Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.23582E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-11-03T07:25:52+0800
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    1 Object 1

    Name USA 18
    AOE ID 16631
    NORAD ID 16631
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 56018
    NORAD ID 56018
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 18 STARLINK-5945
    Time of Closest Approach 2026-11-03T08:44:23+0000
    Collision Probability (Pc) 1.23582E-6
    Conjunction Distance (km) 2.879 km
    Relative Speed (km/s) 11.76 km/s
    Conjunction Risk Parameters R (Radial): -2.678 | I (In-track): -0.603 | C (Cross-track): -0.865
    Collision Risk Index (CRI) 0.37
    X Position (km) -6092.623 -6089.905
    Position Y (km) 1823.736 1824.019
    Position Z (km) 2574.501 2573.596
    Velocity X (km/s) -3.873 -0.036
    Velocity Y (km/s) -2.806 -6.27
    Velocity Z (km/s) -6.22 4.343

    Orbital Parameters 国际轨道数据源

    Parameter USA 18 STARLINK-5945
    Semimajor Axis (a) 7292.038 km 6861.208 km
    Eccentricity (e) 0.073939 0.000116
    Inclination (i) 63.2968° 43.0028°
    RAAN 357.6093° 143.8940°
    Perigee Argument 115.2053° 241.2940°
    Mean Anomaly (M) 252.7507° 118.7794°
    Apogee 1453.065 km 483.870 km
    Perigee 374.737 km 482.272 km
    Orbit Epoch 2026-11-02T11:24:17+0000 2026-11-02T05:55:00+0000

    USA 18 & STARLINK-5945 Collision Probability (Pc) Trend

    USA 18 & STARLINK-5945 Collision Probability (Pc) TrendNot Available

    USA 18 & STARLINK-5945 Miss Distance (Miss Distance) Trend

    USA 18 & STARLINK-5945 Miss Distance (Miss Distance) TrendNot Available

    USA 18Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5945Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 18Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5945Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 18

    No nearby objects data