Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.554073E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T21:26:53+0800
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    1 Object 1

    AOE ID 30815
    NORAD ID 30815
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 58201
    NORAD ID 58201
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB TIANHUI 5B
    Time of Closest Approach 2026-09-04T17:50:03+0000
    Collision Probability (Pc) 1.554073E-6
    Conjunction Distance (km) 2.689 km
    Relative Speed (km/s) 14.786 km/s
    Conjunction Risk Parameters R (Radial): -2.526 | I (In-track): 0.177 | C (Cross-track): 0.903
    Collision Risk Index (CRI) 0.39
    X Position (km) 721.971 722.622
    Position Y (km) 4949.415 4947.513
    Position Z (km) 4870.546 4868.761
    Velocity X (km/s) 0.944 2.17
    Velocity Y (km/s) -5.336 4.922
    Velocity Z (km/s) 5.268 -5.31

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB TIANHUI 5B
    Semimajor Axis (a) 6986.738 km 6983.640 km
    Eccentricity (e) 0.000238 0.000214
    Inclination (i) 99.2985° 97.8222°
    RAAN 90.0413° 251.7184°
    Perigee Argument 73.0297° 96.3126°
    Mean Anomaly (M) 87.9106° 263.8334°
    Apogee 610.265 km 606.996 km
    Perigee 606.937 km 604.010 km
    Orbit Epoch 2026-09-04T00:35:07+0000 2026-09-02T10:20:28+0000

    FENGYUN 1C DEB & TIANHUI 5B Collision Probability (Pc) Trend

    FENGYUN 1C DEB & TIANHUI 5B Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & TIANHUI 5B Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & TIANHUI 5B Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    TIANHUI 5BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    TIANHUI 5BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data