Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.006228E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T01:32:11+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 39485
    NORAD ID 39485
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter COSMOS 451 COSMOS 2490
    Time of Closest Approach 2026-10-25T10:00:45+0000
    Collision Probability (Pc) 2.006228E-6
    Conjunction Distance (km) 2.241 km
    Relative Speed (km/s) 12.899 km/s
    Conjunction Risk Parameters R (Radial): -1.803 | I (In-track): 0.565 | C (Cross-track): -1.204
    Collision Risk Index (CRI) 0.41
    X Position (km) -1104.377 -1102.926
    Position Y (km) -3632.493 -3632.228
    Position Z (km) 6884.648 6882.961
    Velocity X (km/s) 5.386 0.105
    Velocity Y (km/s) 3.729 -6.302
    Velocity Z (km/s) 2.836 -3.319

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 451 COSMOS 2490
    Semimajor Axis (a) 7908.953 km 7872.545 km
    Eccentricity (e) 0.005252 0.002138
    Inclination (i) 74.0286° 82.4781°
    RAAN 223.3499° 87.6379°
    Perigee Argument 54.5190° 188.6497°
    Mean Anomaly (M) 96.5454° 171.4218°
    Apogee 1572.351 km 1511.237 km
    Perigee 1489.281 km 1477.579 km
    Orbit Epoch 2026-10-24T05:17:57+0000 2026-10-24T08:15:50+0000

    COSMOS 451 & COSMOS 2490 Collision Probability (Pc) Trend

    COSMOS 451 & COSMOS 2490 Collision Probability (Pc) TrendNot Available

    COSMOS 451 & COSMOS 2490 Miss Distance (Miss Distance) Trend

    COSMOS 451 & COSMOS 2490 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 451Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 2490Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 451Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 2490Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 451

    No nearby objects data