Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.157906E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T20:21:04+0800
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    1 Object 1

    AOE ID 30942
    NORAD ID 30942
    Object Type DEBRIS
    Country
    CN CN
    ← VS →

    2 Object 2

    AOE ID 54700
    NORAD ID 54700
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter FENGYUN 1C DEB SHIYAN 20B (SY-20B)
    Time of Closest Approach 2026-10-18T14:15:52+0000
    Collision Probability (Pc) 1.157906E-6
    Conjunction Distance (km) 2.973 km
    Relative Speed (km/s) 11.246 km/s
    Conjunction Risk Parameters R (Radial): 2.971 | I (In-track): 0.077 | C (Cross-track): 0.063
    Collision Risk Index (CRI) 0.36
    X Position (km) -109.204 -109.283
    Position Y (km) 3638.418 3639.844
    Position Z (km) -6185.336 -6187.942
    Velocity X (km/s) 2.412 -7.306
    Velocity Y (km/s) -6.119 -1.279
    Velocity Z (km/s) -3.542 -0.611

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB SHIYAN 20B (SY-20B)
    Semimajor Axis (a) 7220.050 km 7171.296 km
    Eccentricity (e) 0.013576 0.001556
    Inclination (i) 98.6950° 59.9968°
    RAAN 285.0452° 197.9090°
    Perigee Argument 305.5981° 8.3546°
    Mean Anomaly (M) 177.3843° 351.7745°
    Apogee 939.936 km 804.322 km
    Perigee 743.890 km 781.996 km
    Orbit Epoch 2026-10-16T19:16:50+0000 2026-10-17T00:06:11+0000

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

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

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

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

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

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

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

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

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data