Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    6.04678E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:37:22+0800
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    1 Object 1

    AOE ID 52879
    NORAD ID 52879
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 66025
    NORAD ID 66025
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4139 STARLINK-35280
    Time of Closest Approach 2026-09-04T02:21:30+0000
    Collision Probability (Pc) 6.04678E-5
    Conjunction Distance (km) 0.673 km
    Relative Speed (km/s) 7.38 km/s
    Conjunction Risk Parameters R (Radial): -0.665 | I (In-track): 0.087 | C (Cross-track): -0.043
    Collision Risk Index (CRI) 0.71
    X Position (km) -3180.32 -3179.942
    Position Y (km) -3449.824 -3449.556
    Position Z (km) -4985.661 -4985.174
    Velocity X (km/s) 3.086 6.727
    Velocity Y (km/s) -6.498 -2.548
    Velocity Z (km/s) 2.53 -2.53

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4139 STARLINK-35280
    Semimajor Axis (a) 6840.869 km 6840.824 km
    Eccentricity (e) 0.000132 0.000101
    Inclination (i) 53.1593° 53.1605°
    RAAN 288.0019° 5.3901°
    Perigee Argument 89.3060° 83.1967°
    Mean Anomaly (M) 270.8094° 276.9151°
    Apogee 463.635 km 463.378 km
    Perigee 461.829 km 461.996 km
    Orbit Epoch 2026-09-02T09:59:55+0000 2026-09-01T18:34:55+0000

    STARLINK-4139 & STARLINK-35280 Collision Probability (Pc) Trend

    STARLINK-4139 & STARLINK-35280 Collision Probability (Pc) TrendNot Available

    STARLINK-4139 & STARLINK-35280 Miss Distance (Miss Distance) Trend

    STARLINK-4139 & STARLINK-35280 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4139Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35280Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4139Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35280Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4139

    No nearby objects data