Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.484498E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T23:52:14+0800
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    1 Object 1

    AOE ID 53819
    NORAD ID 53819
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58663
    NORAD ID 58663
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4738 TIANMU-1 22
    Time of Closest Approach 2026-09-11T18:21:58+0000
    Collision Probability (Pc) 1.484498E-4
    Conjunction Distance (km) 0.571 km
    Relative Speed (km/s) 14.649 km/s
    Conjunction Risk Parameters R (Radial): -0.544 | I (In-track): -0.036 | C (Cross-track): -0.166
    Collision Risk Index (CRI) 0.78
    X Position (km) 6126.952 6126.474
    Position Y (km) 1594.04 1593.76
    Position Z (km) -2622.628 -2622.494
    Velocity X (km/s) -3.391 3.059
    Velocity Y (km/s) 4.231 -0.311
    Velocity Z (km/s) -5.363 6.979

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4738 TIANMU-1 22
    Semimajor Axis (a) 6848.866 km 6847.575 km
    Eccentricity (e) 0.000167 0.000453
    Inclination (i) 53.1585° 97.4571°
    RAAN 179.0953° 11.0152°
    Perigee Argument 91.7339° 50.9798°
    Mean Anomaly (M) 268.3854° 309.1846°
    Apogee 471.875 km 472.538 km
    Perigee 469.583 km 466.338 km
    Orbit Epoch 2026-09-11T04:55:54+0000 2026-09-11T07:29:34+0000

    STARLINK-4738 & TIANMU-1 22 Collision Probability (Pc) Trend

    STARLINK-4738 & TIANMU-1 22 Collision Probability (Pc) TrendNot Available

    STARLINK-4738 & TIANMU-1 22 Miss Distance (Miss Distance) Trend

    STARLINK-4738 & TIANMU-1 22 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4738Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 22Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4738Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 22Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4738

    No nearby objects data