Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    9.406458E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T14:41:20+0800
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    1 Object 1

    AOE ID 39546
    NORAD ID 39546
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    Name YAM-11
    AOE ID 68991
    NORAD ID 68991
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB YAM-11
    Time of Closest Approach 2026-09-06T14:41:09+0000
    Collision Probability (Pc) 9.406458E-6
    Conjunction Distance (km) 1.36 km
    Relative Speed (km/s) 14.979 km/s
    Conjunction Risk Parameters R (Radial): -1.251 | I (In-track): -0.065 | C (Cross-track): 0.527
    Collision Risk Index (CRI) 0.54
    X Position (km) -4003.377 -4004.429
    Position Y (km) 1849.889 1849.824
    Position Z (km) -5412.195 -5413.054
    Velocity X (km/s) 3.394 -4.509
    Velocity Y (km/s) -5.192 3.864
    Velocity Z (km/s) -4.279 4.66

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB YAM-11
    Semimajor Axis (a) 6949.037 km 6974.657 km
    Eccentricity (e) 0.003806 0.000223
    Inclination (i) 73.9976° 97.7740°
    RAAN 318.7349° 143.6483°
    Perigee Argument 46.8703° 91.6286°
    Mean Anomaly (M) 313.5655° 268.5188°
    Apogee 597.351 km 598.078 km
    Perigee 544.449 km 594.962 km
    Orbit Epoch 2026-09-04T13:35:10+0000 2026-09-04T16:11:27+0000

    COSMOS 2251 DEB & YAM-11 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & YAM-11 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & YAM-11 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & YAM-11 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YAM-11Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    YAM-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data