Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.320708E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T05:37:50+0800
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    1 Object 1

    AOE ID 21902
    NORAD ID 21902
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 69859
    NORAD ID 69859
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 2181 QIANFAN-230
    Time of Closest Approach 2026-09-06T06:21:51+0000
    Collision Probability (Pc) 3.320708E-5
    Conjunction Distance (km) 0.94 km
    Relative Speed (km/s) 14.597 km/s
    Conjunction Risk Parameters R (Radial): 0.309 | I (In-track): -0.108 | C (Cross-track): -0.881
    Collision Risk Index (CRI) 0.65
    X Position (km) 2148.978 2149.851
    Position Y (km) 3280.918 3280.642
    Position Z (km) 6231.59 6231.799
    Velocity X (km/s) 1.895 -3.618
    Velocity Y (km/s) 5.992 -5.084
    Velocity Z (km/s) -3.825 3.922

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2181 QIANFAN-230
    Semimajor Axis (a) 7368.479 km 7395.022 km
    Eccentricity (e) 0.002757 0.003577
    Inclination (i) 82.9388° 89.0063°
    RAAN 249.4715° 55.3570°
    Perigee Argument 217.1686° 53.7666°
    Mean Anomaly (M) 307.5807° 306.6791°
    Apogee 1010.658 km 1043.340 km
    Perigee 970.026 km 990.430 km
    Orbit Epoch 2026-09-04T10:50:07+0000 2026-09-04T13:37:33+0000

    COSMOS 2181 & QIANFAN-230 Collision Probability (Pc) Trend

    COSMOS 2181 & QIANFAN-230 Collision Probability (Pc) TrendNot Available

    COSMOS 2181 & QIANFAN-230 Miss Distance (Miss Distance) Trend

    COSMOS 2181 & QIANFAN-230 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2181Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-230Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2181Collision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-230Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2181

    No nearby objects data