Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.899292E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-31T17:38:38+0800
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    1 Object 1

    AOE ID 55747
    NORAD ID 55747
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58702
    NORAD ID 58702
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-5539 TIANMU-1 17
    Time of Closest Approach 2026-11-01T19:08:45+0000
    Collision Probability (Pc) 1.899292E-6
    Conjunction Distance (km) 2.342 km
    Relative Speed (km/s) 13.704 km/s
    Conjunction Risk Parameters R (Radial): -1.466 | I (In-track): -0.793 | C (Cross-track): -1.643
    Collision Risk Index (CRI) 0.41
    X Position (km) -910.729 -909.853
    Position Y (km) 2276.817 2277.954
    Position Z (km) 6405.055 6403.205
    Velocity X (km/s) -7.537 5.031
    Velocity Y (km/s) -0.797 -5.133
    Velocity Z (km/s) -0.787 2.534

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5539 TIANMU-1 17
    Semimajor Axis (a) 6862.619 km 6860.699 km
    Eccentricity (e) 0.000442 0.000467
    Inclination (i) 69.9986° 97.4623°
    RAAN 9.0430° 129.8674°
    Perigee Argument 278.2193° 236.1488°
    Mean Anomaly (M) 182.0729° 123.9307°
    Apogee 487.516 km 485.766 km
    Perigee 481.448 km 479.358 km
    Orbit Epoch 2026-10-30T20:00:03+0000 2026-10-30T21:15:08+0000

    STARLINK-5539 & TIANMU-1 17 Collision Probability (Pc) Trend

    STARLINK-5539 & TIANMU-1 17 Collision Probability (Pc) TrendNot Available

    STARLINK-5539 & TIANMU-1 17 Miss Distance (Miss Distance) Trend

    STARLINK-5539 & TIANMU-1 17 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5539Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 17Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5539Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 17Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5539

    No nearby objects data