Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.393534E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T15:45:15+0800
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    1 Object 1

    AOE ID 34451
    NORAD ID 34451
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 66715
    NORAD ID 66715
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB FLOCK 4H 12
    Time of Closest Approach 2026-09-16T06:54:45+0000
    Collision Probability (Pc) 4.393534E-6
    Conjunction Distance (km) 1.617 km
    Relative Speed (km/s) 11.28 km/s
    Conjunction Risk Parameters R (Radial): -0.901 | I (In-track): -0.899 | C (Cross-track): 0.997
    Collision Risk Index (CRI) 0.48
    X Position (km) -1201.48 -1201.63
    Position Y (km) 1624.427 1625.469
    Position Z (km) -6586.416 -6585.189
    Velocity X (km/s) -4.241 6.563
    Velocity Y (km/s) -6.258 -3.258
    Velocity Z (km/s) -0.782 -2.001

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB FLOCK 4H 12
    Semimajor Axis (a) 6889.409 km 6879.507 km
    Eccentricity (e) 0.001784 0.000291
    Inclination (i) 74.0380° 97.4122°
    RAAN 242.4915° 328.4784°
    Perigee Argument 210.7204° 54.1843°
    Mean Anomaly (M) 149.2950° 305.9663°
    Apogee 523.563 km 503.372 km
    Perigee 498.981 km 499.368 km
    Orbit Epoch 2026-09-13T22:24:19+0000 2026-09-13T03:36:44+0000

    COSMOS 2251 DEB & FLOCK 4H 12 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & FLOCK 4H 12 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & FLOCK 4H 12 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & FLOCK 4H 12 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4H 12Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4H 12Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data