Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.458636E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T20:40:45+0800
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    1 Object 1

    AOE ID 39211
    NORAD ID 39211
    Object Type ROCKET BODY
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 53135
    NORAD ID 53135
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4C R/B STARLINK-4023
    Time of Closest Approach 2026-09-14T11:36:21+0000
    Collision Probability (Pc) 1.458636E-6
    Conjunction Distance (km) 2.787 km
    Relative Speed (km/s) 14.526 km/s
    Conjunction Risk Parameters R (Radial): -1.314 | I (In-track): 0.765 | C (Cross-track): -2.334
    Collision Risk Index (CRI) 0.38
    X Position (km) 5804.401 5806.243
    Position Y (km) 390.023 387.947
    Position Z (km) -3604.954 -3604.707
    Velocity X (km/s) -3.903 2.48
    Velocity Y (km/s) -1.506 5.558
    Velocity Z (km/s) -6.37 4.6

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C R/B STARLINK-4023
    Semimajor Axis (a) 6824.370 km 6840.880 km
    Eccentricity (e) 0.006102 0.000100
    Inclination (i) 97.9602° 53.1606°
    RAAN 185.8802° 42.4238°
    Perigee Argument 330.9859° 75.7489°
    Mean Anomaly (M) 28.7998° 284.3625°
    Apogee 487.873 km 463.430 km
    Perigee 404.593 km 462.056 km
    Orbit Epoch 2026-09-11T18:44:47+0000 2026-09-12T03:30:27+0000

    CZ-4C R/B & STARLINK-4023 Collision Probability (Pc) Trend

    CZ-4C R/B & STARLINK-4023 Collision Probability (Pc) TrendNot Available

    CZ-4C R/B & STARLINK-4023 Miss Distance (Miss Distance) Trend

    CZ-4C R/B & STARLINK-4023 Miss Distance (Miss Distance) TrendNot Available

    CZ-4C R/BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4023Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4023Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C R/B

    No nearby objects data