Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.35438E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T12:00:40+0800
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    1 Object 1

    AOE ID 18361
    NORAD ID 18361
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 60389
    NORAD ID 60389
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter OSCAR 27 QIANFAN-11
    Time of Closest Approach 2026-09-11T20:33:24+0000
    Collision Probability (Pc) 3.35438E-6
    Conjunction Distance (km) 1.878 km
    Relative Speed (km/s) 14.595 km/s
    Conjunction Risk Parameters R (Radial): 1.065 | I (In-track): 0.022 | C (Cross-track): -1.545
    Collision Risk Index (CRI) 0.46
    X Position (km) -79.461 -80.996
    Position Y (km) -3167.92 -3167.47
    Position Z (km) -6761.021 -6760.038
    Velocity X (km/s) 0.056 0.143
    Velocity Y (km/s) 6.58 -6.604
    Velocity Z (km/s) -3.168 3.092

    Orbital Parameters 国际轨道数据源

    Parameter OSCAR 27 QIANFAN-11
    Semimajor Axis (a) 7469.022 km 7446.642 km
    Eccentricity (e) 0.010414 0.001604
    Inclination (i) 90.3620° 88.9608°
    RAAN 89.2884° 270.8774°
    Perigee Argument 165.0296° 127.1926°
    Mean Anomaly (M) 195.3976° 233.0691°
    Apogee 1168.671 km 1080.446 km
    Perigee 1013.099 km 1056.564 km
    Orbit Epoch 2026-09-10T12:59:48+0000 2026-09-10T16:26:18+0000

    OSCAR 27 & QIANFAN-11 Collision Probability (Pc) Trend

    OSCAR 27 & QIANFAN-11 Collision Probability (Pc) TrendNot Available

    OSCAR 27 & QIANFAN-11 Miss Distance (Miss Distance) Trend

    OSCAR 27 & QIANFAN-11 Miss Distance (Miss Distance) TrendNot Available

    OSCAR 27Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-11Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OSCAR 27Collision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OSCAR 27

    No nearby objects data