Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.589743E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T11:09:18+0800
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    1 Object 1

    AOE ID 21461
    NORAD ID 21461
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69083
    NORAD ID 69083
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter DELTA 1 DEB QIANFAN-137
    Time of Closest Approach 2026-10-18T04:44:45+0000
    Collision Probability (Pc) 9.589743E-7
    Conjunction Distance (km) 2.659 km
    Relative Speed (km/s) 6.195 km/s
    Conjunction Risk Parameters R (Radial): 2.549 | I (In-track): 0.702 | C (Cross-track): -0.286
    Collision Risk Index (CRI) 0.35
    X Position (km) 1569.098 1568.897
    Position Y (km) -799.984 -800.219
    Position Z (km) 7223.898 7226.539
    Velocity X (km/s) -6.884 -6.069
    Velocity Y (km/s) -2.402 3.71
    Velocity Z (km/s) 1.125 1.725

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB QIANFAN-137
    Semimajor Axis (a) 7560.844 km 7446.628 km
    Eccentricity (e) 0.020610 0.000203
    Inclination (i) 99.7315° 88.9867°
    RAAN 16.1820° 328.9497°
    Perigee Argument 125.7607° 94.1010°
    Mean Anomaly (M) 2.3432° 266.0374°
    Apogee 1338.534 km 1070.005 km
    Perigee 1026.880 km 1066.977 km
    Orbit Epoch 2026-10-16T12:58:32+0000 2026-10-16T20:22:29+0000

    DELTA 1 DEB & QIANFAN-137 Collision Probability (Pc) Trend

    DELTA 1 DEB & QIANFAN-137 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & QIANFAN-137 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & QIANFAN-137 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-137Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-137Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data