Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.996768E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-06T08:23:02+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 53674
    NORAD ID 53674
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB STARLINK-4620
    Time of Closest Approach 2026-09-06T13:33:20+0000
    Collision Probability (Pc) 3.996768E-6
    Conjunction Distance (km) 1.712 km
    Relative Speed (km/s) 12.711 km/s
    Conjunction Risk Parameters R (Radial): 1.12 | I (In-track): -0.715 | C (Cross-track): -1.078
    Collision Risk Index (CRI) 0.47
    X Position (km) 1672.098 1673.083
    Position Y (km) -953.851 -953.683
    Position Z (km) 6647.51 6646.12
    Velocity X (km/s) 4.128 3.924
    Velocity Y (km/s) 6.371 -6.218
    Velocity Z (km/s) -0.141 -1.875

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB STARLINK-4620
    Semimajor Axis (a) 6939.696 km 6927.625 km
    Eccentricity (e) 0.002762 0.000183
    Inclination (i) 73.8895° 97.2851°
    RAAN 243.3567° 123.2204°
    Perigee Argument 151.5050° 75.3394°
    Mean Anomaly (M) 208.7654° 284.8037°
    Apogee 580.724 km 550.759 km
    Perigee 542.394 km 548.217 km
    Orbit Epoch 2026-09-03T08:24:32+0000 2026-09-05T14:45:50+0000

    COSMOS 2251 DEB & STARLINK-4620 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & STARLINK-4620 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & STARLINK-4620 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & STARLINK-4620 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4620Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4620Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data