Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    5.125946E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T04:43:59+0800
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    1 Object 1

    AOE ID 57977
    NORAD ID 57977
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63481
    NORAD ID 63481
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-30509 STARLINK-33639
    Time of Closest Approach 2026-10-21T23:15:55+0000
    Collision Probability (Pc) 5.125946E-6
    Conjunction Distance (km) 1.419 km
    Relative Speed (km/s) 7.624 km/s
    Conjunction Risk Parameters R (Radial): 0.138 | I (In-track): -1.223 | C (Cross-track): -0.705
    Collision Risk Index (CRI) 0.49
    X Position (km) 5582.658 5583.151
    Position Y (km) 1560.396 1559.068
    Position Z (km) -3674.162 -3674.235
    Velocity X (km/s) -3.741 0.189
    Velocity Y (km/s) 5.806 6.904
    Velocity Z (km/s) -3.22 3.22

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30509 STARLINK-33639
    Semimajor Axis (a) 6861.212 km 6861.178 km
    Eccentricity (e) 0.000230 0.000111
    Inclination (i) 43.0026° 42.9991°
    RAAN 169.6237° 72.8180°
    Perigee Argument 258.9325° 263.9263°
    Mean Anomaly (M) 101.1268° 96.1462°
    Apogee 484.653 km 483.802 km
    Perigee 481.497 km 482.280 km
    Orbit Epoch 2026-10-18T23:38:18+0000 2026-10-19T10:17:30+0000

    STARLINK-30509 & STARLINK-33639 Collision Probability (Pc) Trend

    STARLINK-30509 & STARLINK-33639 Collision Probability (Pc) TrendNot Available

    STARLINK-30509 & STARLINK-33639 Miss Distance (Miss Distance) Trend

    STARLINK-30509 & STARLINK-33639 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30509Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33639Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30509Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33639Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30509

    No nearby objects data