Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.599247E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:38:37+0800
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    1 Object 1

    AOE ID 51467
    NORAD ID 51467
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53488
    NORAD ID 53488
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3178 STARLINK-4421
    Time of Closest Approach 2026-09-05T00:21:17+0000
    Collision Probability (Pc) 1.599247E-6
    Conjunction Distance (km) 2.638 km
    Relative Speed (km/s) 14.758 km/s
    Conjunction Risk Parameters R (Radial): 2.638 | I (In-track): 0.002 | C (Cross-track): 0.013
    Collision Risk Index (CRI) 0.39
    X Position (km) -6799.215 -6801.837
    Position Y (km) -650.22 -650.461
    Position Z (km) -447.393 -447.557
    Velocity X (km/s) 0.046 0.392
    Velocity Y (km/s) -4.601 1.011
    Velocity Z (km/s) 6.091 -7.554

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3178 STARLINK-4421
    Semimajor Axis (a) 6843.384 km 6843.702 km
    Eccentricity (e) 0.000125 0.000116
    Inclination (i) 53.1606° 97.2849°
    RAAN 199.8387° 3.2728°
    Perigee Argument 85.7939° 85.8000°
    Mean Anomaly (M) 274.3205° 274.3375°
    Apogee 466.100 km 466.362 km
    Perigee 464.394 km 464.768 km
    Orbit Epoch 2026-09-02T12:56:19+0000 2026-09-02T07:20:44+0000

    STARLINK-3178 & STARLINK-4421 Collision Probability (Pc) Trend

    STARLINK-3178 & STARLINK-4421 Collision Probability (Pc) TrendNot Available

    STARLINK-3178 & STARLINK-4421 Miss Distance (Miss Distance) Trend

    STARLINK-3178 & STARLINK-4421 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3178Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4421Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3178Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3178

    No nearby objects data