Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    7.917086E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T15:20:27+0800
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    1 Object 1

    AOE ID 57655
    NORAD ID 57655
    Object Type ROCKET BODY
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 57972
    NORAD ID 57972
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4C R/B STARLINK-30505
    Time of Closest Approach 2026-09-11T16:45:06+0000
    Collision Probability (Pc) 7.917086E-6
    Conjunction Distance (km) 1.38 km
    Relative Speed (km/s) 12.569 km/s
    Conjunction Risk Parameters R (Radial): -1.37 | I (In-track): -0.086 | C (Cross-track): 0.138
    Collision Risk Index (CRI) 0.53
    X Position (km) -885.201 -885.129
    Position Y (km) -5033.211 -5032.113
    Position Z (km) -4583.491 -4582.659
    Velocity X (km/s) -2.256 7.536
    Velocity Y (km/s) -4.653 -0.369
    Velocity Z (km/s) 5.562 -1.051

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C R/B STARLINK-30505
    Semimajor Axis (a) 6820.664 km 6861.159 km
    Eccentricity (e) 0.005622 0.000148
    Inclination (i) 97.9778° 43.0021°
    RAAN 252.0280° 11.9560°
    Perigee Argument 128.1372° 258.2488°
    Mean Anomaly (M) 232.4960° 101.8198°
    Apogee 480.875 km 484.037 km
    Perigee 404.179 km 482.007 km
    Orbit Epoch 2026-09-10T23:47:48+0000 2026-09-10T14:31:05+0000

    CZ-4C R/B & STARLINK-30505 Collision Probability (Pc) Trend

    CZ-4C R/B & STARLINK-30505 Collision Probability (Pc) TrendNot Available

    CZ-4C R/B & STARLINK-30505 Miss Distance (Miss Distance) Trend

    CZ-4C R/B & STARLINK-30505 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-30505Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30505Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C R/B

    No nearby objects data