Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.22815E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T15:16:08+0800
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    1 Object 1

    AOE ID 43431
    NORAD ID 43431
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 57740
    NORAD ID 57740
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B DEB STARLINK-30331
    Time of Closest Approach 2026-09-04T22:24:20+0000
    Collision Probability (Pc) 2.22815E-5
    Conjunction Distance (km) 0.963 km
    Relative Speed (km/s) 9.314 km/s
    Conjunction Risk Parameters R (Radial): -0.806 | I (In-track): -0.418 | C (Cross-track): 0.318
    Collision Risk Index (CRI) 0.62
    X Position (km) 4856.945 4856.039
    Position Y (km) -4043.604 -4043.533
    Position Z (km) 2665.638 2665.321
    Velocity X (km/s) 2.514 5.263
    Velocity Y (km/s) 5.813 3.494
    Velocity Z (km/s) 4.318 -4.274

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B DEB STARLINK-30331
    Semimajor Axis (a) 6931.851 km 6861.201 km
    Eccentricity (e) 0.011106 0.000152
    Inclination (i) 43.0782° 43.0029°
    RAAN 302.8238° 176.8797°
    Perigee Argument 357.6966° 263.4420°
    Mean Anomaly (M) 2.3355° 96.6259°
    Apogee 630.701 km 484.105 km
    Perigee 476.727 km 482.023 km
    Orbit Epoch 2026-09-03T04:49:14+0000 2026-09-03T04:58:19+0000

    CZ-4B DEB & STARLINK-30331 Collision Probability (Pc) Trend

    CZ-4B DEB & STARLINK-30331 Collision Probability (Pc) TrendNot Available

    CZ-4B DEB & STARLINK-30331 Miss Distance (Miss Distance) Trend

    CZ-4B DEB & STARLINK-30331 Miss Distance (Miss Distance) TrendNot Available

    CZ-4B DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30331Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30331Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B DEB

    No nearby objects data