Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.801712E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T01:00:46+0800
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    1 Object 1

    AOE ID 58030
    NORAD ID 58030
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58662
    NORAD ID 58662
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-30549 TIANMU-1 21
    Time of Closest Approach 2026-09-12T01:49:19+0000
    Collision Probability (Pc) 2.801712E-6
    Conjunction Distance (km) 1.869 km
    Relative Speed (km/s) 10.795 km/s
    Conjunction Risk Parameters R (Radial): -0.848 | I (In-track): 1.174 | C (Cross-track): -1.18
    Collision Risk Index (CRI) 0.44
    X Position (km) -4176.746 -4175.035
    Position Y (km) -439.246 -439.971
    Position Z (km) -5406.969 -5407.158
    Velocity X (km/s) 2.032 5.683
    Velocity Y (km/s) -7.283 2.221
    Velocity Z (km/s) -0.979 -4.567

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30549 TIANMU-1 21
    Semimajor Axis (a) 6840.891 km 6834.655 km
    Eccentricity (e) 0.000124 0.000708
    Inclination (i) 53.1589° 97.4584°
    RAAN 295.6367° 14.9611°
    Perigee Argument 108.1346° 19.8240°
    Mean Anomaly (M) 251.9791° 340.3277°
    Apogee 463.601 km 461.358 km
    Perigee 461.907 km 451.678 km
    Orbit Epoch 2026-09-11T02:48:17+0000 2026-09-11T07:37:08+0000

    STARLINK-30549 & TIANMU-1 21 Collision Probability (Pc) Trend

    STARLINK-30549 & TIANMU-1 21 Collision Probability (Pc) TrendNot Available

    STARLINK-30549 & TIANMU-1 21 Miss Distance (Miss Distance) Trend

    STARLINK-30549 & TIANMU-1 21 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30549Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 21Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30549Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30549

    No nearby objects data