate │ │ - Optical: RA/Dec, Magnitude│ └──────────┬───────────────────┘ │ ▼ ┌──────────────────────────────┐ │ Observation Processing │ │ - Quality Check │ │ - Coordinate Transform │ │ - Bias Correction │ └──────────┬───────────────────┘ │ ▼ ┌──────────────────────────────┐ │ Orbit Determination │ │ - Initial Orbit Estimate │ │ - Batch Least Squares │ │ - Extended Kalman Filter │ │ - Perturbation Modeling │ └──────────┬───────────────────┘ │ ▼ ┌──────────────────────────────┐ │ Catalog Update │ │ - Association Logic │ │ - New Object Detection │ │ - Breakup Identification │ │ - Maneuver Detection │ └──────────┬───────────────────┘ │ ▼ ┌──────────────────────────────┐ │ Product Generation │ │ - TLE (Two-Line Elements) │ │ - State Vectors │ │ - Covariance Matrices │ │ - Conjunction Data Messages │ └──────────────────────────────┘ ``` ## Performance Targets ### Detection Capabilities - **LEO Coverage**: 95% of objects >10cm tracked daily - **GEO Coverage**: 100% of objects >1m cataloged - **Deep Space**: Detection capability to lunar distance - **New Launches**: All new launches detected within 6 hours - **Breakup Events**: Detection and cataloging within 24 hours ### Tracking Accuracy - **Position Accuracy (LEO)**: <100m radial, <200m in-track - **Position Accuracy (GEO)**: <1km cross-track and radial - **Velocity Accuracy**: <1 m/s for all orbital regimes - **Orbit Prediction**: <5km error after 7 days for LEO - **Update Frequency**: Daily orbit updates for all tracked objects ### Conjunction Assessment - **Screening Frequency**: All satellites checked daily - **Prediction Window**: 7 days forward prediction - **Miss Distance Threshold**: <1km for alerts, <100m for emergency - **False Positive Rate**: <5% of conjunction predictions - **Alert Latency**: <15 minutes from detection to notification ## Success Criteria ### System Deployment ✓ Primary S-band and X-band radars operational ✓ Optical telescope network commissioned and collecting data ✓ Data processing pipeline handling 1M+ observations per day ✓ Initial catalog contains 20,000+ tracked objects ✓ Sensor network achieving 95% uptime ### Performance Validation ✓ Detection capabilities meet or exceed design specifications ✓ Orbit accuracy validated against GPS-equipped satellites ✓ Conjunction predictions verified against historical events ✓ No undetected satellite collisions or major breakups ✓ Independent assessment confirms system readiness ### Operational Readiness - 24/7 operations center staffed and functioning - Standard operating procedures documented and tested - Emergency response protocols validated - Analyst training program completed - Stakeholder satisfaction with initial products and services --- © 2025 SmileStory Inc. / WIA | 弘益人間