Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.144908E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T20:32:33+0800
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    1 Object 1

    AOE ID 4640
    NORAD ID 4640
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 48971
    NORAD ID 48971
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter THORAD AGENA D DEB ONEWEB-0253
    Time of Closest Approach 2026-09-13T14:01:00+0000
    Collision Probability (Pc) 5.144908E-6
    Conjunction Distance (km) 1.617 km
    Relative Speed (km/s) 14.285 km/s
    Conjunction Risk Parameters R (Radial): 0.515 | I (In-track): -0.222 | C (Cross-track): -1.516
    Collision Risk Index (CRI) 0.49
    X Position (km) 2994.47 2994.061
    Position Y (km) 2096.561 2098.099
    Position Z (km) -6644.969 -6645.256
    Velocity X (km/s) 6.302 -5.495
    Velocity Y (km/s) 1.23 -3.182
    Velocity Z (km/s) 3.259 -3.482

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB ONEWEB-0253
    Semimajor Axis (a) 7490.200 km 7575.897 km
    Eccentricity (e) 0.012157 0.000196
    Inclination (i) 100.0460° 87.9137°
    RAAN 13.9279° 211.7749°
    Perigee Argument 105.3190° 80.3600°
    Mean Anomaly (M) 284.3324° 279.7753°
    Apogee 1203.125 km 1199.248 km
    Perigee 1021.001 km 1196.272 km
    Orbit Epoch 2026-09-11T06:53:39+0000 2026-09-10T19:08:03+0000

    THORAD AGENA D DEB & ONEWEB-0253 Collision Probability (Pc) Trend

    THORAD AGENA D DEB & ONEWEB-0253 Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & ONEWEB-0253 Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & ONEWEB-0253 Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ONEWEB-0253Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ONEWEB-0253Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data