Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    8.721123E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:31:14+0800
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    1 Object 1

    AOE ID 51779
    NORAD ID 51779
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53608
    NORAD ID 53608
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3611 STARLINK-4647
    Time of Closest Approach 2026-09-04T08:11:59+0000
    Collision Probability (Pc) 8.721123E-6
    Conjunction Distance (km) 1.271 km
    Relative Speed (km/s) 9.627 km/s
    Conjunction Risk Parameters R (Radial): 1.099 | I (In-track): -0.493 | C (Cross-track): -0.405
    Collision Risk Index (CRI) 0.54
    X Position (km) -1403.02 -1402.629
    Position Y (km) 5099.008 5099.994
    Position Z (km) -4342.292 -4342.992
    Velocity X (km/s) -4.897 -6.516
    Velocity Y (km/s) -4.513 1.373
    Velocity Z (km/s) -3.721 3.722

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3611 STARLINK-4647
    Semimajor Axis (a) 6837.878 km 6839.389 km
    Eccentricity (e) 0.000117 0.000160
    Inclination (i) 53.1593° 53.1615°
    RAAN 256.7318° 151.5506°
    Perigee Argument 89.6629° 4.5487°
    Mean Anomaly (M) 270.4508° 355.5530°
    Apogee 460.541 km 462.349 km
    Perigee 458.941 km 460.155 km
    Orbit Epoch 2026-09-02T08:19:29+0000 2026-09-02T14:13:50+0000

    STARLINK-3611 & STARLINK-4647 Collision Probability (Pc) Trend

    STARLINK-3611 & STARLINK-4647 Collision Probability (Pc) TrendNot Available

    STARLINK-3611 & STARLINK-4647 Miss Distance (Miss Distance) Trend

    STARLINK-3611 & STARLINK-4647 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3611Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4647Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3611Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4647Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3611

    No nearby objects data