Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.250136E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T00:49:01+0800
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    1 Object 1

    AOE ID 33915
    NORAD ID 33915
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 43071
    NORAD ID 43071
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB IRIDIUM 138
    Time of Closest Approach 2026-10-28T13:17:15+0000
    Collision Probability (Pc) 1.250136E-6
    Conjunction Distance (km) 2.791 km
    Relative Speed (km/s) 11.16 km/s
    Conjunction Risk Parameters R (Radial): 2.445 | I (In-track): -0.909 | C (Cross-track): 0.991
    Collision Risk Index (CRI) 0.37
    X Position (km) -287.572 -286.576
    Position Y (km) 2070.443 2071.91
    Position Z (km) -6850.492 -6852.647
    Velocity X (km/s) -7.284 -0.638
    Velocity Y (km/s) 1.413 -7.111
    Velocity Z (km/s) 0.651 -2.124

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB IRIDIUM 138
    Semimajor Axis (a) 7150.636 km 7155.806 km
    Eccentricity (e) 0.010589 0.000218
    Inclination (i) 74.0419° 86.3935°
    RAAN 170.3117° 266.6127°
    Perigee Argument 184.7406° 84.4806°
    Mean Anomaly (M) 326.7539° 275.6638°
    Apogee 848.218 km 779.228 km
    Perigee 696.780 km 776.110 km
    Orbit Epoch 2026-10-27T01:35:54+0000 2026-10-26T23:16:19+0000

    COSMOS 2251 DEB & IRIDIUM 138 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & IRIDIUM 138 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & IRIDIUM 138 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & IRIDIUM 138 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 138Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 138Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data