Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.645198E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T22:18:46+0800
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    1 Object 1

    AOE ID 52650
    NORAD ID 52650
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 66062
    NORAD ID 66062
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3891 STARLINK-35421
    Time of Closest Approach 2026-09-06T09:55:10+0000
    Collision Probability (Pc) 5.645198E-7
    Conjunction Distance (km) 2.884 km
    Relative Speed (km/s) 2.748 km/s
    Conjunction Risk Parameters R (Radial): -2.866 | I (In-track): -0.298 | C (Cross-track): -0.059
    Collision Risk Index (CRI) 0.3
    X Position (km) -2878.723 -2879.709
    Position Y (km) -3010.126 -3011.597
    Position Z (km) 5413.114 5415.389
    Velocity X (km/s) 6.186 4.68
    Velocity Y (km/s) -4.405 -5.98
    Velocity Z (km/s) 0.838 -0.835

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3891 STARLINK-35421
    Semimajor Axis (a) 6837.865 km 6840.848 km
    Eccentricity (e) 0.000113 0.000122
    Inclination (i) 53.1605° 53.1552°
    RAAN 156.9758° 129.4985°
    Perigee Argument 89.9689° 89.0503°
    Mean Anomaly (M) 270.1443° 271.0639°
    Apogee 460.499 km 463.545 km
    Perigee 458.957 km 461.877 km
    Orbit Epoch 2026-09-04T18:30:29+0000 2026-09-05T02:13:49+0000

    STARLINK-3891 & STARLINK-35421 Collision Probability (Pc) Trend

    STARLINK-3891 & STARLINK-35421 Collision Probability (Pc) TrendNot Available

    STARLINK-3891 & STARLINK-35421 Miss Distance (Miss Distance) Trend

    STARLINK-3891 & STARLINK-35421 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3891Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35421Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3891Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3891

    No nearby objects data