Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.462289E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T23:17:09+0800
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    1 Object 1

    AOE ID 29887
    NORAD ID 29887
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 55393
    NORAD ID 55393
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-4786
    Time of Closest Approach 2026-10-29T07:54:44+0000
    Collision Probability (Pc) 1.462289E-5
    Conjunction Distance (km) 1.198 km
    Relative Speed (km/s) 15.03 km/s
    Conjunction Risk Parameters R (Radial): 1.052 | I (In-track): -0.097 | C (Cross-track): -0.566
    Collision Risk Index (CRI) 0.58
    X Position (km) -3075.568 -3076.26
    Position Y (km) -2917.151 -2917.084
    Position Z (km) 5501.659 5502.635
    Velocity X (km/s) -5.584 6.529
    Velocity Y (km/s) -2.671 0.341
    Velocity Z (km/s) -4.549 3.823

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-4786
    Semimajor Axis (a) 7151.890 km 6950.195 km
    Eccentricity (e) 0.028280 0.000275
    Inclination (i) 98.7042° 69.9999°
    RAAN 29.8864° 201.1814°
    Perigee Argument 137.5717° 272.0257°
    Mean Anomaly (M) 254.3090° 88.0587°
    Apogee 976.007 km 573.971 km
    Perigee 571.499 km 570.145 km
    Orbit Epoch 2026-10-27T05:16:54+0000 2026-10-26T23:34:42+0000

    FENGYUN 1C DEB & STARLINK-4786 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-4786 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-4786 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-4786 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4786Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4786Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data