Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.149403E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T06:24:09+0800
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    1 Object 1

    AOE ID 26121
    NORAD ID 26121
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 63800
    NORAD ID 63800
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-33900
    Time of Closest Approach 2026-10-20T09:25:40+0000
    Collision Probability (Pc) 4.149403E-5
    Conjunction Distance (km) 0.877 km
    Relative Speed (km/s) 14.373 km/s
    Conjunction Risk Parameters R (Radial): 0.392 | I (In-track): 0.257 | C (Cross-track): 0.742
    Collision Risk Index (CRI) 0.67
    X Position (km) 4165.865 4166.139
    Position Y (km) 5366.987 5366.216
    Position Z (km) -965.583 -965.898
    Velocity X (km/s) 1.552 -4.889
    Velocity Y (km/s) 0.108 2.885
    Velocity Z (km/s) 7.455 -5.09

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-33900
    Semimajor Axis (a) 6845.051 km 6861.177 km
    Eccentricity (e) 0.002833 0.000122
    Inclination (i) 98.6774° 42.9974°
    RAAN 49.7153° 230.2456°
    Perigee Argument 129.1017° 279.9512°
    Mean Anomaly (M) 231.2748° 80.1202°
    Apogee 486.309 km 483.877 km
    Perigee 447.519 km 482.203 km
    Orbit Epoch 2026-10-19T08:23:57+0000 2026-10-19T04:20:44+0000

    CZ-4 DEB & STARLINK-33900 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-33900 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-33900 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-33900 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33900Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33900Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data