Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    9.017164E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T23:06:48+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 55348
    NORAD ID 55348
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4C R/B STARLINK-5609
    Time of Closest Approach 2026-10-29T00:08:36+0000
    Collision Probability (Pc) 9.017164E-6
    Conjunction Distance (km) 1.364 km
    Relative Speed (km/s) 14.328 km/s
    Conjunction Risk Parameters R (Radial): 1.345 | I (In-track): 0.078 | C (Cross-track): -0.216
    Collision Risk Index (CRI) 0.54
    X Position (km) -3785.282 -3785.846
    Position Y (km) -5624.483 -5625.686
    Position Z (km) 1042.224 1042.534
    Velocity X (km/s) -0.228 4.243
    Velocity Y (km/s) 1.571 -3.801
    Velocity Z (km/s) 7.438 -5.07

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4C R/B STARLINK-5609
    Semimajor Axis (a) 6821.317 km 6861.161 km
    Eccentricity (e) 0.006100 0.000210
    Inclination (i) 97.9665° 42.9919°
    RAAN 235.3805° 76.4468°
    Perigee Argument 165.6371° 282.3836°
    Mean Anomaly (M) 194.6626° 77.6780°
    Apogee 484.791 km 484.466 km
    Perigee 401.569 km 481.582 km
    Orbit Epoch 2026-10-27T06:01:38+0000 2026-10-27T01:54:26+0000

    CZ-4C R/B & STARLINK-5609 Collision Probability (Pc) Trend

    CZ-4C R/B & STARLINK-5609 Collision Probability (Pc) TrendNot Available

    CZ-4C R/B & STARLINK-5609 Miss Distance (Miss Distance) Trend

    CZ-4C R/B & STARLINK-5609 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-5609Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4C R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5609Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4C R/B

    No nearby objects data