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    Space Conjunction Data Service (SCDS)

    Basic Info
    Advanced Filters
    • Probability Desc
    • TCA Asc
    • Miss Distance Desc
    • Miss Distance Asc

    无数据

    AOE Conjunction Data International Conjunction Data Total 0 records
    Conjunction data in this service is generated through a preliminary screening process based on SGP4 (Simplified General Perturbations Model 4) orbit propagation. Space object ephemerides are propagated using publicly available orbital elements to identify potential close-approach events and produce candidate Conjunction Data Messages (CDMs).
    This dataset is provided as a rapid screening product for preliminary conjunction assessment, supporting early detection and prioritization of potential close-approach events. It serves as upstream input for high-precision orbit determination (OD), covariance analysis, and refined collision probability (Pc) evaluation.
    Data Production Rules
    Minimum miss distance ≤ 3 km, latest approach time ≤ 72 hours
    Data Production Rules
    TCA ≤ 72 hours Overall Miss Distance ≤ 3 km
    Collision Probability Levels (1-5)
    ① Extreme > 10⁻³ ② High 10⁻³ ~ 10⁻⁴ ③ Medium 10⁻⁴ ~ 10⁻⁵ ④ Low 10⁻⁵ ~ 10⁻⁶ ⑤ Minimal < 10⁻⁶
    Miss Distance Levels (1-5)
    ① Extremely Close < 0.02 km ② Close 0.02 ~ 0.1 km ③ Medium 0.1 ~ 0.3 km ④ Long 0.3 ~ 1 km ⑤ Extremely Long ≥ 1 km
    No data found

    No data found

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