Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.308735E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T22:12:59+0800
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    1 Object 1

    AOE ID 4675
    NORAD ID 4675
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 68648
    NORAD ID 68648
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter THORAD AGENA D DEB QIANFAN-121
    Time of Closest Approach 2026-10-30T04:58:14+0000
    Collision Probability (Pc) 7.308735E-7
    Conjunction Distance (km) 2.521 km
    Relative Speed (km/s) 3.224 km/s
    Conjunction Risk Parameters R (Radial): 2.514 | I (In-track): -0.171 | C (Cross-track): 0.042
    Collision Risk Index (CRI) 0.32
    X Position (km) 1926.96 1927.544
    Position Y (km) -2736.137 -2736.915
    Position Z (km) -6658.981 -6661.306
    Velocity X (km/s) 1.098 3.991
    Velocity Y (km/s) -6.562 -5.164
    Velocity Z (km/s) 3.016 3.279

    Orbital Parameters 国际轨道数据源

    Parameter THORAD AGENA D DEB QIANFAN-121
    Semimajor Axis (a) 7444.658 km 7446.625 km
    Eccentricity (e) 0.000164 0.000203
    Inclination (i) 100.1958° 88.9808°
    RAAN 281.0776° 307.4896°
    Perigee Argument 77.6440° 89.7253°
    Mean Anomaly (M) 292.9072° 270.4131°
    Apogee 1067.743 km 1070.003 km
    Perigee 1065.299 km 1066.973 km
    Orbit Epoch 2026-10-27T04:30:11+0000 2026-10-27T06:11:04+0000

    THORAD AGENA D DEB & QIANFAN-121 Collision Probability (Pc) Trend

    THORAD AGENA D DEB & QIANFAN-121 Collision Probability (Pc) TrendNot Available

    THORAD AGENA D DEB & QIANFAN-121 Miss Distance (Miss Distance) Trend

    THORAD AGENA D DEB & QIANFAN-121 Miss Distance (Miss Distance) TrendNot Available

    THORAD AGENA D DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-121Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD AGENA D DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-121Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD AGENA D DEB

    No nearby objects data