Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.489769E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T16:37:43+0800
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    1 Object 1

    AOE ID 58700
    NORAD ID 58700
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 59789
    NORAD ID 59789
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter TIANMU-1 15 STARLINK-31863
    Time of Closest Approach 2026-09-13T03:51:03+0000
    Collision Probability (Pc) 1.489769E-6
    Conjunction Distance (km) 2.7 km
    Relative Speed (km/s) 13.907 km/s
    Conjunction Risk Parameters R (Radial): -1.741 | I (In-track): 0.836 | C (Cross-track): -1.886
    Collision Risk Index (CRI) 0.38
    X Position (km) 357.668 355.871
    Position Y (km) 5985.68 5984.804
    Position Z (km) -3342.852 -3341.038
    Velocity X (km/s) 1.349 -6.489
    Velocity Y (km/s) 3.586 -1.645
    Velocity Z (km/s) 6.585 -3.641

    Orbital Parameters 国际轨道数据源

    Parameter TIANMU-1 15 STARLINK-31863
    Semimajor Axis (a) 6861.685 km 6861.206 km
    Eccentricity (e) 0.000821 0.000138
    Inclination (i) 97.4668° 43.0026°
    RAAN 80.1633° 249.3139°
    Perigee Argument 43.2490° 268.8738°
    Mean Anomaly (M) 316.9392° 91.1956°
    Apogee 489.182 km 484.018 km
    Perigee 477.914 km 482.120 km
    Orbit Epoch 2026-09-10T22:31:18+0000 2026-09-09T17:15:58+0000

    TIANMU-1 15 & STARLINK-31863 Collision Probability (Pc) Trend

    TIANMU-1 15 & STARLINK-31863 Collision Probability (Pc) TrendNot Available

    TIANMU-1 15 & STARLINK-31863 Miss Distance (Miss Distance) Trend

    TIANMU-1 15 & STARLINK-31863 Miss Distance (Miss Distance) TrendNot Available

    TIANMU-1 15Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31863Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    TIANMU-1 15Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31863Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with TIANMU-1 15

    No nearby objects data