Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.534388E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T20:14:47+0800
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    1 Object 1

    AOE ID 52693
    NORAD ID 52693
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 67300
    NORAD ID 67300
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-3946 TIANHUI 7
    Time of Closest Approach 2026-09-15T11:49:24+0000
    Collision Probability (Pc) 9.534388E-7
    Conjunction Distance (km) 2.834 km
    Relative Speed (km/s) 7.171 km/s
    Conjunction Risk Parameters R (Radial): -1.112 | I (In-track): 2.297 | C (Cross-track): 1.232
    Collision Risk Index (CRI) 0.35
    X Position (km) 5227.395 5228.18
    Position Y (km) -2071.044 -2070.444
    Position Z (km) -3958.727 -3956.071
    Velocity X (km/s) 4.823 3.574
    Velocity Y (km/s) 4.092 -2.703
    Velocity Z (km/s) 4.233 6.151

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3946 TIANHUI 7
    Semimajor Axis (a) 6872.291 km 6867.490 km
    Eccentricity (e) 0.000142 0.000586
    Inclination (i) 53.1603° 97.3958°
    RAAN 16.3488° 331.1487°
    Perigee Argument 93.9848° 85.4847°
    Mean Anomaly (M) 141.3936° 274.7061°
    Apogee 495.128 km 493.381 km
    Perigee 493.180 km 485.325 km
    Orbit Epoch 2026-09-14T04:00:03+0000 2026-09-13T11:10:34+0000

    STARLINK-3946 & TIANHUI 7 Collision Probability (Pc) Trend

    STARLINK-3946 & TIANHUI 7 Collision Probability (Pc) TrendNot Available

    STARLINK-3946 & TIANHUI 7 Miss Distance (Miss Distance) Trend

    STARLINK-3946 & TIANHUI 7 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3946Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANHUI 7Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3946Collision Probability Trend

    Object 1 Probability TrendNot Available

    TIANHUI 7Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3946

    No nearby objects data