Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.073678E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T06:36:17+0800
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    1 Object 1

    AOE ID 4911
    NORAD ID 4911
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    Name METOP-B
    AOE ID 38771
    NORAD ID 38771
    Object Type PAYLOAD
    Country
    EUME EUME

    Conjunction Constraints

    Parameter THORAD AGENA D DEB METOP-B
    Time of Closest Approach 2026-09-11T13:09:53+0000
    Collision Probability (Pc) 2.073678E-6
    Conjunction Distance (km) 2.274 km
    Relative Speed (km/s) 14.326 km/s
    Conjunction Risk Parameters R (Radial): 2.272 | I (In-track): -0.033 | C (Cross-track): -0.095
    Collision Risk Index (CRI) 0.41
    X Position (km) 3186.29 3185.22
    Position Y (km) -3147.121 -3146.206
    Position Z (km) -5650.245 -5648.459
    Velocity X (km/s) -5.409 2.755
    Velocity Y (km/s) 2.443 -5.247
    Velocity Z (km/s) -4.432 4.48

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB METOP-B
    Semimajor Axis (a) 7161.774 km 7198.563 km
    Eccentricity (e) 0.006103 0.000347
    Inclination (i) 99.9580° 98.6425°
    RAAN 146.0259° 303.3357°
    Perigee Argument 77.1655° 98.5937°
    Mean Anomaly (M) 283.6334° 261.5634°
    Apogee 827.349 km 822.921 km
    Perigee 739.925 km 817.931 km
    Orbit Epoch 2026-09-09T16:30:00+0000 2026-09-10T13:45:36+0000

    THORAD AGENA D DEB & METOP-B Collision Probability (Pc) Trend

    THORAD AGENA D DEB & METOP-B Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & METOP-B Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & METOP-B Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    METOP-BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    METOP-BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data