Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.007777E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T17:36:35+0800
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    1 Object 1

    AOE ID 66748
    NORAD ID 66748
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 67457
    NORAD ID 67457
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter UMBRA-11 STARLINK-36529
    Time of Closest Approach 2026-09-11T14:09:58+0000
    Collision Probability (Pc) 1.007777E-5
    Conjunction Distance (km) 1.263 km
    Relative Speed (km/s) 11.468 km/s
    Conjunction Risk Parameters R (Radial): 0.907 | I (In-track): -0.584 | C (Cross-track): -0.655
    Collision Risk Index (CRI) 0.55
    X Position (km) -3954.09 -3954.648
    Position Y (km) 3100.626 3101.753
    Position Z (km) -4673.899 -4674.01
    Velocity X (km/s) 4.844 -4.519
    Velocity Y (km/s) -2.093 -6.128
    Velocity Z (km/s) -5.491 -0.242

    Orbital Parameters 国际轨道数据源

    Parameter UMBRA-11 STARLINK-36529
    Semimajor Axis (a) 6854.264 km 6861.147 km
    Eccentricity (e) 0.000242 0.000157
    Inclination (i) 97.4138° 43.0003°
    RAAN 328.0313° 248.0118°
    Perigee Argument 59.3272° 280.5544°
    Mean Anomaly (M) 300.8206° 79.5131°
    Apogee 477.786 km 484.090 km
    Perigee 474.468 km 481.930 km
    Orbit Epoch 2026-09-10T18:21:24+0000 2026-09-09T09:13:00+0000

    UMBRA-11 & STARLINK-36529 Collision Probability (Pc) Trend

    UMBRA-11 & STARLINK-36529 Collision Probability (Pc) TrendNot Available

    UMBRA-11 & STARLINK-36529 Miss Distance (Miss Distance) Trend

    UMBRA-11 & STARLINK-36529 Miss Distance (Miss Distance) TrendNot Available

    UMBRA-11Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36529Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36529Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with UMBRA-11

    No nearby objects data