Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.968769E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T20:56:04+0800
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    1 Object 1

    AOE ID 55309
    NORAD ID 55309
    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-5315 UMBRA-11
    Time of Closest Approach 2026-10-20T01:02:18+0000
    Collision Probability (Pc) 2.968769E-5
    Conjunction Distance (km) 0.972 km
    Relative Speed (km/s) 14.61 km/s
    Conjunction Risk Parameters R (Radial): -0.75 | I (In-track): -0.16 | C (Cross-track): -0.595
    Collision Risk Index (CRI) 0.64
    X Position (km) 2855.711 2855.302
    Position Y (km) 1166.803 1166.086
    Position Z (km) -6124.341 -6123.828
    Velocity X (km/s) -6.278 6.858
    Velocity Y (km/s) 3.694 0.442
    Velocity Z (km/s) -2.224 3.281

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5315 UMBRA-11
    Semimajor Axis (a) 6852.720 km 6849.550 km
    Eccentricity (e) 0.000286 0.000137
    Inclination (i) 69.9963° 97.4084°
    RAAN 158.9657° 6.1441°
    Perigee Argument 269.0883° 206.3452°
    Mean Anomaly (M) 90.9966° 153.7720°
    Apogee 476.541 km 472.351 km
    Perigee 472.625 km 470.475 km
    Orbit Epoch 2026-10-18T21:16:26+0000 2026-10-18T22:39:39+0000

    STARLINK-5315 & UMBRA-11 Collision Probability (Pc) Trend

    STARLINK-5315 & UMBRA-11 Collision Probability (Pc) TrendNot Available

    STARLINK-5315 & UMBRA-11 Miss Distance (Miss Distance) Trend

    STARLINK-5315 & UMBRA-11 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5315Miss 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-5315Collision Probability Trend

    Object 1 Probability TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5315

    No nearby objects data