Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.548521E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T06:24:22+0800
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    1 Object 1

    AOE ID 40143
    NORAD ID 40143
    Object Type PAYLOAD
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59616
    NORAD ID 59616
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-31768
    Time of Closest Approach 2026-10-24T23:21:32+0000
    Collision Probability (Pc) 1.548521E-6
    Conjunction Distance (km) 2.638 km
    Relative Speed (km/s) 13.961 km/s
    Conjunction Risk Parameters R (Radial): 2.379 | I (In-track): -0.46 | C (Cross-track): 1.044
    Collision Risk Index (CRI) 0.39
    X Position (km) 5198.141 5199.683
    Position Y (km) -3135.181 -3137.242
    Position Z (km) 3183.589 3184.161
    Velocity X (km/s) -3.563 4.968
    Velocity Y (km/s) 0.9 4.359
    Velocity Z (km/s) 6.687 -3.809

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-31768
    Semimajor Axis (a) 6860.643 km 6861.160 km
    Eccentricity (e) 0.000785 0.000203
    Inclination (i) 97.1348° 43.0055°
    RAAN 332.0392° 188.0712°
    Perigee Argument 8.0350° 230.4148°
    Mean Anomaly (M) 352.1015° 129.6525°
    Apogee 487.891 km 484.418 km
    Perigee 477.121 km 481.628 km
    Orbit Epoch 2026-10-24T07:31:05+0000 2026-10-24T02:21:42+0000

    YAOGAN 21 & STARLINK-31768 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-31768 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-31768 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-31768 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31768Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31768Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data