Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    4.54925E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T07:25:10+0800
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    1 Object 1

    AOE ID 52561
    NORAD ID 52561
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 65934
    NORAD ID 65934
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3955 STARLINK-33921
    Time of Closest Approach 2026-09-03T11:31:10+0000
    Collision Probability (Pc) 4.54925E-7
    Conjunction Distance (km) 2.739 km
    Relative Speed (km/s) 1.484 km/s
    Conjunction Risk Parameters R (Radial): -2.492 | I (In-track): 1.13 | C (Cross-track): 0.106
    Collision Risk Index (CRI) 0.28
    X Position (km) 3250.81 3251.298
    Position Y (km) -2538.598 -2540.419
    Position Z (km) -5460.886 -5462.872
    Velocity X (km/s) 5.138 4.206
    Velocity Y (km/s) 5.617 6.344
    Velocity Z (km/s) 0.448 -0.447

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3955 STARLINK-33921
    Semimajor Axis (a) 6837.872 km 6840.878 km
    Eccentricity (e) 0.000120 0.000076
    Inclination (i) 53.1612° 53.1605°
    RAAN 52.5705° 63.4663°
    Perigee Argument 83.9709° 122.5599°
    Mean Anomaly (M) 276.1430° 237.5477°
    Apogee 460.557 km 463.263 km
    Perigee 458.913 km 462.219 km
    Orbit Epoch 2026-09-01T20:50:12+0000 2026-09-02T12:28:50+0000

    STARLINK-3955 & STARLINK-33921 Collision Probability (Pc) Trend

    STARLINK-3955 & STARLINK-33921 Collision Probability (Pc) TrendNot Available

    STARLINK-3955 & STARLINK-33921 Miss Distance (Miss Distance) Trend

    STARLINK-3955 & STARLINK-33921 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3955Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33921Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3955Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33921Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3955

    No nearby objects data