Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.085888E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T15:16:23+0800
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    1 Object 1

    AOE ID 30520
    NORAD ID 30520
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 53189
    NORAD ID 53189
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-4391
    Time of Closest Approach 2026-10-29T07:19:13+0000
    Collision Probability (Pc) 4.085888E-6
    Conjunction Distance (km) 1.766 km
    Relative Speed (km/s) 15.101 km/s
    Conjunction Risk Parameters R (Radial): 0.673 | I (In-track): 0.242 | C (Cross-track): -1.613
    Collision Risk Index (CRI) 0.47
    X Position (km) 6220.717 6221.153
    Position Y (km) -627.061 -628.745
    Position Z (km) 2780.341 2780.641
    Velocity X (km/s) 2.962 -3.173
    Velocity Y (km/s) -1.569 -0.744
    Velocity Z (km/s) -6.87 6.904

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-4391
    Semimajor Axis (a) 6861.179 km 6843.700 km
    Eccentricity (e) 0.005314 0.000068
    Inclination (i) 98.6951° 97.2846°
    RAAN 167.4857° 355.1060°
    Perigee Argument 103.1298° 125.9688°
    Mean Anomaly (M) 257.5876° 234.1618°
    Apogee 519.506 km 466.029 km
    Perigee 446.578 km 465.097 km
    Orbit Epoch 2026-10-26T20:28:49+0000 2026-10-26T21:16:07+0000

    FENGYUN 1C DEB & STARLINK-4391 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-4391 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-4391 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-4391 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4391Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4391Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data