Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    5.880696E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:24:36+0800
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    1 Object 1

    AOE ID 31311
    NORAD ID 31311
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 43253
    NORAD ID 43253
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB IRIDIUM 145
    Time of Closest Approach 2026-10-29T01:23:17+0000
    Collision Probability (Pc) 5.880696E-5
    Conjunction Distance (km) 0.79 km
    Relative Speed (km/s) 14.656 km/s
    Conjunction Risk Parameters R (Radial): -0.53 | I (In-track): -0.12 | C (Cross-track): 0.573
    Collision Risk Index (CRI) 0.7
    X Position (km) 761.424 761.876
    Position Y (km) 1810.672 1810.38
    Position Z (km) -6889.707 -6890.286
    Velocity X (km/s) 6.156 -4.279
    Velocity Y (km/s) 3.851 -5.764
    Velocity Z (km/s) 1.68 -1.988

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB IRIDIUM 145
    Semimajor Axis (a) 7163.279 km 7155.805 km
    Eccentricity (e) 0.001906 0.000220
    Inclination (i) 98.8446° 86.3975°
    RAAN 32.2578° 235.2459°
    Perigee Argument 225.9266° 89.6610°
    Mean Anomaly (M) 155.6653° 270.4839°
    Apogee 798.795 km 779.246 km
    Perigee 771.489 km 776.090 km
    Orbit Epoch 2026-10-27T06:14:46+0000 2026-10-27T01:19:15+0000

    FENGYUN 1C DEB & IRIDIUM 145 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & IRIDIUM 145 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & IRIDIUM 145 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & IRIDIUM 145 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 145Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 145Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data