Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.797151E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T10:48:45+0800
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    1 Object 1

    AOE ID 58140
    NORAD ID 58140
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58703
    NORAD ID 58703
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-30780 TIANMU-1 18
    Time of Closest Approach 2026-09-04T02:26:21+0000
    Collision Probability (Pc) 1.797151E-6
    Conjunction Distance (km) 2.392 km
    Relative Speed (km/s) 13.395 km/s
    Conjunction Risk Parameters R (Radial): -2.367 | I (In-track): -0.155 | C (Cross-track): -0.299
    Collision Risk Index (CRI) 0.4
    X Position (km) -1044.77 -1044.889
    Position Y (km) -5366.286 -5368.31
    Position Z (km) 4136.998 4138.265
    Velocity X (km/s) 7.219 -2.089
    Velocity Y (km/s) 0.464 -4.23
    Velocity Z (km/s) 2.42 -5.991

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30780 TIANMU-1 18
    Semimajor Axis (a) 6861.225 km 6861.880 km
    Eccentricity (e) 0.000135 0.000641
    Inclination (i) 43.0009° 97.4672°
    RAAN 216.5744° 71.8214°
    Perigee Argument 274.3097° 70.7638°
    Mean Anomaly (M) 85.7601° 289.4294°
    Apogee 484.014 km 488.144 km
    Perigee 482.162 km 479.342 km
    Orbit Epoch 2026-09-01T23:57:05+0000 2026-09-02T15:13:36+0000

    STARLINK-30780 & TIANMU-1 18 Collision Probability (Pc) Trend

    STARLINK-30780 & TIANMU-1 18 Collision Probability (Pc) TrendNot Available

    STARLINK-30780 & TIANMU-1 18 Miss Distance (Miss Distance) Trend

    STARLINK-30780 & TIANMU-1 18 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30780Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANMU-1 18Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30780Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANMU-1 18Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30780

    No nearby objects data