Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.460898E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T14:31:14+0800
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    1 Object 1

    AOE ID 36441
    NORAD ID 36441
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 68168
    NORAD ID 68168
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB STARLINK-36984
    Time of Closest Approach 2026-09-05T05:59:33+0000
    Collision Probability (Pc) 7.460898E-7
    Conjunction Distance (km) 2.38 km
    Relative Speed (km/s) 2.798 km/s
    Conjunction Risk Parameters R (Radial): -1.306 | I (In-track): 1.95 | C (Cross-track): 0.393
    Collision Risk Index (CRI) 0.32
    X Position (km) 6176.902 6175.821
    Position Y (km) -2709.29 -2707.804
    Position Z (km) -1165.398 -1166.91
    Velocity X (km/s) -0.28 0.925
    Velocity Y (km/s) 2.488 4.664
    Velocity Z (km/s) -7.251 -5.971

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB STARLINK-36984
    Semimajor Axis (a) 6911.875 km 6840.821 km
    Eccentricity (e) 0.010320 0.000270
    Inclination (i) 73.8334° 53.1573°
    RAAN 159.3346° 155.7337°
    Perigee Argument 203.6559° 70.4495°
    Mean Anomaly (M) 155.9871° 289.6798°
    Apogee 605.072 km 464.530 km
    Perigee 462.404 km 460.838 km
    Orbit Epoch 2026-09-02T10:24:14+0000 2026-09-03T18:46:04+0000

    COSMOS 2251 DEB & STARLINK-36984 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & STARLINK-36984 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & STARLINK-36984 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & STARLINK-36984 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36984Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36984Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data