Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.22675E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T08:06:54+0800
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    1 Object 1

    AOE ID 51852
    NORAD ID 51852
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 62680
    NORAD ID 62680
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3542 FLOCK 4G 18
    Time of Closest Approach 2026-09-13T22:52:55+0000
    Collision Probability (Pc) 3.22675E-6
    Conjunction Distance (km) 1.813 km
    Relative Speed (km/s) 11.802 km/s
    Conjunction Risk Parameters R (Radial): -1.629 | I (In-track): 0.503 | C (Cross-track): -0.614
    Collision Risk Index (CRI) 0.45
    X Position (km) -3512.323 -3511.317
    Position Y (km) 2129.717 2128.53
    Position Z (km) -5477.377 -5476.447
    Velocity X (km/s) -3.865 5.942
    Velocity Y (km/s) -6.571 -1.689
    Velocity Z (km/s) -0.077 -4.466

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3542 FLOCK 4G 18
    Semimajor Axis (a) 6840.875 km 6835.643 km
    Eccentricity (e) 0.000111 0.000451
    Inclination (i) 53.1587° 97.3964°
    RAAN 251.7756° 335.9618°
    Perigee Argument 86.9591° 34.0825°
    Mean Anomaly (M) 273.1538° 326.0708°
    Apogee 463.496 km 460.587 km
    Perigee 461.980 km 454.425 km
    Orbit Epoch 2026-09-11T10:18:33+0000 2026-09-11T04:12:38+0000

    STARLINK-3542 & FLOCK 4G 18 Collision Probability (Pc) Trend

    STARLINK-3542 & FLOCK 4G 18 Collision Probability (Pc) TrendNot Available

    STARLINK-3542 & FLOCK 4G 18 Miss Distance (Miss Distance) Trend

    STARLINK-3542 & FLOCK 4G 18 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3542Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4G 18Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3542Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4G 18Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3542

    No nearby objects data