Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.974753E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T00:19:08+0800
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    1 Object 1

    AOE ID 35670
    NORAD ID 35670
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 54805
    NORAD ID 54805
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB STARLINK-5417
    Time of Closest Approach 2026-09-12T19:59:33+0000
    Collision Probability (Pc) 9.974753E-7
    Conjunction Distance (km) 2.531 km
    Relative Speed (km/s) 5.799 km/s
    Conjunction Risk Parameters R (Radial): 2.506 | I (In-track): 0.329 | C (Cross-track): -0.131
    Collision Risk Index (CRI) 0.35
    X Position (km) 4035.382 4033.862
    Position Y (km) 1737.113 1736.168
    Position Z (km) 5340.302 5338.514
    Velocity X (km/s) 3.541 -1.058
    Velocity Y (km/s) 5.141 7.352
    Velocity Z (km/s) -4.34 -1.587

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB STARLINK-5417
    Semimajor Axis (a) 6939.368 km 6920.401 km
    Eccentricity (e) 0.002740 0.000135
    Inclination (i) 73.8888° 53.1590°
    RAAN 229.2482° 276.8090°
    Perigee Argument 135.2833° 78.9535°
    Mean Anomaly (M) 225.0570° 281.1608°
    Apogee 580.245 km 543.202 km
    Perigee 542.217 km 541.326 km
    Orbit Epoch 2026-09-10T05:05:01+0000 2026-09-11T02:10:21+0000

    COSMOS 2251 DEB & STARLINK-5417 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & STARLINK-5417 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & STARLINK-5417 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & STARLINK-5417 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5417Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5417Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data