Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    3.907772E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T20:32:46+0800
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    1 Object 1

    AOE ID 4639
    NORAD ID 4639
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    AOE ID 48802
    NORAD ID 48802
    Object Type PAYLOAD
    Country
    GB GB

    Conjunction Constraints

    Parameter THORAD AGENA D DEB ONEWEB-0239
    Time of Closest Approach 2026-09-11T23:49:55+0000
    Collision Probability (Pc) 3.907772E-4
    Conjunction Distance (km) 0.31 km
    Relative Speed (km/s) 9.069 km/s
    Conjunction Risk Parameters R (Radial): -0.18 | I (In-track): -0.191 | C (Cross-track): 0.163
    Collision Risk Index (CRI) 0.87
    X Position (km) -415.136 -415.086
    Position Y (km) -1356.777 -1356.989
    Position Z (km) 7437.198 7436.978
    Velocity X (km/s) -5.485 3.403
    Velocity Y (km/s) 4.672 6.267
    Velocity Z (km/s) 0.492 1.332

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB ONEWEB-0239
    Semimajor Axis (a) 7513.072 km 7579.912 km
    Eccentricity (e) 0.011312 0.000213
    Inclination (i) 99.8739° 87.8978°
    RAAN 318.0886° 242.1856°
    Perigee Argument 228.6311° 62.4744°
    Mean Anomaly (M) 157.5583° 297.6603°
    Apogee 1219.925 km 1203.389 km
    Perigee 1049.945 km 1200.161 km
    Orbit Epoch 2026-09-11T03:43:05+0000 2026-09-10T12:44:53+0000

    THORAD AGENA D DEB & ONEWEB-0239 Collision Probability (Pc) Trend

    THORAD AGENA D DEB & ONEWEB-0239 Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & ONEWEB-0239 Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & ONEWEB-0239 Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    ONEWEB-0239Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    ONEWEB-0239Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data