Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.933172E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T11:53:08+0800
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    1 Object 1

    AOE ID 43194
    NORAD ID 43194
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 64721
    NORAD ID 64721
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter ZHANGHENG 1 STARLINK-34558
    Time of Closest Approach 2026-09-03T14:58:50+0000
    Collision Probability (Pc) 2.933172E-6
    Conjunction Distance (km) 1.99 km
    Relative Speed (km/s) 15.101 km/s
    Conjunction Risk Parameters R (Radial): -1.761 | I (In-track): -0.13 | C (Cross-track): -0.916
    Collision Risk Index (CRI) 0.44
    X Position (km) 3026.441 3026.523
    Position Y (km) 4984.236 4986.088
    Position Z (km) -3646.633 -3647.354
    Velocity X (km/s) 3.093 -4.539
    Velocity Y (km/s) 2.777 -1.563
    Velocity Z (km/s) 6.381 -5.905

    Orbital Parameters 国际轨道数据源

    Parameter ZHANGHENG 1 STARLINK-34558
    Semimajor Axis (a) 6880.527 km 6889.421 km
    Eccentricity (e) 0.001567 0.000298
    Inclination (i) 97.6950° 69.9999°
    RAAN 52.5453° 228.2915°
    Perigee Argument 4.2581° 276.3010°
    Mean Anomaly (M) 355.8785° 2.2096°
    Apogee 513.174 km 513.340 km
    Perigee 491.606 km 509.228 km
    Orbit Epoch 2026-09-02T07:32:49+0000 2026-09-02T14:00:02+0000

    ZHANGHENG 1 & STARLINK-34558 Collision Probability (Pc) Trend

    ZHANGHENG 1 & STARLINK-34558 Collision Probability (Pc) TrendNot Available

    ZHANGHENG 1 & STARLINK-34558 Miss Distance (Miss Distance) Trend

    ZHANGHENG 1 & STARLINK-34558 Miss Distance (Miss Distance) TrendNot Available

    ZHANGHENG 1Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34558Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    ZHANGHENG 1Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34558Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with ZHANGHENG 1

    No nearby objects data