Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.782837E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T07:26:04+0800
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    1 Object 1

    AOE ID 31738
    NORAD ID 31738
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 65989
    NORAD ID 65989
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB SDA_1679
    Time of Closest Approach 2026-09-03T21:28:21+0000
    Collision Probability (Pc) 1.782837E-6
    Conjunction Distance (km) 2.476 km
    Relative Speed (km/s) 14.749 km/s
    Conjunction Risk Parameters R (Radial): -2.191 | I (In-track): -0.031 | C (Cross-track): 1.151
    Collision Risk Index (CRI) 0.4
    X Position (km) -4764.39 -4766.579
    Position Y (km) 4773.988 4774.567
    Position Z (km) -2859.197 -2860.198
    Velocity X (km/s) 2.77 -2.859
    Velocity Y (km/s) -0.936 1.15
    Velocity Z (km/s) -6.771 6.701

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB SDA_1679
    Semimajor Axis (a) 7320.491 km 7324.838 km
    Eccentricity (e) 0.030635 0.000373
    Inclination (i) 99.3431° 81.3039°
    RAAN 315.0827° 140.0070°
    Perigee Argument 121.7938° 13.0254°
    Mean Anomaly (M) 241.3443° 347.0999°
    Apogee 1166.617 km 949.431 km
    Perigee 718.091 km 943.971 km
    Orbit Epoch 2026-08-31T00:42:34+0000 2026-09-02T10:54:19+0000

    FENGYUN 1C DEB & SDA_1679 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & SDA_1679 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & SDA_1679 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & SDA_1679 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SDA_1679Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SDA_1679Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data