Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    9.264295E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T05:18:51+0800
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    1 Object 1

    AOE ID 10120
    NORAD ID 10120
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 43251
    NORAD ID 43251
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 923 IRIDIUM 157
    Time of Closest Approach 2026-09-16T21:00:21+0000
    Collision Probability (Pc) 9.264295E-6
    Conjunction Distance (km) 1.087 km
    Relative Speed (km/s) 4.817 km/s
    Conjunction Risk Parameters R (Radial): 0.876 | I (In-track): 0.609 | C (Cross-track): 0.211
    Collision Risk Index (CRI) 0.54
    X Position (km) -415.419 -415.087
    Position Y (km) -2641.402 -2641.252
    Position Z (km) 6627.854 6628.878
    Velocity X (km/s) 6.154 2.302
    Velocity Y (km/s) 3.791 6.55
    Velocity Z (km/s) 1.886 2.748

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 923 IRIDIUM 157
    Semimajor Axis (a) 7160.128 km 7155.808 km
    Eccentricity (e) 0.001164 0.000217
    Inclination (i) 74.0475° 86.3911°
    RAAN 218.2276° 253.0358°
    Perigee Argument 118.6813° 88.6594°
    Mean Anomaly (M) 241.5510° 271.4851°
    Apogee 790.328 km 779.224 km
    Perigee 773.654 km 776.118 km
    Orbit Epoch 2026-09-15T14:29:55+0000 2026-09-14T13:25:55+0000

    COSMOS 923 & IRIDIUM 157 Collision Probability (Pc) Trend

    COSMOS 923 & IRIDIUM 157 Collision Probability (Pc) TrendNot Available

    COSMOS 923 & IRIDIUM 157 Miss Distance (Miss Distance) Trend

    COSMOS 923 & IRIDIUM 157 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 923Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 157Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 923Collision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 157Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 923

    No nearby objects data