Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.358813E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T20:21:27+0800
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    1 Object 1

    AOE ID 35453
    NORAD ID 35453
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

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

    Conjunction Constraints

    Parameter COSMOS 2251 DEB IRIDIUM 129
    Time of Closest Approach 2026-10-21T23:13:21+0000
    Collision Probability (Pc) 1.358813E-6
    Conjunction Distance (km) 2.949 km
    Relative Speed (km/s) 14.638 km/s
    Conjunction Risk Parameters R (Radial): 1.726 | I (In-track): -0.45 | C (Cross-track): -2.348
    Collision Risk Index (CRI) 0.38
    X Position (km) -5807.074 -5806.605
    Position Y (km) 2833.07 2830.2
    Position Z (km) -3094.573 -3094.085
    Velocity X (km/s) -3.784 2.657
    Velocity Y (km/s) -0.684 -1.873
    Velocity Z (km/s) 6.378 -6.712

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB IRIDIUM 129
    Semimajor Axis (a) 7139.748 km 7155.804 km
    Eccentricity (e) 0.006772 0.000228
    Inclination (i) 74.0075° 86.3981°
    RAAN 169.3285° 333.1771°
    Perigee Argument 228.1044° 89.3547°
    Mean Anomaly (M) 131.4322° 270.7911°
    Apogee 809.965 km 779.301 km
    Perigee 713.257 km 776.033 km
    Orbit Epoch 2026-10-17T22:34:43+0000 2026-10-19T20:02:03+0000

    COSMOS 2251 DEB & IRIDIUM 129 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & IRIDIUM 129 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & IRIDIUM 129 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & IRIDIUM 129 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss 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 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 129Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data