Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.858905E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T14:45:25+0800
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    1 Object 1

    AOE ID 31820
    NORAD ID 31820
    Object Type DEBRIS
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 37875
    NORAD ID 37875
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB YAOGAN 12
    Time of Closest Approach 2026-09-12T03:47:48+0000
    Collision Probability (Pc) 3.858905E-5
    Conjunction Distance (km) 0.906 km
    Relative Speed (km/s) 15.141 km/s
    Conjunction Risk Parameters R (Radial): -0.747 | I (In-track): -0.082 | C (Cross-track): -0.504
    Collision Risk Index (CRI) 0.67
    X Position (km) 2353.266 2353.044
    Position Y (km) -6434.144 -6435.022
    Position Z (km) -418.835 -418.861
    Velocity X (km/s) -1.291 -0.729
    Velocity Y (km/s) 0.055 -0.756
    Velocity Z (km/s) -7.559 7.55

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB YAOGAN 12
    Semimajor Axis (a) 6946.082 km 6861.927 km
    Eccentricity (e) 0.013405 0.000811
    Inclination (i) 98.9417° 97.1079°
    RAAN 106.2377° 288.5253°
    Perigee Argument 219.4140° 280.2381°
    Mean Anomaly (M) 139.7268° 79.7944°
    Apogee 661.056 km 489.357 km
    Perigee 474.834 km 478.223 km
    Orbit Epoch 2026-09-08T07:42:06+0000 2026-09-10T23:30:34+0000

    FENGYUN 1C DEB & YAOGAN 12 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & YAOGAN 12 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & YAOGAN 12 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & YAOGAN 12 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YAOGAN 12Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    YAOGAN 12Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data