Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.424256E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T20:28:23+0800
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    1 Object 1

    AOE ID 29962
    NORAD ID 29962
    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 2026-10-23T04:16:34+0000
    Collision Probability (Pc) 1.424256E-6
    Conjunction Distance (km) 2.72 km
    Relative Speed (km/s) 13.115 km/s
    Conjunction Risk Parameters R (Radial): 2.72 | I (In-track): 0.001 | C (Cross-track): 0.028
    Collision Risk Index (CRI) 0.38
    X Position (km) 982.259 982.608
    Position Y (km) -3583.084 -3584.458
    Position Z (km) 6121.363 6123.684
    Velocity X (km/s) -3.747 7.386
    Velocity Y (km/s) 5.329 0.264
    Velocity Z (km/s) 3.719 -1.014

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB SHIYAN 20B (SY-20B)
    Semimajor Axis (a) 7246.656 km 7171.292 km
    Eccentricity (e) 0.011105 0.001609
    Inclination (i) 98.7691° 59.9964°
    RAAN 297.7980° 184.7336°
    Perigee Argument 62.7128° 11.4642°
    Mean Anomaly (M) 57.3281° 348.6756°
    Apogee 948.995 km 804.697 km
    Perigee 788.043 km 781.613 km
    Orbit Epoch 2026-10-20T20:15:13+0000 2026-10-20T23:46:50+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