Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.372022E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T08:05:54+0800
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    1 Object 1

    AOE ID 53847
    NORAD ID 53847
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69539
    NORAD ID 69539
    Object Type UNKNOWN
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4777 OBJECT B
    Time of Closest Approach 2026-09-14T05:49:07+0000
    Collision Probability (Pc) 1.372022E-6
    Conjunction Distance (km) 2.917 km
    Relative Speed (km/s) 14.531 km/s
    Conjunction Risk Parameters R (Radial): -2.896 | I (In-track): 0.091 | C (Cross-track): 0.326
    Collision Risk Index (CRI) 0.38
    X Position (km) 4906.393 4904.458
    Position Y (km) -3632.467 -3630.66
    Position Z (km) 3245.675 3244.452
    Velocity X (km/s) 5.179 -3.52
    Velocity Y (km/s) 2.583 1.173
    Velocity Z (km/s) -4.92 6.632

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4777 OBJECT B
    Semimajor Axis (a) 6917.902 km 6918.299 km
    Eccentricity (e) 0.000161 0.001539
    Inclination (i) 53.1594° 97.6921°
    RAAN 179.3066° 324.4814°
    Perigee Argument 83.7370° 343.8609°
    Mean Anomaly (M) 276.3805° 16.2127°
    Apogee 540.877 km 550.813 km
    Perigee 538.653 km 529.511 km
    Orbit Epoch 2026-09-11T12:00:12+0000 2026-09-11T02:52:54+0000

    STARLINK-4777 & OBJECT B Collision Probability (Pc) Trend

    STARLINK-4777 & OBJECT B Collision Probability (Pc) TrendNot Available

    STARLINK-4777 & OBJECT B Miss Distance (Miss Distance) Trend

    STARLINK-4777 & OBJECT B Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4777Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4777Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4777

    No nearby objects data