Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.333879E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T20:44:33+0800
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    1 Object 1

    AOE ID 52452
    NORAD ID 52452
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66399
    NORAD ID 66399
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3909 STARLINK-35657
    Time of Closest Approach 2026-10-21T13:55:32+0000
    Collision Probability (Pc) 1.333879E-6
    Conjunction Distance (km) 2.603 km
    Relative Speed (km/s) 10.424 km/s
    Conjunction Risk Parameters R (Radial): 2.567 | I (In-track): 0.316 | C (Cross-track): -0.296
    Collision Risk Index (CRI) 0.38
    X Position (km) -404.143 -404.726
    Position Y (km) 5603.599 5605.669
    Position Z (km) -3906.051 -3907.517
    Velocity X (km/s) -5.771 -5.343
    Velocity Y (km/s) 2.564 -3.366
    Velocity Z (km/s) 4.281 -4.28

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3909 STARLINK-35657
    Semimajor Axis (a) 6837.872 km 6840.816 km
    Eccentricity (e) 0.000118 0.000128
    Inclination (i) 53.1596° 53.1566°
    RAAN 133.7336° 248.6879°
    Perigee Argument 86.4874° 104.1212°
    Mean Anomaly (M) 273.6264° 255.9933°
    Apogee 460.542 km 463.556 km
    Perigee 458.928 km 461.802 km
    Orbit Epoch 2026-10-19T19:56:35+0000 2026-10-20T07:14:46+0000

    STARLINK-3909 & STARLINK-35657 Collision Probability (Pc) Trend

    STARLINK-3909 & STARLINK-35657 Collision Probability (Pc) TrendNot Available

    STARLINK-3909 & STARLINK-35657 Miss Distance (Miss Distance) Trend

    STARLINK-3909 & STARLINK-35657 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3909Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35657Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3909Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35657Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3909

    No nearby objects data