Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    3.675958E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T22:09:32+0800
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    1 Object 1

    AOE ID 33939
    NORAD ID 33939
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 60519
    NORAD ID 60519
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB FLOCK 4BE 28
    Time of Closest Approach 2026-09-13T06:03:28+0000
    Collision Probability (Pc) 3.675958E-4
    Conjunction Distance (km) 0.36 km
    Relative Speed (km/s) 13.233 km/s
    Conjunction Risk Parameters R (Radial): 0.33 | I (In-track): -0.067 | C (Cross-track): 0.127
    Collision Risk Index (CRI) 0.86
    X Position (km) -1372.238 -1372.342
    Position Y (km) 1283.702 1283.898
    Position Z (km) -6538.154 -6538.436
    Velocity X (km/s) -5.424 7.177
    Velocity Y (km/s) -5.391 -1.85
    Velocity Z (km/s) 0.074 -1.868

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB FLOCK 4BE 28
    Semimajor Axis (a) 6805.165 km 6795.522 km
    Eccentricity (e) 0.001200 0.000311
    Inclination (i) 73.9878° 97.3717°
    RAAN 229.0166° 341.5862°
    Perigee Argument 239.4485° 7.4311°
    Mean Anomaly (M) 120.5543° 352.6986°
    Apogee 435.193 km 419.498 km
    Perigee 418.863 km 415.272 km
    Orbit Epoch 2026-09-11T06:19:38+0000 2026-09-11T04:55:14+0000

    COSMOS 2251 DEB & FLOCK 4BE 28 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & FLOCK 4BE 28 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & FLOCK 4BE 28 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & FLOCK 4BE 28 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4BE 28Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4BE 28Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data