Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.564179E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T01:11:38+0800
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    1 Object 1

    AOE ID 49415
    NORAD ID 49415
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58661
    NORAD ID 58661
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-3159 TIANMU-1 20
    Time of Closest Approach 2026-09-12T07:17:42+0000
    Collision Probability (Pc) 5.564179E-6
    Conjunction Distance (km) 1.47 km
    Relative Speed (km/s) 10.209 km/s
    Conjunction Risk Parameters R (Radial): -1.424 | I (In-track): 0.271 | C (Cross-track): -0.242
    Collision Risk Index (CRI) 0.5
    X Position (km) 3994.775 3995.449
    Position Y (km) 1627.902 1627.98
    Position Z (km) -5316.566 -5317.87
    Velocity X (km/s) -1.061 5.953
    Velocity Y (km/s) 7.405 0.731
    Velocity Z (km/s) 1.471 4.706

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3159 TIANMU-1 20
    Semimajor Axis (a) 6840.886 km 6842.194 km
    Eccentricity (e) 0.000121 0.000730
    Inclination (i) 53.1598° 97.4518°
    RAAN 96.0225° 11.8410°
    Perigee Argument 92.3843° 27.8978°
    Mean Anomaly (M) 267.7298° 332.2655°
    Apogee 463.578 km 469.055 km
    Perigee 461.920 km 459.059 km
    Orbit Epoch 2026-09-10T22:47:50+0000 2026-09-11T06:28:11+0000

    STARLINK-3159 & TIANMU-1 20 Collision Probability (Pc) Trend

    STARLINK-3159 & TIANMU-1 20 Collision Probability (Pc) TrendNot Available

    STARLINK-3159 & TIANMU-1 20 Miss Distance (Miss Distance) Trend

    STARLINK-3159 & TIANMU-1 20 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3159Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 20Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3159Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 20Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3159

    No nearby objects data