Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.424311E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T10:53:38+0800
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    1 Object 1

    AOE ID 52503
    NORAD ID 52503
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 60101
    NORAD ID 60101
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3861 STARLINK-31999
    Time of Closest Approach 2026-09-04T19:13:53+0000
    Collision Probability (Pc) 5.424311E-7
    Conjunction Distance (km) 2.988 km
    Relative Speed (km/s) 2.737 km/s
    Conjunction Risk Parameters R (Radial): -2.984 | I (In-track): -0.118 | C (Cross-track): -0.027
    Collision Risk Index (CRI) 0.3
    X Position (km) 3737.389 3738.965
    Position Y (km) 1836.534 1837.444
    Position Z (km) 5413.766 5416.135
    Velocity X (km/s) -4.29 -2.341
    Velocity Y (km/s) 6.267 7.223
    Velocity Z (km/s) 0.833 -0.832

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3861 STARLINK-31999
    Semimajor Axis (a) 6837.858 km 6840.864 km
    Eccentricity (e) 0.000110 0.000114
    Inclination (i) 53.1612° 53.1598°
    RAAN 323.8043° 294.9071°
    Perigee Argument 67.6891° 94.3593°
    Mean Anomaly (M) 292.4229° 265.7540°
    Apogee 460.476 km 463.509 km
    Perigee 458.966 km 461.945 km
    Orbit Epoch 2026-09-01T15:53:19+0000 2026-09-02T07:24:12+0000

    STARLINK-3861 & STARLINK-31999 Collision Probability (Pc) Trend

    STARLINK-3861 & STARLINK-31999 Collision Probability (Pc) TrendNot Available

    STARLINK-3861 & STARLINK-31999 Miss Distance (Miss Distance) Trend

    STARLINK-3861 & STARLINK-31999 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3861Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31999Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3861Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31999Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3861

    No nearby objects data