Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.355913E-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 56484
    NORAD ID 56484
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3909 STARLINK-6221
    Time of Closest Approach 2026-10-22T11:04:04+0000
    Collision Probability (Pc) 1.355913E-6
    Conjunction Distance (km) 2.799 km
    Relative Speed (km/s) 12.94 km/s
    Conjunction Risk Parameters R (Radial): -1.102 | I (In-track): -1.368 | C (Cross-track): -2.178
    Collision Risk Index (CRI) 0.38
    X Position (km) 1055.794 1053.159
    Position Y (km) -6047.825 -6047.474
    Position Z (km) 3002.919 3002.044
    Velocity X (km/s) 5.454 2.33
    Velocity Y (km/s) -1.594 3.563
    Velocity Z (km/s) -5.108 6.342

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3909 STARLINK-6221
    Semimajor Axis (a) 6837.872 km 6830.798 km
    Eccentricity (e) 0.000118 0.000440
    Inclination (i) 53.1596° 69.9996°
    RAAN 133.7336° 275.3783°
    Perigee Argument 86.4874° 239.8911°
    Mean Anomaly (M) 273.6264° 120.1833°
    Apogee 460.542 km 455.667 km
    Perigee 458.928 km 449.655 km
    Orbit Epoch 2026-10-19T19:56:35+0000 2026-10-20T07:25:19+0000

    STARLINK-3909 & STARLINK-6221 Collision Probability (Pc) Trend

    STARLINK-3909 & STARLINK-6221 Collision Probability (Pc) TrendNot Available

    STARLINK-3909 & STARLINK-6221 Miss Distance (Miss Distance) Trend

    STARLINK-3909 & STARLINK-6221 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3909Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-6221Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3909Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-6221Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3909

    No nearby objects data