Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.725408E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T05:53:52+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 63160
    NORAD ID 63160
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter OSCAR 27 QIANFAN-74
    Time of Closest Approach 2026-09-12T02:55:58+0000
    Collision Probability (Pc) 2.725408E-6
    Conjunction Distance (km) 2.024 km
    Relative Speed (km/s) 14.376 km/s
    Conjunction Risk Parameters R (Radial): 0.524 | I (In-track): 0.388 | C (Cross-track): -1.915
    Collision Risk Index (CRI) 0.44
    X Position (km) 49.792 47.875
    Position Y (km) 244.897 244.549
    Position Z (km) 7433.079 7433.627
    Velocity X (km/s) -0.083 -2.689
    Velocity Y (km/s) -7.328 6.804
    Velocity Z (km/s) 0.169 -0.206

    Orbital Parameters 国际轨道数据源

    Parameter OSCAR 27 QIANFAN-74
    Semimajor Axis (a) 7469.022 km 7446.650 km
    Eccentricity (e) 0.010414 0.000185
    Inclination (i) 90.3620° 88.9657°
    RAAN 89.2884° 291.6956°
    Perigee Argument 165.0296° 95.3769°
    Mean Anomaly (M) 195.3976° 264.7593°
    Apogee 1168.671 km 1069.887 km
    Perigee 1013.099 km 1067.139 km
    Orbit Epoch 2026-09-10T12:59:48+0000 2026-09-10T13:09:14+0000

    OSCAR 27 & QIANFAN-74 Collision Probability (Pc) Trend

    OSCAR 27 & QIANFAN-74 Collision Probability (Pc) TrendNot Available

    OSCAR 27 & QIANFAN-74 Miss Distance (Miss Distance) Trend

    OSCAR 27 & QIANFAN-74 Miss Distance (Miss Distance) TrendNot Available

    OSCAR 27Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-74Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    OSCAR 27Collision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-74Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with OSCAR 27

    No nearby objects data