Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.492762E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-30T20:40:53+0800
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    1 Object 1

    AOE ID 31287
    NORAD ID 31287
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 43911
    NORAD ID 43911
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB YUNHAI 2-1C
    Time of Closest Approach 2026-10-30T23:20:41+0000
    Collision Probability (Pc) 1.492762E-6
    Conjunction Distance (km) 2.541 km
    Relative Speed (km/s) 11.806 km/s
    Conjunction Risk Parameters R (Radial): 2.535 | I (In-track): -0.104 | C (Cross-track): -0.136
    Collision Risk Index (CRI) 0.38
    X Position (km) -3466.844 -3468.062
    Position Y (km) -3032.085 -3033.01
    Position Z (km) 5486.954 5488.983
    Velocity X (km/s) -5.4 4.904
    Velocity Y (km/s) -2.208 -5.62
    Velocity Z (km/s) -4.649 -0.007

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB YUNHAI 2-1C
    Semimajor Axis (a) 7169.854 km 7172.960 km
    Eccentricity (e) 0.002843 0.000050
    Inclination (i) 99.3894° 50.0094°
    RAAN 28.4195° 135.2915°
    Perigee Argument 218.7151° 238.5359°
    Mean Anomaly (M) 141.1991° 121.5508°
    Apogee 812.104 km 795.181 km
    Perigee 771.330 km 794.465 km
    Orbit Epoch 2026-10-29T16:30:53+0000 2026-10-29T23:25:46+0000

    FENGYUN 1C DEB & YUNHAI 2-1C Collision Probability (Pc) Trend

    FENGYUN 1C DEB & YUNHAI 2-1C Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & YUNHAI 2-1C Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & YUNHAI 2-1C Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YUNHAI 2-1CMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    YUNHAI 2-1CCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data