Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.098216E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T06:29:26+0800
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    1 Object 1

    Name USA 55
    AOE ID 20547
    NORAD ID 20547
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 64256
    NORAD ID 64256
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 55 STARLINK-34329
    Time of Closest Approach 2026-10-20T13:29:45+0000
    Collision Probability (Pc) 1.098216E-6
    Conjunction Distance (km) 2.852 km
    Relative Speed (km/s) 9.357 km/s
    Conjunction Risk Parameters R (Radial): -0.55 | I (In-track): 2.205 | C (Cross-track): -1.722
    Collision Risk Index (CRI) 0.36
    X Position (km) 3824.148 3826.768
    Position Y (km) 2146.733 2146.532
    Position Z (km) -5255.942 -5254.833
    Velocity X (km/s) -4.659 -5.289
    Velocity Y (km/s) -3.589 5.215
    Velocity Z (km/s) -4.826 -1.723

    Orbital Parameters 国际轨道数据源

    Parameter USA 55 STARLINK-34329
    Semimajor Axis (a) 6808.568 km 6840.803 km
    Eccentricity (e) 0.005447 0.000092
    Inclination (i) 94.1005° 53.1593°
    RAAN 213.6308° 152.6254°
    Perigee Argument 17.7762° 98.7821°
    Mean Anomaly (M) 342.5383° 261.3285°
    Apogee 467.516 km 463.293 km
    Perigee 393.346 km 462.039 km
    Orbit Epoch 2026-10-19T11:38:07+0000 2026-10-19T00:26:31+0000

    USA 55 & STARLINK-34329 Collision Probability (Pc) Trend

    USA 55 & STARLINK-34329 Collision Probability (Pc) TrendNot Available

    USA 55 & STARLINK-34329 Miss Distance (Miss Distance) Trend

    USA 55 & STARLINK-34329 Miss Distance (Miss Distance) TrendNot Available

    USA 55Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34329Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 55Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34329Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 55

    No nearby objects data