Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    6.608414E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T16:54:37+0800
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    1 Object 1

    AOE ID 53542
    NORAD ID 53542
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66238
    NORAD ID 66238
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4489 STARLINK-35556
    Time of Closest Approach 2026-10-23T05:36:56+0000
    Collision Probability (Pc) 6.608414E-5
    Conjunction Distance (km) 0.729 km
    Relative Speed (km/s) 12.037 km/s
    Conjunction Risk Parameters R (Radial): -0.016 | I (In-track): -0.453 | C (Cross-track): -0.569
    Collision Risk Index (CRI) 0.71
    X Position (km) -2373.675 -2374.362
    Position Y (km) 6220.498 6220.255
    Position Z (km) 1565.645 1565.642
    Velocity X (km/s) -3.899 -4.887
    Velocity Y (km/s) -2.972 -0.383
    Velocity Z (km/s) 5.857 -5.857

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4489 STARLINK-35556
    Semimajor Axis (a) 6840.871 km 6840.767 km
    Eccentricity (e) 0.000141 0.000045
    Inclination (i) 53.1603° 53.1606°
    RAAN 112.0156° 312.4548°
    Perigee Argument 82.4157° 312.9865°
    Mean Anomaly (M) 277.7006° 47.1100°
    Apogee 463.698 km 462.940 km
    Perigee 461.770 km 462.320 km
    Orbit Epoch 2026-10-20T19:42:11+0000 2026-10-20T19:04:14+0000

    STARLINK-4489 & STARLINK-35556 Collision Probability (Pc) Trend

    STARLINK-4489 & STARLINK-35556 Collision Probability (Pc) TrendNot Available

    STARLINK-4489 & STARLINK-35556 Miss Distance (Miss Distance) Trend

    STARLINK-4489 & STARLINK-35556 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4489Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35556Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4489Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35556Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4489

    No nearby objects data