Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.016727E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-31T06:11:08+0800
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    1 Object 1

    AOE ID 5554
    NORAD ID 5554
    Object Type PAYLOAD
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 49943
    NORAD ID 49943
    Object Type DEBRIS
    Country
    CIS CIS

    Conjunction Constraints

    Parameter COSMOS 451 COSMOS 2499 DEB
    Time of Closest Approach 2026-10-30T22:23:48+0000
    Collision Probability (Pc) 1.016727E-6
    Conjunction Distance (km) 2.804 km
    Relative Speed (km/s) 7.847 km/s
    Conjunction Risk Parameters R (Radial): 2.78 | I (In-track): 0.301 | C (Cross-track): -0.206
    Collision Risk Index (CRI) 0.35
    X Position (km) 1051.205 1051.938
    Position Y (km) -1906.659 -1907.327
    Position Z (km) 7564.27 7566.892
    Velocity X (km/s) 5.894 5.753
    Velocity Y (km/s) 4.004 -3.607
    Velocity Z (km/s) 0.217 -1.684

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 451 COSMOS 2499 DEB
    Semimajor Axis (a) 7908.952 km 7632.388 km
    Eccentricity (e) 0.005262 0.032739
    Inclination (i) 74.0290° 82.5158°
    RAAN 215.6180° 147.1823°
    Perigee Argument 45.7103° 293.2590°
    Mean Anomaly (M) 83.3883° 63.4372°
    Apogee 1572.435 km 1504.126 km
    Perigee 1489.195 km 1004.376 km
    Orbit Epoch 2026-10-30T05:06:49+0000 2026-10-29T07:07:06+0000

    COSMOS 451 & COSMOS 2499 DEB Collision Probability (Pc) Trend

    COSMOS 451 & COSMOS 2499 DEB Collision Probability (Pc) TrendNot Available

    COSMOS 451 & COSMOS 2499 DEB Miss Distance (Miss Distance) Trend

    COSMOS 451 & COSMOS 2499 DEB Miss Distance (Miss Distance) TrendNot Available

    COSMOS 451Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 2499 DEBMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 451Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 2499 DEBCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 451

    No nearby objects data