Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.35842E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-24T21:16:24+0800
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    1 Object 1

    AOE ID 31281
    NORAD ID 31281
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 53819
    NORAD ID 53819
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-4738
    Time of Closest Approach 2026-10-25T01:02:23+0000
    Collision Probability (Pc) 1.35842E-4
    Conjunction Distance (km) 0.586 km
    Relative Speed (km/s) 14.167 km/s
    Conjunction Risk Parameters R (Radial): -0.512 | I (In-track): -0.108 | C (Cross-track): -0.261
    Collision Risk Index (CRI) 0.78
    X Position (km) 1870.942 1870.624
    Position Y (km) -4698.873 -4698.708
    Position Z (km) -4625.802 -4625.339
    Velocity X (km/s) -3.25 6.864
    Velocity Y (km/s) 4.095 -0.492
    Velocity Z (km/s) -5.517 3.279

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-4738
    Semimajor Axis (a) 6811.778 km 6848.871 km
    Eccentricity (e) 0.006360 0.000069
    Inclination (i) 98.3997° 53.1583°
    RAAN 117.6368° 339.2053°
    Perigee Argument 81.6884° 51.4872°
    Mean Anomaly (M) 279.1566° 308.6191°
    Apogee 476.963 km 471.208 km
    Perigee 390.319 km 470.260 km
    Orbit Epoch 2026-10-23T10:45:38+0000 2026-10-24T03:21:58+0000

    FENGYUN 1C DEB & STARLINK-4738 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-4738 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-4738 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-4738 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4738Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4738Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data