Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.588901E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T15:46:22+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) 1.588901E-4
    Conjunction Distance (km) 0.556 km
    Relative Speed (km/s) 14.649 km/s
    Conjunction Risk Parameters R (Radial): 0.54 | I (In-track): 0.043 | C (Cross-track): -0.121
    Collision Risk Index (CRI) 0.79
    X Position (km) 6126.815 6126.339
    Position Y (km) 1594.006 1593.764
    Position Z (km) -2622.892 -2622.74
    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) 6848.873 km 6847.589 km
    Eccentricity (e) 0.000164 0.000456
    Inclination (i) 53.1590° 97.4570°
    RAAN 184.8669° 10.6207°
    Perigee Argument 89.3910° 52.0308°
    Mean Anomaly (M) 270.7280° 308.1344°
    Apogee 471.860 km 472.572 km
    Perigee 469.612 km 466.332 km
    Orbit Epoch 2026-09-09T23:10:39+0000 2026-09-10T22:05:17+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