Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.26973E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-07-21T17:43:13+0800
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    1 Object 1

    AOE ID 31559
    NORAD ID 31559
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 44589
    NORAD ID 44589
    Object Type DEBRIS
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB CZ-4B DEB
    Time of Closest Approach 2026-07-22T08:08:05+0800
    Collision Probability (Pc) 5.26973E-7
    Miss Distance (km) 2.723 km
    Position X (km) 1148.667 1148.96
    Position Y (km) 1069.519 1070.099
    Position Z (km) 6888.897 6891.541
    Velocity X (km/s) 7.392 -0.378
    Velocity Y (km/s) -0.238 -7.369
    Velocity Z (km/s) -1.222 1.21

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB CZ-4B DEB
    Semimajor Axis (a) 7049.368 km 7018.833 km
    Eccentricity (e) 0.004994 0.008096
    Inclination (i) 98.8782° 98.7693°
    RAAN 178.4404° 83.9816°
    Perigee Argument 234.4805° 270.6069°
    Mean Anomaly (M) 154.4117° 88.5863°
    Apogee 706.438 km 697.518 km
    Perigee 636.024 km 583.874 km
    Orbit Epoch 2026-07-21T05:37:07+0800 2026-07-20T19:59:01+0800

    FENGYUN 1C DEB & CZ-4B DEB Collision Probability (Pc) Trend

    FENGYUN 1C DEB & CZ-4B DEB Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & CZ-4B DEB Miss Distance (Md) Trend

    FENGYUN 1C DEB & CZ-4B DEB Miss Distance (Md) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    CZ-4B DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    CZ-4B DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data