Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.497728E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T03:22:09+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 59460
    NORAD ID 59460
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-30509 STARLINK-31620
    Time of Closest Approach 2026-10-27T19:56:41+0000
    Collision Probability (Pc) 2.497728E-6
    Conjunction Distance (km) 1.527 km
    Relative Speed (km/s) 3.592 km/s
    Conjunction Risk Parameters R (Radial): 0.796 | I (In-track): -1.266 | C (Cross-track): -0.305
    Collision Risk Index (CRI) 0.43
    X Position (km) -3326.523 -3327.904
    Position Y (km) -3945.869 -3945.486
    Position Z (km) 4513.919 4514.444
    Velocity X (km/s) 4.903 6.427
    Velocity Y (km/s) -5.683 -3.874
    Velocity Z (km/s) -1.352 1.351

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30509 STARLINK-31620
    Semimajor Axis (a) 6860.840 km 6861.171 km
    Eccentricity (e) 0.000326 0.000447
    Inclination (i) 43.0044° 43.0010°
    RAAN 123.0909° 164.5544°
    Perigee Argument 268.5140° 281.0746°
    Mean Anomaly (M) 91.5338° 78.9604°
    Apogee 484.940 km 486.099 km
    Perigee 480.466 km 479.969 km
    Orbit Epoch 2026-10-27T05:21:53+0000 2026-10-27T00:47:14+0000

    STARLINK-30509 & STARLINK-31620 Collision Probability (Pc) Trend

    STARLINK-30509 & STARLINK-31620 Collision Probability (Pc) TrendNot Available

    STARLINK-30509 & STARLINK-31620 Miss Distance (Miss Distance) Trend

    STARLINK-30509 & STARLINK-31620 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30509Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31620Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30509Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31620Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30509

    No nearby objects data