Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    4.705014E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T11:49:53+0800
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    1 Object 1

    AOE ID 21666
    NORAD ID 21666
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 69866
    NORAD ID 69866
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter COSMOS 2154 QIANFAN-237
    Time of Closest Approach 2026-09-06T17:39:09+0000
    Collision Probability (Pc) 4.705014E-7
    Conjunction Distance (km) 2.462 km
    Relative Speed (km/s) 1.123 km/s
    Conjunction Risk Parameters R (Radial): 1.104 | I (In-track): -2.196 | C (Cross-track): -0.138
    Collision Risk Index (CRI) 0.28
    X Position (km) 2875.19 2876.7
    Position Y (km) 4276.581 4278.377
    Position Z (km) 5242.312 5241.566
    Velocity X (km/s) -3.961 -3.088
    Velocity Y (km/s) -3.564 -4.266
    Velocity Z (km/s) 5.09 5.165

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2154 QIANFAN-237
    Semimajor Axis (a) 7365.014 km 7383.452 km
    Eccentricity (e) 0.002486 0.003717
    Inclination (i) 82.9044° 89.0068°
    RAAN 50.3275° 55.2707°
    Perigee Argument 354.7628° 51.8275°
    Mean Anomaly (M) 16.7082° 308.6224°
    Apogee 1005.188 km 1032.757 km
    Perigee 968.566 km 977.873 km
    Orbit Epoch 2026-09-04T16:32:02+0000 2026-09-04T19:48:16+0000

    COSMOS 2154 & QIANFAN-237 Collision Probability (Pc) Trend

    COSMOS 2154 & QIANFAN-237 Collision Probability (Pc) TrendNot Available

    COSMOS 2154 & QIANFAN-237 Miss Distance (Miss Distance) Trend

    COSMOS 2154 & QIANFAN-237 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2154Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    QIANFAN-237Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2154Collision Probability Trend

    Object 1 Probability TrendNot Available

    QIANFAN-237Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2154

    No nearby objects data