Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.413015E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:33:35+0800
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    1 Object 1

    AOE ID 52620
    NORAD ID 52620
    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-3975 STARLINK-4421
    Time of Closest Approach 2026-09-03T13:10:29+0000
    Collision Probability (Pc) 1.413015E-6
    Conjunction Distance (km) 2.867 km
    Relative Speed (km/s) 14.712 km/s
    Conjunction Risk Parameters R (Radial): 2.492 | I (In-track): 0.381 | C (Cross-track): 1.367
    Collision Risk Index (CRI) 0.38
    X Position (km) 6550.336 6552.509
    Position Y (km) 262.732 264.124
    Position Z (km) 1957.318 1958.565
    Velocity X (km/s) 1.52 -2.133
    Velocity Y (km/s) 4.842 -1.096
    Velocity Z (km/s) -5.706 7.247

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3975 STARLINK-4421
    Semimajor Axis (a) 6843.372 km 6843.702 km
    Eccentricity (e) 0.000131 0.000116
    Inclination (i) 53.1587° 97.2849°
    RAAN 201.7583° 3.2728°
    Perigee Argument 83.3620° 85.8000°
    Mean Anomaly (M) 276.7531° 274.3375°
    Apogee 466.134 km 466.362 km
    Perigee 464.336 km 464.768 km
    Orbit Epoch 2026-09-02T03:38:18+0000 2026-09-02T07:20:44+0000

    STARLINK-3975 & STARLINK-4421 Collision Probability (Pc) Trend

    STARLINK-3975 & STARLINK-4421 Collision Probability (Pc) TrendNot Available

    STARLINK-3975 & STARLINK-4421 Miss Distance (Miss Distance) Trend

    STARLINK-3975 & STARLINK-4421 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3975Miss 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-3975Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3975

    No nearby objects data