Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.074345E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T21:43:40+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 63474
    NORAD ID 63474
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-33735
    Time of Closest Approach 2026-10-20T17:14:05+0000
    Collision Probability (Pc) 9.074345E-7
    Conjunction Distance (km) 2.99 km
    Relative Speed (km/s) 7.363 km/s
    Conjunction Risk Parameters R (Radial): 2.447 | I (In-track): 1.498 | C (Cross-track): 0.842
    Collision Risk Index (CRI) 0.34
    X Position (km) 3966.664 3965.481
    Position Y (km) 5355.768 5353.206
    Position Z (km) -1641.888 -1642.874
    Velocity X (km/s) 2.009 -3.901
    Velocity Y (km/s) 0.726 4.38
    Velocity Z (km/s) 7.307 4.871

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-33735
    Semimajor Axis (a) 6845.060 km 6861.188 km
    Eccentricity (e) 0.002833 0.000168
    Inclination (i) 98.6774° 42.9978°
    RAAN 49.6388° 80.2490°
    Perigee Argument 129.3215° 274.4686°
    Mean Anomaly (M) 231.0541° 85.5973°
    Apogee 486.318 km 484.207 km
    Perigee 447.528 km 481.895 km
    Orbit Epoch 2026-10-19T06:49:57+0000 2026-10-18T16:40:44+0000

    CZ-4 DEB & STARLINK-33735 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-33735 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-33735 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-33735 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33735Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33735Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data