Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.195517E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T00:34:52+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 67507
    NORAD ID 67507
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-36521
    Time of Closest Approach 2026-10-22T06:39:04+0000
    Collision Probability (Pc) 4.195517E-5
    Conjunction Distance (km) 0.866 km
    Relative Speed (km/s) 13.803 km/s
    Conjunction Risk Parameters R (Radial): -0.28 | I (In-track): -0.351 | C (Cross-track): -0.74
    Collision Risk Index (CRI) 0.67
    X Position (km) 5307.564 5308.285
    Position Y (km) -2543.018 -2542.603
    Position Z (km) -3530.097 -3529.857
    Velocity X (km/s) 3.014 0.962
    Velocity Y (km/s) -2.668 6.745
    Velocity Z (km/s) 6.471 -3.413

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-36521
    Semimajor Axis (a) 6860.775 km 6861.154 km
    Eccentricity (e) 0.000828 0.000189
    Inclination (i) 97.1353° 42.9996°
    RAAN 328.4030° 128.2511°
    Perigee Argument 21.1011° 277.5372°
    Mean Anomaly (M) 339.0569° 82.5266°
    Apogee 488.316 km 484.312 km
    Perigee 476.960 km 481.722 km
    Orbit Epoch 2026-10-20T12:20:39+0000 2026-10-19T19:35:33+0000

    YAOGAN 21 & STARLINK-36521 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-36521 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-36521 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-36521 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36521Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36521Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data