Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.995188E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-08T22:55:50+0800
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    1 Object 1

    AOE ID 51716
    NORAD ID 51716
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53732
    NORAD ID 53732
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3543 STARLINK-4661
    Time of Closest Approach 2026-09-08T19:52:25+0000
    Collision Probability (Pc) 9.995188E-7
    Conjunction Distance (km) 2.845 km
    Relative Speed (km/s) 7.874 km/s
    Conjunction Risk Parameters R (Radial): -2.639 | I (In-track): -0.913 | C (Cross-track): 0.539
    Collision Risk Index (CRI) 0.35
    X Position (km) -128.762 -129.773
    Position Y (km) -4782.663 -4780.794
    Position Z (km) 4883.581 4881.689
    Velocity X (km/s) 6.619 6.468
    Velocity Y (km/s) 2.638 -2.992
    Velocity Z (km/s) 2.75 -2.751

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3543 STARLINK-4661
    Semimajor Axis (a) 6843.362 km 6840.865 km
    Eccentricity (e) 0.000109 0.000125
    Inclination (i) 53.1600° 53.1605°
    RAAN 221.0163° 142.4316°
    Perigee Argument 94.5864° 86.9746°
    Mean Anomaly (M) 265.5263° 273.1400°
    Apogee 465.973 km 463.587 km
    Perigee 464.477 km 461.869 km
    Orbit Epoch 2026-09-08T07:05:11+0000 2026-09-07T23:02:42+0000

    STARLINK-3543 & STARLINK-4661 Collision Probability (Pc) Trend

    STARLINK-3543 & STARLINK-4661 Collision Probability (Pc) TrendNot Available

    STARLINK-3543 & STARLINK-4661 Miss Distance (Miss Distance) Trend

    STARLINK-3543 & STARLINK-4661 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3543Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4661Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3543Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4661Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3543

    No nearby objects data