Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    6.490266E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-22T17:01:44+0800
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    1 Object 1

    AOE ID 4991
    NORAD ID 4991
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 68649
    NORAD ID 68649
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter THORAD AGENA D DEB QIANFAN-122
    Time of Closest Approach 2026-10-22T09:30:54+0000
    Collision Probability (Pc) 6.490266E-6
    Conjunction Distance (km) 1.511 km
    Relative Speed (km/s) 14.583 km/s
    Conjunction Risk Parameters R (Radial): 0.562 | I (In-track): 0.116 | C (Cross-track): 1.397
    Collision Risk Index (CRI) 0.51
    X Position (km) -4519.333 -4518.585
    Position Y (km) 5816.697 5818.007
    Position Z (km) 1099.194 1099.141
    Velocity X (km/s) 1.7 -0.772
    Velocity Y (km/s) -0.05 0.779
    Velocity Z (km/s) 7.113 -7.235

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB QIANFAN-122
    Semimajor Axis (a) 7437.503 km 7446.611 km
    Eccentricity (e) 0.002100 0.000166
    Inclination (i) 100.2255° 88.9813°
    RAAN 128.7804° 308.0287°
    Perigee Argument 133.1732° 94.0675°
    Mean Anomaly (M) 241.9375° 266.0666°
    Apogee 1074.983 km 1069.708 km
    Perigee 1043.749 km 1067.240 km
    Orbit Epoch 2026-10-21T19:21:11+0000 2026-10-21T23:46:56+0000

    THORAD AGENA D DEB & QIANFAN-122 Collision Probability (Pc) Trend

    THORAD AGENA D DEB & QIANFAN-122 Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & QIANFAN-122 Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & QIANFAN-122 Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-122Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-122Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data