Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    2.303594E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T14:41:34+0800
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    1 Object 1

    AOE ID 34036
    NORAD ID 34036
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 63777
    NORAD ID 63777
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB STARLINK-33911
    Time of Closest Approach 2026-09-11T13:18:34+0000
    Collision Probability (Pc) 2.303594E-4
    Conjunction Distance (km) 0.447 km
    Relative Speed (km/s) 11.902 km/s
    Conjunction Risk Parameters R (Radial): -0.26 | I (In-track): 0.224 | C (Cross-track): -0.286
    Collision Risk Index (CRI) 0.82
    X Position (km) 2567.7 2567.938
    Position Y (km) -5292.288 -5291.993
    Position Z (km) -3536.789 -3536.553
    Velocity X (km/s) 3.83 4.958
    Velocity Y (km/s) -2.278 4.679
    Velocity Z (km/s) 6.186 -3.405

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB STARLINK-33911
    Semimajor Axis (a) 6868.200 km 6861.151 km
    Eccentricity (e) 0.001612 0.000079
    Inclination (i) 74.0009° 42.9974°
    RAAN 307.1918° 85.5409°
    Perigee Argument 303.5419° 266.9802°
    Mean Anomaly (M) 56.4241° 93.0959°
    Apogee 501.134 km 483.558 km
    Perigee 478.992 km 482.470 km
    Orbit Epoch 2026-09-10T21:42:34+0000 2026-09-09T19:30:41+0000

    COSMOS 2251 DEB & STARLINK-33911 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & STARLINK-33911 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & STARLINK-33911 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & STARLINK-33911 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33911Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33911Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data