Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.42862E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T20:51:54+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 61894
    NORAD ID 61894
    Object Type UNKNOWN
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4777 OBJECT A
    Time of Closest Approach 2026-09-13T15:28:22+0000
    Collision Probability (Pc) 1.42862E-6
    Conjunction Distance (km) 2.817 km
    Relative Speed (km/s) 14.381 km/s
    Conjunction Risk Parameters R (Radial): 1.113 | I (In-track): 0.832 | C (Cross-track): 2.45
    Collision Risk Index (CRI) 0.38
    X Position (km) 4320.466 4322.152
    Position Y (km) -3746.98 -3745.411
    Position Z (km) 3883.289 3884.909
    Velocity X (km/s) 5.833 -3.964
    Velocity Y (km/s) 2.228 1.871
    Velocity Z (km/s) -4.326 6.194

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4777 OBJECT A
    Semimajor Axis (a) 6917.911 km 6905.597 km
    Eccentricity (e) 0.000168 0.001525
    Inclination (i) 53.1614° 97.4061°
    RAAN 176.3299° 322.8034°
    Perigee Argument 87.0402° 211.9665°
    Mean Anomaly (M) 273.0781° 148.0642°
    Apogee 540.934 km 537.989 km
    Perigee 538.614 km 516.931 km
    Orbit Epoch 2026-09-12T03:54:04+0000 2026-09-12T05:59:06+0000

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

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

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

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

    STARLINK-4777Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4777Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4777

    No nearby objects data