Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.533537E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T06:16:05+0800
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    1 Object 1

    AOE ID 53498
    NORAD ID 53498
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53982
    NORAD ID 53982
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4439 STARLINK-5120
    Time of Closest Approach 2026-10-22T15:32:11+0000
    Collision Probability (Pc) 1.533537E-6
    Conjunction Distance (km) 2.668 km
    Relative Speed (km/s) 14.158 km/s
    Conjunction Risk Parameters R (Radial): 2.487 | I (In-track): 0.369 | C (Cross-track): -0.893
    Collision Risk Index (CRI) 0.39
    X Position (km) 3517.686 3518.136
    Position Y (km) 3667.075 3668.725
    Position Z (km) 4578.442 4580.489
    Velocity X (km/s) -2.551 -2.357
    Velocity Y (km/s) -4.542 6.446
    Velocity Z (km/s) 5.582 -3.344

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4439 STARLINK-5120
    Semimajor Axis (a) 6843.611 km 6848.885 km
    Eccentricity (e) 0.000176 0.000155
    Inclination (i) 97.2835° 53.1614°
    RAAN 50.4859° 280.9562°
    Perigee Argument 113.3474° 92.2265°
    Mean Anomaly (M) 246.7954° 267.8914°
    Apogee 466.681 km 471.809 km
    Perigee 464.267 km 469.687 km
    Orbit Epoch 2026-10-20T06:58:18+0000 2026-10-20T00:21:39+0000

    STARLINK-4439 & STARLINK-5120 Collision Probability (Pc) Trend

    STARLINK-4439 & STARLINK-5120 Collision Probability (Pc) TrendNot Available

    STARLINK-4439 & STARLINK-5120 Miss Distance (Miss Distance) Trend

    STARLINK-4439 & STARLINK-5120 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4439Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5120Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4439Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5120Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4439

    No nearby objects data