Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    9.760927E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T15:22:51+0800
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    1 Object 1

    AOE ID 34913
    NORAD ID 34913
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 43250
    NORAD ID 43250
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB IRIDIUM 149
    Time of Closest Approach 2026-10-28T19:25:41+0000
    Collision Probability (Pc) 9.760927E-6
    Conjunction Distance (km) 1.34 km
    Relative Speed (km/s) 14.708 km/s
    Conjunction Risk Parameters R (Radial): -1.084 | I (In-track): -0.129 | C (Cross-track): -0.775
    Collision Risk Index (CRI) 0.55
    X Position (km) 4123.709 4123.692
    Position Y (km) 5829.404 5830.734
    Position Z (km) -510.588 -510.745
    Velocity X (km/s) -1.397 -0.685
    Velocity Y (km/s) 1.588 -0.155
    Velocity Z (km/s) 7.157 -7.429

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB IRIDIUM 149
    Semimajor Axis (a) 7154.170 km 7155.805 km
    Eccentricity (e) 0.001995 0.000210
    Inclination (i) 74.0285° 86.3973°
    RAAN 61.7680° 235.2747°
    Perigee Argument 98.4415° 82.5632°
    Mean Anomaly (M) 275.2237° 277.5802°
    Apogee 790.308 km 779.171 km
    Perigee 761.758 km 776.165 km
    Orbit Epoch 2026-10-25T14:31:46+0000 2026-10-26T21:21:47+0000

    COSMOS 2251 DEB & IRIDIUM 149 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & IRIDIUM 149 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & IRIDIUM 149 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & IRIDIUM 149 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 149Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 149Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data