Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    6.57029E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T07:07:08+0800
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    1 Object 1

    AOE ID 18187
    NORAD ID 18187
    Object Type PAYLOAD
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 42958
    NORAD ID 42958
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 1867 IRIDIUM 129
    Time of Closest Approach 2026-09-11T19:17:15+0000
    Collision Probability (Pc) 6.57029E-6
    Conjunction Distance (km) 1.496 km
    Relative Speed (km/s) 14.161 km/s
    Conjunction Risk Parameters R (Radial): -0.146 | I (In-track): 0.476 | C (Cross-track): -1.41
    Collision Risk Index (CRI) 0.51
    X Position (km) 5534.105 5533.663
    Position Y (km) -1346.709 -1348.086
    Position Z (km) -4344.218 -4344.595
    Velocity X (km/s) -2.794 4.515
    Velocity Y (km/s) 4.759 -0.495
    Velocity Z (km/s) -5.02 5.912

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 1867 IRIDIUM 129
    Semimajor Axis (a) 7164.781 km 7155.806 km
    Eccentricity (e) 0.001841 0.000230
    Inclination (i) 65.0105° 86.4029°
    RAAN 150.4954° 349.6672°
    Perigee Argument 281.0586° 100.8138°
    Mean Anomaly (M) 78.8428° 259.3318°
    Apogee 799.833 km 779.319 km
    Perigee 773.455 km 776.019 km
    Orbit Epoch 2026-09-10T00:20:11+0000 2026-09-10T08:17:55+0000

    COSMOS 1867 & IRIDIUM 129 Collision Probability (Pc) Trend

    COSMOS 1867 & IRIDIUM 129 Collision Probability (Pc) TrendNot Available

    COSMOS 1867 & IRIDIUM 129 Miss Distance (Miss Distance) Trend

    COSMOS 1867 & IRIDIUM 129 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 1867Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 129Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 1867Collision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 129Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 1867

    No nearby objects data