Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    8.899755E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T21:03:01+0800
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    1 Object 1

    AOE ID 54799
    NORAD ID 54799
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 64478
    NORAD ID 64478
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5421 STARLINK-34490
    Time of Closest Approach 2026-10-22T10:03:16+0000
    Collision Probability (Pc) 8.899755E-4
    Conjunction Distance (km) 0.134 km
    Relative Speed (km/s) 7.168 km/s
    Conjunction Risk Parameters R (Radial): 0.009 | I (In-track): 0.116 | C (Cross-track): -0.066
    Collision Risk Index (CRI) 0.94
    X Position (km) 4508.947 4508.917
    Position Y (km) 1144.809 1144.939
    Position Z (km) -5022.476 -5022.485
    Velocity X (km/s) 0.891 -4.204
    Velocity Y (km/s) 7.17 5.877
    Velocity Z (km/s) 2.436 -2.436

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5421 STARLINK-34490
    Semimajor Axis (a) 6840.830 km 6840.884 km
    Eccentricity (e) 0.000154 0.000139
    Inclination (i) 53.1579° 53.1568°
    RAAN 81.0291° 151.3740°
    Perigee Argument 87.2936° 97.8245°
    Mean Anomaly (M) 272.8242° 262.2915°
    Apogee 463.744 km 463.699 km
    Perigee 461.642 km 461.795 km
    Orbit Epoch 2026-10-19T16:41:28+0000 2026-10-20T00:42:35+0000

    STARLINK-5421 & STARLINK-34490 Collision Probability (Pc) Trend

    STARLINK-5421 & STARLINK-34490 Collision Probability (Pc) TrendNot Available

    STARLINK-5421 & STARLINK-34490 Miss Distance (Miss Distance) Trend

    STARLINK-5421 & STARLINK-34490 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5421Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34490Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5421Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34490Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5421

    No nearby objects data