Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    5.264338E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T08:16:54+0800
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    1 Object 1

    AOE ID 53674
    NORAD ID 53674
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59314
    NORAD ID 59314
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4620 STARLINK-31477
    Time of Closest Approach 2026-10-21T11:24:41+0000
    Collision Probability (Pc) 5.264338E-4
    Conjunction Distance (km) 0.285 km
    Relative Speed (km/s) 13.638 km/s
    Conjunction Risk Parameters R (Radial): -0.132 | I (In-track): -0.104 | C (Cross-track): 0.23
    Collision Risk Index (CRI) 0.89
    X Position (km) 5419.301 5419.387
    Position Y (km) -1762.053 -1761.87
    Position Z (km) -3825.388 -3825.588
    Velocity X (km/s) -4.346 3.985
    Velocity Y (km/s) 0.19 5.763
    Velocity Z (km/s) -6.253 2.994

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4620 STARLINK-31477
    Semimajor Axis (a) 6857.267 km 6861.203 km
    Eccentricity (e) 0.000199 0.000081
    Inclination (i) 97.2854° 43.0009°
    RAAN 165.9600° 34.6702°
    Perigee Argument 102.3966° 285.6733°
    Mean Anomaly (M) 145.8929° 74.4029°
    Apogee 480.496 km 483.622 km
    Perigee 477.764 km 482.510 km
    Orbit Epoch 2026-10-20T12:00:03+0000 2026-10-20T07:24:13+0000

    STARLINK-4620 & STARLINK-31477 Collision Probability (Pc) Trend

    STARLINK-4620 & STARLINK-31477 Collision Probability (Pc) TrendNot Available

    STARLINK-4620 & STARLINK-31477 Miss Distance (Miss Distance) Trend

    STARLINK-4620 & STARLINK-31477 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4620Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31477Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4620Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31477Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4620

    No nearby objects data