Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.712192E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T14:15:49+0800
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    1 Object 1

    AOE ID 28415
    NORAD ID 28415
    Object Type ROCKET BODY
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 68853
    NORAD ID 68853
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter CZ-4B R/B STARLINK-37476
    Time of Closest Approach 2026-09-13T21:29:33+0000
    Collision Probability (Pc) 5.712192E-7
    Conjunction Distance (km) 2.742 km
    Relative Speed (km/s) 2.486 km/s
    Conjunction Risk Parameters R (Radial): 1.456 | I (In-track): -2.292 | C (Cross-track): 0.372
    Collision Risk Index (CRI) 0.3
    X Position (km) -866.802 -866.594
    Position Y (km) -162.558 -164.882
    Position Z (km) 6776.474 6777.913
    Velocity X (km/s) -2.473 -0.04
    Velocity Y (km/s) 7.226 7.632
    Velocity Z (km/s) -0.121 0.18

    Orbital Parameters 国际轨道数据源

    Parameter CZ-4B R/B STARLINK-37476
    Semimajor Axis (a) 6848.791 km 6843.672 km
    Eccentricity (e) 0.003075 0.000174
    Inclination (i) 97.3314° 97.2840°
    RAAN 287.7669° 269.2113°
    Perigee Argument 26.7163° 78.9572°
    Mean Anomaly (M) 333.5655° 281.1866°
    Apogee 491.712 km 466.726 km
    Perigee 449.596 km 464.344 km
    Orbit Epoch 2026-09-12T15:18:33+0000 2026-09-12T23:10:55+0000

    CZ-4B R/B & STARLINK-37476 Collision Probability (Pc) Trend

    CZ-4B R/B & STARLINK-37476 Collision Probability (Pc) TrendNot Available

    CZ-4B R/B & STARLINK-37476 Miss Distance (Miss Distance) Trend

    CZ-4B R/B & STARLINK-37476 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-37476Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    CZ-4B R/BCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37476Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with CZ-4B R/B

    No nearby objects data