Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.276818E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:31:23+0800
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    1 Object 1

    AOE ID 52609
    NORAD ID 52609
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53834
    NORAD ID 53834
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3997 STARLINK-4737
    Time of Closest Approach 2026-09-05T04:22:37+0000
    Collision Probability (Pc) 5.276818E-7
    Conjunction Distance (km) 2.982 km
    Relative Speed (km/s) 2.572 km/s
    Conjunction Risk Parameters R (Radial): -2.978 | I (In-track): -0.146 | C (Cross-track): 0.024
    Collision Risk Index (CRI) 0.29
    X Position (km) -1366.843 -1366.108
    Position Y (km) 3935.944 3934.279
    Position Z (km) -5432.828 -5430.466
    Velocity X (km/s) -7.434 -6.766
    Velocity Y (km/s) -1.5 -3.428
    Velocity Z (km/s) 0.783 -0.782

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3997 STARLINK-4737
    Semimajor Axis (a) 6840.821 km 6837.892 km
    Eccentricity (e) 0.000174 0.000137
    Inclination (i) 53.1613° 53.1594°
    RAAN 200.9201° 224.9363°
    Perigee Argument 130.5122° 88.5469°
    Mean Anomaly (M) 229.6033° 271.5690°
    Apogee 463.874 km 460.689 km
    Perigee 461.494 km 458.821 km
    Orbit Epoch 2026-09-02T04:49:36+0000 2026-09-02T06:29:58+0000

    STARLINK-3997 & STARLINK-4737 Collision Probability (Pc) Trend

    STARLINK-3997 & STARLINK-4737 Collision Probability (Pc) TrendNot Available

    STARLINK-3997 & STARLINK-4737 Miss Distance (Miss Distance) Trend

    STARLINK-3997 & STARLINK-4737 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3997Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4737Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3997Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4737Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3997

    No nearby objects data