Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.442732E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T06:57:25+0800
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    1 Object 1

    AOE ID 33999
    NORAD ID 33999
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 69273
    NORAD ID 69273
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB KUIPER-00581
    Time of Closest Approach 2026-09-14T08:29:14+0000
    Collision Probability (Pc) 3.442732E-5
    Conjunction Distance (km) 0.722 km
    Relative Speed (km/s) 4.392 km/s
    Conjunction Risk Parameters R (Radial): -0.032 | I (In-track): 0.69 | C (Cross-track): -0.21
    Collision Risk Index (CRI) 0.66
    X Position (km) 3150.089 3149.489
    Position Y (km) 4183.088 4183.042
    Position Z (km) 4648.98 4649.38
    Velocity X (km/s) -5.026 -6.68
    Velocity Y (km/s) -2.036 1.482
    Velocity Z (km/s) 5.226 3.183

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB KUIPER-00581
    Semimajor Axis (a) 6978.403 km 7007.672 km
    Eccentricity (e) 0.004000 0.000158
    Inclination (i) 73.9152° 51.9029°
    RAAN 43.8700° 20.8616°
    Perigee Argument 232.4264° 159.6368°
    Mean Anomaly (M) 127.3282° 200.4657°
    Apogee 628.179 km 630.641 km
    Perigee 572.353 km 628.429 km
    Orbit Epoch 2026-09-11T12:34:41+0000 2026-09-11T15:24:01+0000

    COSMOS 2251 DEB & KUIPER-00581 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & KUIPER-00581 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & KUIPER-00581 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & KUIPER-00581 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KUIPER-00581Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    KUIPER-00581Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data