Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.675905E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T04:22:31+0800
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    1 Object 1

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

    2 Object 2

    AOE ID 68555
    NORAD ID 68555
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 21 STARLINK-37146
    Time of Closest Approach 2026-09-13T15:09:47+0000
    Collision Probability (Pc) 1.675905E-6
    Conjunction Distance (km) 2.563 km
    Relative Speed (km/s) 14.73 km/s
    Conjunction Risk Parameters R (Radial): 0.635 | I (In-track): 0.658 | C (Cross-track): -2.394
    Collision Risk Index (CRI) 0.39
    X Position (km) -6414.506 -6414.737
    Position Y (km) -1780.788 -1778.475
    Position Z (km) -1588.652 -1587.574
    Velocity X (km/s) 1.413 -0.084
    Velocity Y (km/s) 1.448 -4.904
    Velocity Z (km/s) -7.356 5.849

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 21 STARLINK-37146
    Semimajor Axis (a) 6834.643 km 6840.710 km
    Eccentricity (e) 0.000704 0.000184
    Inclination (i) 97.4585° 53.1586°
    RAAN 15.2252° 216.7484°
    Perigee Argument 18.9836° 215.1229°
    Mean Anomaly (M) 341.1670° 144.9652°
    Apogee 461.320 km 463.834 km
    Perigee 451.692 km 461.312 km
    Orbit Epoch 2026-09-11T13:52:16+0000 2026-09-11T06:57:48+0000

    TIANMU-1 21 & STARLINK-37146 Collision Probability (Pc) Trend

    TIANMU-1 21 & STARLINK-37146 Collision Probability (Pc) TrendNot Available

    TIANMU-1 21 & STARLINK-37146 Miss Distance (Miss Distance) Trend

    TIANMU-1 21 & STARLINK-37146 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37146Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37146Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 21

    No nearby objects data