Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.531673E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T10:33:10+0800
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    1 Object 1

    AOE ID 30907
    NORAD ID 30907
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 54699
    NORAD ID 54699
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB SHIYAN 20A (SY-20A)
    Time of Closest Approach 2026-10-25T18:46:36+0000
    Collision Probability (Pc) 1.531673E-6
    Conjunction Distance (km) 2.703 km
    Relative Speed (km/s) 14.623 km/s
    Conjunction Risk Parameters R (Radial): 0.234 | I (In-track): 0.537 | C (Cross-track): 2.639
    Collision Risk Index (CRI) 0.39
    X Position (km) 6478.155 6477.716
    Position Y (km) 525.453 522.915
    Position Z (km) -3060.214 -3061.029
    Velocity X (km/s) 3.216 -2.963
    Velocity Y (km/s) -1.166 3.888
    Velocity Z (km/s) 6.638 -5.614

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB SHIYAN 20A (SY-20A)
    Semimajor Axis (a) 7217.160 km 7171.248 km
    Eccentricity (e) 0.005502 0.001144
    Inclination (i) 99.9244° 59.9958°
    RAAN 356.7693° 173.8102°
    Perigee Argument 354.6390° 24.8681°
    Mean Anomaly (M) 5.4185° 335.2903°
    Apogee 878.736 km 801.318 km
    Perigee 799.310 km 784.904 km
    Orbit Epoch 2026-10-22T23:03:43+0000 2026-10-24T06:33:07+0000

    FENGYUN 1C DEB & SHIYAN 20A (SY-20A) Collision Probability (Pc) Trend

    FENGYUN 1C DEB & SHIYAN 20A (SY-20A) Collision Probability (Pc) TrendNot Available

    FENGYUN 1C DEB & SHIYAN 20A (SY-20A) Miss Distance (Miss Distance) Trend

    FENGYUN 1C DEB & SHIYAN 20A (SY-20A) Miss Distance (Miss Distance) TrendNot Available

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SHIYAN 20A (SY-20A)Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    SHIYAN 20A (SY-20A)Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data