Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    6.425878E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T13:49:32+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 69276
    NORAD ID 69276
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB KUIPER-00590
    Time of Closest Approach 2026-09-13T19:35:37+0000
    Collision Probability (Pc) 6.425878E-6
    Conjunction Distance (km) 1.193 km
    Relative Speed (km/s) 4.493 km/s
    Conjunction Risk Parameters R (Radial): 0.474 | I (In-track): -1.044 | C (Cross-track): -0.325
    Collision Risk Index (CRI) 0.51
    X Position (km) 2999.246 2998.147
    Position Y (km) 4210.964 4210.616
    Position Z (km) 4722.842 4723.147
    Velocity X (km/s) -5.036 -6.762
    Velocity Y (km/s) -2.2 1.38
    Velocity Z (km/s) 5.149 3.054

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB KUIPER-00590
    Semimajor Axis (a) 6978.389 km 7007.699 km
    Eccentricity (e) 0.004000 0.000078
    Inclination (i) 73.9153° 51.9041°
    RAAN 43.3290° 18.3594°
    Perigee Argument 231.8556° 133.3453°
    Mean Anomaly (M) 127.9018° 226.7574°
    Apogee 628.168 km 630.112 km
    Perigee 572.336 km 629.012 km
    Orbit Epoch 2026-09-11T19:01:37+0000 2026-09-11T15:27:55+0000

    COSMOS 2251 DEB & KUIPER-00590 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & KUIPER-00590 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & KUIPER-00590 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & KUIPER-00590 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    KUIPER-00590Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    KUIPER-00590Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data