Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    6.819432E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:35:06+0800
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    1 Object 1

    AOE ID 53535
    NORAD ID 53535
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53804
    NORAD ID 53804
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4138 STARLINK-4729
    Time of Closest Approach 2026-09-04T10:31:37+0000
    Collision Probability (Pc) 6.819432E-6
    Conjunction Distance (km) 1.435 km
    Relative Speed (km/s) 12.227 km/s
    Conjunction Risk Parameters R (Radial): -0.749 | I (In-track): -0.73 | C (Cross-track): -0.98
    Collision Risk Index (CRI) 0.52
    X Position (km) 6622.915 6623.945
    Position Y (km) -1698.483 -1697.484
    Position Z (km) 137.641 137.66
    Velocity X (km/s) 1.011 1.264
    Velocity Y (km/s) 4.467 4.402
    Velocity Z (km/s) 6.112 -6.111

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4138 STARLINK-4729
    Semimajor Axis (a) 6837.892 km 6837.836 km
    Eccentricity (e) 0.000097 0.000227
    Inclination (i) 53.1624° 53.1594°
    RAAN 357.5554° 177.3121°
    Perigee Argument 84.6150° 48.5093°
    Mean Anomaly (M) 275.4964° 311.6104°
    Apogee 460.422 km 461.248 km
    Perigee 459.088 km 458.150 km
    Orbit Epoch 2026-09-01T16:54:25+0000 2026-09-02T03:04:33+0000

    STARLINK-4138 & STARLINK-4729 Collision Probability (Pc) Trend

    STARLINK-4138 & STARLINK-4729 Collision Probability (Pc) TrendNot Available

    STARLINK-4138 & STARLINK-4729 Miss Distance (Miss Distance) Trend

    STARLINK-4138 & STARLINK-4729 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4138Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4729Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4138Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4729Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4138

    No nearby objects data