Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.213851E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:42:02+0800
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    1 Object 1

    AOE ID 52346
    NORAD ID 52346
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53654
    NORAD ID 53654
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3812 STARLINK-4420
    Time of Closest Approach 2026-10-21T14:21:40+0000
    Collision Probability (Pc) 1.213851E-6
    Conjunction Distance (km) 2.757 km
    Relative Speed (km/s) 10.293 km/s
    Conjunction Risk Parameters R (Radial): -2.732 | I (In-track): -0.266 | C (Cross-track): -0.244
    Collision Risk Index (CRI) 0.37
    X Position (km) -4293.013 -4291.06
    Position Y (km) -3.699 -3.512
    Position Z (km) -5343.675 -5341.739
    Velocity X (km/s) -1.702 -5.817
    Velocity Y (km/s) -7.299 1.538
    Velocity Z (km/s) 1.373 4.675

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3812 STARLINK-4420
    Semimajor Axis (a) 6848.954 km 6843.788 km
    Eccentricity (e) 0.000133 0.000198
    Inclination (i) 53.1592° 97.2830°
    RAAN 259.5625° 169.2235°
    Perigee Argument 99.1112° 92.4746°
    Mean Anomaly (M) 261.0039° 267.6723°
    Apogee 471.728 km 467.005 km
    Perigee 469.906 km 464.297 km
    Orbit Epoch 2026-10-19T07:53:10+0000 2026-10-19T21:52:01+0000

    STARLINK-3812 & STARLINK-4420 Collision Probability (Pc) Trend

    STARLINK-3812 & STARLINK-4420 Collision Probability (Pc) TrendNot Available

    STARLINK-3812 & STARLINK-4420 Miss Distance (Miss Distance) Trend

    STARLINK-3812 & STARLINK-4420 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3812Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4420Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3812Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4420Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3812

    No nearby objects data