Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.603305E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T21:45:37+0800
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    1 Object 1

    AOE ID 53590
    NORAD ID 53590
    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-4689 FLOCK 4G 18
    Time of Closest Approach 2026-10-28T17:50:39+0000
    Collision Probability (Pc) 1.603305E-6
    Conjunction Distance (km) 2.608 km
    Relative Speed (km/s) 14.359 km/s
    Conjunction Risk Parameters R (Radial): -1.988 | I (In-track): -0.588 | C (Cross-track): -1.581
    Collision Risk Index (CRI) 0.39
    X Position (km) 5117.889 5117.335
    Position Y (km) 1670.349 1668.618
    Position Z (km) 4197.131 4195.261
    Velocity X (km/s) 1.104 -4.029
    Velocity Y (km/s) 6.474 -2.625
    Velocity Z (km/s) -3.912 5.94

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4689 FLOCK 4G 18
    Semimajor Axis (a) 6832.334 km 6824.257 km
    Eccentricity (e) 0.000130 0.000454
    Inclination (i) 53.1600° 97.3921°
    RAAN 237.7259° 23.0729°
    Perigee Argument 106.1578° 202.5359°
    Mean Anomaly (M) 125.0652° 157.5688°
    Apogee 455.088 km 449.221 km
    Perigee 453.306 km 443.019 km
    Orbit Epoch 2026-10-27T22:00:02+0000 2026-10-27T22:57:55+0000

    STARLINK-4689 & FLOCK 4G 18 Collision Probability (Pc) Trend

    STARLINK-4689 & FLOCK 4G 18 Collision Probability (Pc) TrendNot Available

    STARLINK-4689 & FLOCK 4G 18 Miss Distance (Miss Distance) Trend

    STARLINK-4689 & FLOCK 4G 18 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4689Miss 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-4689Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4G 18Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4689

    No nearby objects data