Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.980429E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T12:06:16+0800
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    1 Object 1

    AOE ID 35270
    NORAD ID 35270
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 67880
    NORAD ID 67880
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-36821
    Time of Closest Approach 2026-10-22T19:40:12+0000
    Collision Probability (Pc) 6.980429E-7
    Conjunction Distance (km) 2.661 km
    Relative Speed (km/s) 3.44 km/s
    Conjunction Risk Parameters R (Radial): -1.216 | I (In-track): -2.301 | C (Cross-track): 0.549
    Collision Risk Index (CRI) 0.32
    X Position (km) 884.538 883.542
    Position Y (km) -322.091 -324.214
    Position Z (km) -6785.502 -6786.759
    Velocity X (km/s) -2.173 -5.135
    Velocity Y (km/s) -7.287 -5.61
    Velocity Z (km/s) 0.086 -0.401

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-36821
    Semimajor Axis (a) 6823.382 km 6843.646 km
    Eccentricity (e) 0.004446 0.000147
    Inclination (i) 97.8782° 97.2849°
    RAAN 249.7293° 224.6501°
    Perigee Argument 58.7399° 109.2990°
    Mean Anomaly (M) 301.8189° 250.8411°
    Apogee 475.583 km 466.512 km
    Perigee 414.907 km 464.506 km
    Orbit Epoch 2026-10-19T07:52:51+0000 2026-10-20T06:59:58+0000

    CZ-4 DEB & STARLINK-36821 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-36821 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-36821 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-36821 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36821Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36821Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data