Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.73654E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T16:36:41+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 58943
    NORAD ID 58943
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 21 STARLINK-31346
    Time of Closest Approach 2026-09-13T11:46:36+0000
    Collision Probability (Pc) 1.73654E-5
    Conjunction Distance (km) 1.123 km
    Relative Speed (km/s) 13.912 km/s
    Conjunction Risk Parameters R (Radial): 0.618 | I (In-track): -0.379 | C (Cross-track): -0.857
    Collision Risk Index (CRI) 0.6
    X Position (km) -4311.039 -4311.407
    Position Y (km) -2004.48 -2003.8
    Position Z (km) 4908.076 4908.89
    Velocity X (km/s) -5.496 5.301
    Velocity Y (km/s) -0.984 -4.798
    Velocity Z (km/s) -5.21 2.689

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 21 STARLINK-31346
    Semimajor Axis (a) 6834.670 km 6840.896 km
    Eccentricity (e) 0.000711 0.000192
    Inclination (i) 97.4582° 53.1604°
    RAAN 14.5651° 168.2701°
    Perigee Argument 21.2224° 95.7949°
    Mean Anomaly (M) 338.9314° 264.3273°
    Apogee 461.393 km 464.071 km
    Perigee 451.673 km 461.447 km
    Orbit Epoch 2026-09-10T22:14:27+0000 2026-09-10T11:35:21+0000

    TIANMU-1 21 & STARLINK-31346 Collision Probability (Pc) Trend

    TIANMU-1 21 & STARLINK-31346 Collision Probability (Pc) TrendNot Available

    TIANMU-1 21 & STARLINK-31346 Miss Distance (Miss Distance) Trend

    TIANMU-1 21 & STARLINK-31346 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 21Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31346Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 21Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31346Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 21

    No nearby objects data