Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.933377E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T08:00:45+0800
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    1 Object 1

    AOE ID 48865
    NORAD ID 48865
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

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

    Conjunction Constraints

    Parameter COSMOS 2550 TIANMU-1 20
    Time of Closest Approach 2026-09-15T05:04:16+0000
    Collision Probability (Pc) 4.933377E-6
    Conjunction Distance (km) 1.658 km
    Relative Speed (km/s) 15.09 km/s
    Conjunction Risk Parameters R (Radial): 1.104 | I (In-track): -0.197 | C (Cross-track): 1.222
    Collision Risk Index (CRI) 0.49
    X Position (km) -5793.739 -5794.924
    Position Y (km) -2052.208 -2051.369
    Position Z (km) 3009.765 3010.565
    Velocity X (km/s) 3.958 -3.51
    Velocity Y (km/s) -2.099 -0.074
    Velocity Z (km/s) 6.179 -6.775

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2550 TIANMU-1 20
    Semimajor Axis (a) 6842.514 km 6842.107 km
    Eccentricity (e) 0.000835 0.000708
    Inclination (i) 67.1433° 97.4523°
    RAAN 192.3312° 14.1446°
    Perigee Argument 268.4116° 20.1723°
    Mean Anomaly (M) 91.6081° 339.9798°
    Apogee 470.094 km 468.814 km
    Perigee 458.660 km 459.126 km
    Orbit Epoch 2026-09-13T15:23:17+0000 2026-09-13T13:15:55+0000

    COSMOS 2550 & TIANMU-1 20 Collision Probability (Pc) Trend

    COSMOS 2550 & TIANMU-1 20 Collision Probability (Pc) TrendNot Available

    COSMOS 2550 & TIANMU-1 20 Miss Distance (Miss Distance) Trend

    COSMOS 2550 & TIANMU-1 20 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2550Miss 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

    COSMOS 2550Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 20Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2550

    No nearby objects data