Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.362206E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T05:55:57+0800
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    1 Object 1

    AOE ID 51813
    NORAD ID 51813
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 52628
    NORAD ID 52628
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3552 STARLINK-4001
    Time of Closest Approach 2026-10-21T03:37:36+0000
    Collision Probability (Pc) 7.362206E-7
    Conjunction Distance (km) 2.959 km
    Relative Speed (km/s) 4.901 km/s
    Conjunction Risk Parameters R (Radial): 2.742 | I (In-track): 1.053 | C (Cross-track): -0.355
    Collision Risk Index (CRI) 0.32
    X Position (km) -270.888 -271.888
    Position Y (km) -4327.849 -4326.045
    Position Z (km) -5297.89 -5295.77
    Velocity X (km/s) 7.324 7.089
    Velocity Y (km/s) 1.441 -2.344
    Velocity Z (km/s) -1.552 1.552

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3552 STARLINK-4001
    Semimajor Axis (a) 6840.858 km 6837.870 km
    Eccentricity (e) 0.000097 0.000134
    Inclination (i) 53.1620° 53.1595°
    RAAN 23.0422° 337.5627°
    Perigee Argument 60.9733° 88.6109°
    Mean Anomaly (M) 299.1367° 271.5048°
    Apogee 463.387 km 460.653 km
    Perigee 462.055 km 458.813 km
    Orbit Epoch 2026-10-20T12:26:58+0000 2026-10-20T02:57:29+0000

    STARLINK-3552 & STARLINK-4001 Collision Probability (Pc) Trend

    STARLINK-3552 & STARLINK-4001 Collision Probability (Pc) TrendNot Available

    STARLINK-3552 & STARLINK-4001 Miss Distance (Miss Distance) Trend

    STARLINK-3552 & STARLINK-4001 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3552Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4001Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3552Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4001Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3552

    No nearby objects data