Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.184486E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T23:32:10+0800
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    1 Object 1

    AOE ID 31877
    NORAD ID 31877
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 59580
    NORAD ID 59580
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FENGYUN 1C DEB STARLINK-31668
    Time of Closest Approach 2026-10-28T13:20:18+0000
    Collision Probability (Pc) 1.184486E-6
    Conjunction Distance (km) 2.744 km
    Relative Speed (km/s) 9.748 km/s
    Conjunction Risk Parameters R (Radial): -1.367 | I (In-track): -1.822 | C (Cross-track): 1.529
    Collision Risk Index (CRI) 0.36
    X Position (km) 1226.365 1226.937
    Position Y (km) 5279.341 5276.784
    Position Z (km) -4208.707 -4209.519
    Velocity X (km/s) 2.52 -6.48
    Velocity Y (km/s) 4.145 3.313
    Velocity Z (km/s) 5.916 2.266

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB STARLINK-31668
    Semimajor Axis (a) 6916.028 km 6861.080 km
    Eccentricity (e) 0.008896 0.000510
    Inclination (i) 99.0107° 42.9935°
    RAAN 68.3741° 140.7483°
    Perigee Argument 314.2149° 280.9057°
    Mean Anomaly (M) 45.1792° 79.1220°
    Apogee 599.414 km 486.446 km
    Perigee 476.368 km 479.440 km
    Orbit Epoch 2026-10-27T07:16:40+0000 2026-10-27T06:14:00+0000

    FENGYUN 1C DEB & STARLINK-31668 Collision Probability (Pc) Trend

    FENGYUN 1C DEB & STARLINK-31668 Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & STARLINK-31668 Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & STARLINK-31668 Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31668Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31668Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data