Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.841401E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T01:25:27+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 58562
    NORAD ID 58562
    Object Type PAYLOAD
    Country
    ES ES

    Conjunction Constraints

    Parameter FENGYUN 1C DEB ALISIO-1
    Time of Closest Approach 2026-10-20T17:23:23+0000
    Collision Probability (Pc) 8.841401E-7
    Conjunction Distance (km) 2.956 km
    Relative Speed (km/s) 6.864 km/s
    Conjunction Risk Parameters R (Radial): -1.394 | I (In-track): 2.318 | C (Cross-track): 1.192
    Collision Risk Index (CRI) 0.34
    X Position (km) -778.515 -776.182
    Position Y (km) 816.915 818.182
    Position Z (km) -6803.642 -6802.343
    Velocity X (km/s) 3.78 7.499
    Velocity Y (km/s) 6.587 0.937
    Velocity Z (km/s) 0.42 -0.745

    Orbital Parameters 国际轨道数据源

    Parameter FENGYUN 1C DEB ALISIO-1
    Semimajor Axis (a) 6916.434 km 6890.691 km
    Eccentricity (e) 0.008908 0.000489
    Inclination (i) 99.0053° 97.5261°
    RAAN 58.7265° 4.9521°
    Perigee Argument 342.5568° 236.1475°
    Mean Anomaly (M) 17.2601° 123.9294°
    Apogee 599.911 km 515.922 km
    Perigee 476.683 km 509.186 km
    Orbit Epoch 2026-10-19T01:59:38+0000 2026-10-19T07:00:04+0000

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

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

    FENGYUN 1C DEB & ALISIO-1 Miss Distance (Miss Distance) Trend

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

    FENGYUN 1C DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ALISIO-1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FENGYUN 1C DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ALISIO-1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FENGYUN 1C DEB

    No nearby objects data