Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.310075E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T13:33:57+0800
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    1 Object 1

    AOE ID 29771
    NORAD ID 29771
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59299
    NORAD ID 59299
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-31409
    Time of Closest Approach 2026-10-21T15:57:34+0000
    Collision Probability (Pc) 1.310075E-5
    Conjunction Distance (km) 1.226 km
    Relative Speed (km/s) 14.423 km/s
    Conjunction Risk Parameters R (Radial): 0.288 | I (In-track): 0.391 | C (Cross-track): 1.126
    Collision Risk Index (CRI) 0.57
    X Position (km) 5343.375 5343.032
    Position Y (km) 4151.133 4152.189
    Position Z (km) 1119.912 1119.391
    Velocity X (km/s) 1.772 -4.132
    Velocity Y (km/s) -0.257 3.948
    Velocity Z (km/s) -7.417 5.053

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-31409
    Semimajor Axis (a) 6865.170 km 6861.172 km
    Eccentricity (e) 0.001185 0.000294
    Inclination (i) 99.6058° 43.0063°
    RAAN 214.6823° 32.8142°
    Perigee Argument 143.9429° 304.6717°
    Mean Anomaly (M) 216.2604° 55.3858°
    Apogee 495.171 km 485.052 km
    Perigee 478.895 km 481.018 km
    Orbit Epoch 2026-10-20T10:53:57+0000 2026-10-20T17:55:47+0000

    FENGYUN 1C DEB & STARLINK-31409 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-31409 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-31409 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-31409 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31409Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31409Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data