Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.405461E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-08-31T12:08:31+0800
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    1 Object 1

    AOE ID 35378
    NORAD ID 35378
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 65893
    NORAD ID 65893
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4 DEB STARLINK-34921
    Time of Closest Approach 2026-08-31T07:08:55+0000
    Collision Probability (Pc) 1.405461E-6
    Conjunction Distance (km) 2.442 km
    Relative Speed (km/s) 9.461 km/s
    Conjunction Risk Parameters R (Radial): 0.737 | I (In-track): -1.829 | C (Cross-track): -1.439
    Collision Risk Index (CRI) 0.38
    X Position (km) -4205.415 -4206.93
    Position Y (km) 1696.334 1698.059
    Position Z (km) -5127.875 -5127.044
    Velocity X (km/s) 5.782 -0.333
    Velocity Y (km/s) -0.644 -7.308
    Velocity Z (km/s) -4.922 -2.149

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4 DEB STARLINK-34921
    Semimajor Axis (a) 6831.470 km 6840.813 km
    Eccentricity (e) 0.003679 0.000105
    Inclination (i) 97.8215° 53.1579°
    RAAN 346.3766° 284.2670°
    Perigee Argument 337.7806° 86.4618°
    Mean Anomaly (M) 22.1841° 273.6504°
    Apogee 478.467 km 463.393 km
    Perigee 428.199 km 461.959 km
    Orbit Epoch 2026-08-30T17:39:30+0000 2026-08-30T09:44:41+0000

    CZ-4 DEB & STARLINK-34921 Collision Probability (Pc) Trend

    CZ-4 DEB & STARLINK-34921 Collision Probability (Pc) TrendNot Available

    CZ-4 DEB & STARLINK-34921 Miss Distance (Miss Distance) Trend

    CZ-4 DEB & STARLINK-34921 Miss Distance (Miss Distance) TrendNot Available

    CZ-4 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34921Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34921Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4 DEB

    No nearby objects data