Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.093583E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T13:11:11+0800
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    1 Object 1

    AOE ID 20788
    NORAD ID 20788
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 49113
    NORAD ID 49113
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1B PAYLOAD B
    Time of Closest Approach 2026-09-12T08:18:15+0000
    Collision Probability (Pc) 3.093583E-6
    Conjunction Distance (km) 1.941 km
    Relative Speed (km/s) 14.793 km/s
    Conjunction Risk Parameters R (Radial): 0.439 | I (In-track): 0.132 | C (Cross-track): 1.886
    Collision Risk Index (CRI) 0.45
    X Position (km) -3436.894 -3438.568
    Position Y (km) -3316.1 -3315.126
    Position Z (km) 5450.582 5450.702
    Velocity X (km/s) 2.689 -3.506
    Velocity Y (km/s) 5.038 -4.361
    Velocity Z (km/s) 4.739 -4.857

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1B PAYLOAD B
    Semimajor Axis (a) 7260.839 km 7239.272 km
    Eccentricity (e) 0.001715 0.001759
    Inclination (i) 98.9832° 86.4004°
    RAAN 232.8884° 48.6234°
    Perigee Argument 94.3310° 302.1381°
    Mean Anomaly (M) 265.9816° 57.8094°
    Apogee 895.153 km 873.870 km
    Perigee 870.251 km 848.400 km
    Orbit Epoch 2026-09-10T20:07:54+0000 2026-09-10T23:18:41+0000

    FENGYUN 1B & PAYLOAD B Collision Probability (Pc) Trend

    FENGYUN 1B & PAYLOAD B Collision Probability (Pc) TrendNot Available

    FENGYUN 1B & PAYLOAD B Miss Distance (Miss Distance) Trend

    FENGYUN 1B & PAYLOAD B Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1BMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PAYLOAD BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1BCollision Probability Trend

    Object 1 Probability TrendNot Available

    PAYLOAD BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1B

    No nearby objects data