Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.166574E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T21:15:19+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 57144
    NORAD ID 57144
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 21 STARLINK-5150
    Time of Closest Approach 2026-10-31T18:36:49+0000
    Collision Probability (Pc) 1.166574E-5
    Conjunction Distance (km) 1.116 km
    Relative Speed (km/s) 7.685 km/s
    Conjunction Risk Parameters R (Radial): 0.885 | I (In-track): -0.587 | C (Cross-track): 0.345
    Collision Risk Index (CRI) 0.56
    X Position (km) 6002.38 6002.837
    Position Y (km) -1919.041 -1919.462
    Position Z (km) -2713.807 -2714.734
    Velocity X (km/s) 2.527 3.585
    Velocity Y (km/s) -1.89 5.226
    Velocity Z (km/s) 6.94 4.237

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 21 STARLINK-5150
    Semimajor Axis (a) 6860.514 km 6861.160 km
    Eccentricity (e) 0.000709 0.000237
    Inclination (i) 97.1331° 43.0048°
    RAAN 337.4905° 20.7680°
    Perigee Argument 348.4536° 282.0041°
    Mean Anomaly (M) 11.6541° 149.3080°
    Apogee 487.243 km 484.650 km
    Perigee 477.511 km 481.396 km
    Orbit Epoch 2026-10-30T00:16:30+0000 2026-10-29T20:00:02+0000

    YAOGAN 21 & STARLINK-5150 Collision Probability (Pc) Trend

    YAOGAN 21 & STARLINK-5150 Collision Probability (Pc) TrendNot Available

    YAOGAN 21 & STARLINK-5150 Miss Distance (Miss Distance) Trend

    YAOGAN 21 & STARLINK-5150 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5150Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5150Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 21

    No nearby objects data