Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.693662E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T16:09:49+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 62787
    NORAD ID 62787
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter THORAD AGENA D DEB QIANFAN-57
    Time of Closest Approach 2026-10-21T02:16:21+0000
    Collision Probability (Pc) 2.693662E-5
    Conjunction Distance (km) 0.902 km
    Relative Speed (km/s) 8.899 km/s
    Conjunction Risk Parameters R (Radial): -0.503 | I (In-track): -0.597 | C (Cross-track): -0.45
    Collision Risk Index (CRI) 0.64
    X Position (km) -572.091 -571.431
    Position Y (km) -1240.293 -1239.81
    Position Z (km) 7312.464 7312.085
    Velocity X (km/s) -7.311 -2.347
    Velocity Y (km/s) 0.539 -6.803
    Velocity Z (km/s) -0.534 -1.334

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB QIANFAN-57
    Semimajor Axis (a) 7513.041 km 7446.608 km
    Eccentricity (e) 0.011426 0.000138
    Inclination (i) 99.8683° 88.9715°
    RAAN 354.9076° 70.9014°
    Perigee Argument 137.2733° 77.8513°
    Mean Anomaly (M) 236.2795° 282.2792°
    Apogee 1220.752 km 1069.498 km
    Perigee 1049.056 km 1067.444 km
    Orbit Epoch 2026-10-19T10:14:31+0000 2026-10-19T21:20:15+0000

    THORAD AGENA D DEB & QIANFAN-57 Collision Probability (Pc) Trend

    THORAD AGENA D DEB & QIANFAN-57 Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & QIANFAN-57 Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & QIANFAN-57 Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-57Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-57Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data