Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.830428E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:42:31+0800
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    1 Object 1

    AOE ID 52540
    NORAD ID 52540
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 66029
    NORAD ID 66029
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3940 STARLINK-35399
    Time of Closest Approach 2026-09-04T05:33:58+0000
    Collision Probability (Pc) 7.830428E-7
    Conjunction Distance (km) 2.78 km
    Relative Speed (km/s) 4.782 km/s
    Conjunction Risk Parameters R (Radial): -0.394 | I (In-track): -2.612 | C (Cross-track): 0.864
    Collision Risk Index (CRI) 0.33
    X Position (km) -1125.256 -1122.534
    Position Y (km) 4165.884 4166.359
    Position Z (km) 5298.59 5298.286
    Velocity X (km/s) -6.521 -7.488
    Velocity Y (km/s) -3.682 -0.097
    Velocity Z (km/s) 1.506 -1.507

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3940 STARLINK-35399
    Semimajor Axis (a) 6840.831 km 6840.826 km
    Eccentricity (e) 0.000113 0.000108
    Inclination (i) 53.1609° 53.1619°
    RAAN 45.4291° 3.7414°
    Perigee Argument 76.2906° 84.1185°
    Mean Anomaly (M) 348.6690° 275.9941°
    Apogee 463.470 km 463.430 km
    Perigee 461.918 km 461.948 km
    Orbit Epoch 2026-09-02T16:00:02+0000 2026-09-01T17:42:44+0000

    STARLINK-3940 & STARLINK-35399 Collision Probability (Pc) Trend

    STARLINK-3940 & STARLINK-35399 Collision Probability (Pc) TrendNot Available

    STARLINK-3940 & STARLINK-35399 Miss Distance (Miss Distance) Trend

    STARLINK-3940 & STARLINK-35399 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3940Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35399Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3940Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35399Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3940

    No nearby objects data