Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.403493E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T13:04:48+0800
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    1 Object 1

    AOE ID 52626
    NORAD ID 52626
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69969
    NORAD ID 69969
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3990 STARLINK-37921
    Time of Closest Approach 2026-09-06T02:00:41+0000
    Collision Probability (Pc) 1.403493E-6
    Conjunction Distance (km) 2.57 km
    Relative Speed (km/s) 10.981 km/s
    Conjunction Risk Parameters R (Radial): 2.424 | I (In-track): 0.589 | C (Cross-track): 0.619
    Collision Risk Index (CRI) 0.38
    X Position (km) 5708.901 5710.707
    Position Y (km) 1518.64 1520.004
    Position Z (km) -3452.76 -3453.978
    Velocity X (km/s) -4.037 1.311
    Velocity Y (km/s) 4.409 5.832
    Velocity Z (km/s) -4.742 4.742

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3990 STARLINK-37921
    Semimajor Axis (a) 6837.841 km 6840.925 km
    Eccentricity (e) 0.000141 0.000118
    Inclination (i) 53.1590° 53.1602°
    RAAN 174.8845° 46.3507°
    Perigee Argument 71.9176° 80.7370°
    Mean Anomaly (M) 288.1981° 269.5172°
    Apogee 460.669 km 463.596 km
    Perigee 458.739 km 461.980 km
    Orbit Epoch 2026-09-04T19:22:46+0000 2026-09-04T22:00:02+0000

    STARLINK-3990 & STARLINK-37921 Collision Probability (Pc) Trend

    STARLINK-3990 & STARLINK-37921 Collision Probability (Pc) TrendNot Available

    STARLINK-3990 & STARLINK-37921 Miss Distance (Miss Distance) Trend

    STARLINK-3990 & STARLINK-37921 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3990Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37921Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3990Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37921Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3990

    No nearby objects data