Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.390417E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T02:30:35+0800
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    1 Object 1

    AOE ID 29538
    NORAD ID 29538
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 69480
    NORAD ID 69480
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B DEB STARLINK-37817
    Time of Closest Approach 2026-09-03T13:54:17+0000
    Collision Probability (Pc) 1.390417E-6
    Conjunction Distance (km) 2.795 km
    Relative Speed (km/s) 13.47 km/s
    Conjunction Risk Parameters R (Radial): 0.756 | I (In-track): 1.264 | C (Cross-track): -2.375
    Collision Risk Index (CRI) 0.38
    X Position (km) 914.702 912.257
    Position Y (km) 1742.373 1743.5
    Position Z (km) -6564.01 -6563.262
    Velocity X (km/s) 6.255 -0.053
    Velocity Y (km/s) 3.903 -7.359
    Velocity Z (km/s) 1.885 -1.963

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B DEB STARLINK-37817
    Semimajor Axis (a) 6835.206 km 6843.693 km
    Eccentricity (e) 0.003289 0.000140
    Inclination (i) 98.0747° 97.2838°
    RAAN 31.0510° 266.1086°
    Perigee Argument 174.5071° 101.6786°
    Mean Anomaly (M) 185.6538° 258.4614°
    Apogee 479.552 km 466.513 km
    Perigee 434.586 km 464.599 km
    Orbit Epoch 2026-08-31T20:35:11+0000 2026-09-02T00:46:33+0000

    CZ-4B DEB & STARLINK-37817 Collision Probability (Pc) Trend

    CZ-4B DEB & STARLINK-37817 Collision Probability (Pc) TrendNot Available

    CZ-4B DEB & STARLINK-37817 Miss Distance (Miss Distance) Trend

    CZ-4B DEB & STARLINK-37817 Miss Distance (Miss Distance) TrendNot Available

    CZ-4B DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37817Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37817Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B DEB

    No nearby objects data