Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.797158E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T23:53:58+0800
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    1 Object 1

    AOE ID 53781
    NORAD ID 53781
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

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

    Conjunction Constraints

    Parameter STARLINK-4462 UMBRA-11
    Time of Closest Approach 2026-09-12T11:58:35+0000
    Collision Probability (Pc) 1.797158E-6
    Conjunction Distance (km) 2.465 km
    Relative Speed (km/s) 14.744 km/s
    Conjunction Risk Parameters R (Radial): -2.402 | I (In-track): -0.144 | C (Cross-track): 0.532
    Collision Risk Index (CRI) 0.4
    X Position (km) -5859.275 -5856.977
    Position Y (km) 3511.851 3511.07
    Position Z (km) -643.803 -643.374
    Velocity X (km/s) -2.843 1.108
    Velocity Y (km/s) -3.647 0.487
    Velocity Z (km/s) 6.062 -7.527

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4462 UMBRA-11
    Semimajor Axis (a) 6860.290 km 6854.219 km
    Eccentricity (e) 0.000188 0.000243
    Inclination (i) 53.1601° 97.4137°
    RAAN 158.5116° 328.4230°
    Perigee Argument 66.2657° 57.1900°
    Mean Anomaly (M) 351.9928° 302.9574°
    Apogee 483.443 km 477.745 km
    Perigee 480.863 km 474.419 km
    Orbit Epoch 2026-09-11T08:00:04+0000 2026-09-11T03:46:30+0000

    STARLINK-4462 & UMBRA-11 Collision Probability (Pc) Trend

    STARLINK-4462 & UMBRA-11 Collision Probability (Pc) TrendNot Available

    STARLINK-4462 & UMBRA-11 Miss Distance (Miss Distance) Trend

    STARLINK-4462 & UMBRA-11 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4462Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    UMBRA-11Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4462Collision Probability Trend

    Object 1 Probability TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4462

    No nearby objects data