Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.603542E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-10T23:28:55+0800
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    1 Object 1

    AOE ID 51719
    NORAD ID 51719
    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-3540 TIANMU-1 21
    Time of Closest Approach 2026-09-12T03:12:23+0000
    Collision Probability (Pc) 2.603542E-6
    Conjunction Distance (km) 2.074 km
    Relative Speed (km/s) 14.738 km/s
    Conjunction Risk Parameters R (Radial): 2.074 | I (In-track): 0.017 | C (Cross-track): 0.044
    Collision Risk Index (CRI) 0.43
    X Position (km) -6498.012 -6496.059
    Position Y (km) -1648.389 -1647.851
    Position Z (km) -1388.236 -1387.795
    Velocity X (km/s) -0.032 1.231
    Velocity Y (km/s) -4.827 1.355
    Velocity Z (km/s) 5.911 -7.407

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3540 TIANMU-1 21
    Semimajor Axis (a) 6843.369 km 6834.698 km
    Eccentricity (e) 0.000145 0.000717
    Inclination (i) 53.1603° 97.4580°
    RAAN 218.3708° 13.9049°
    Perigee Argument 90.3878° 23.4748°
    Mean Anomaly (M) 269.7290° 336.6822°
    Apogee 466.227 km 461.463 km
    Perigee 464.237 km 451.659 km
    Orbit Epoch 2026-09-08T21:03:52+0000 2026-09-10T06:36:38+0000

    STARLINK-3540 & TIANMU-1 21 Collision Probability (Pc) Trend

    STARLINK-3540 & TIANMU-1 21 Collision Probability (Pc) TrendNot Available

    STARLINK-3540 & TIANMU-1 21 Miss Distance (Miss Distance) Trend

    STARLINK-3540 & TIANMU-1 21 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3540Miss 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-3540Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3540

    No nearby objects data