Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.794576E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T12:24:34+0800
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    1 Object 1

    AOE ID 30496
    NORAD ID 30496
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 55919
    NORAD ID 55919
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-5871
    Time of Closest Approach 2026-09-13T02:33:08+0000
    Collision Probability (Pc) 8.794576E-7
    Conjunction Distance (km) 2.397 km
    Relative Speed (km/s) 3.917 km/s
    Conjunction Risk Parameters R (Radial): -0.018 | I (In-track): 2.316 | C (Cross-track): 0.621
    Collision Risk Index (CRI) 0.34
    X Position (km) 6359.819 6359.102
    Position Y (km) 2060.885 2060.91
    Position Z (km) -1913.611 -1915.898
    Velocity X (km/s) -1.662 -2.682
    Velocity Y (km/s) -1.803 1.961
    Velocity Z (km/s) -7.163 -6.804

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-5871
    Semimajor Axis (a) 6949.820 km 6950.164 km
    Eccentricity (e) 0.011719 0.000322
    Inclination (i) 98.7902° 70.0001°
    RAAN 199.0233° 196.5997°
    Perigee Argument 290.4595° 275.5284°
    Mean Anomaly (M) 68.4075° 84.5508°
    Apogee 653.128 km 574.263 km
    Perigee 490.238 km 569.791 km
    Orbit Epoch 2026-09-11T19:13:08+0000 2026-09-11T06:24:57+0000

    FENGYUN 1C DEB & STARLINK-5871 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-5871 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-5871 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-5871 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5871Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5871Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data