Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.511088E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-14T15:53:50+0800
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    1 Object 1

    AOE ID 34728
    NORAD ID 34728
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 41787
    NORAD ID 41787
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 2251 DEB PATHFINDER 1
    Time of Closest Approach 2026-09-15T21:47:45+0000
    Collision Probability (Pc) 2.511088E-6
    Conjunction Distance (km) 2.115 km
    Relative Speed (km/s) 14.981 km/s
    Conjunction Risk Parameters R (Radial): 0.91 | I (In-track): 0.124 | C (Cross-track): 1.905
    Collision Risk Index (CRI) 0.43
    X Position (km) 1648.258 1649.836
    Position Y (km) 6649.295 6647.897
    Position Z (km) 1687.901 1688.062
    Velocity X (km/s) -2.486 1.449
    Velocity Y (km/s) -1.184 1.465
    Velocity Z (km/s) 6.982 -7.227

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 2251 DEB PATHFINDER 1
    Semimajor Axis (a) 7030.341 km 7046.382 km
    Eccentricity (e) 0.004166 0.002698
    Inclination (i) 74.0132° 97.8229°
    RAAN 77.8587° 252.2668°
    Perigee Argument 167.7593° 284.1372°
    Mean Anomaly (M) 192.4602° 75.6836°
    Apogee 681.494 km 687.256 km
    Perigee 622.914 km 649.234 km
    Orbit Epoch 2026-09-12T21:59:58+0000 2026-09-13T23:13:41+0000

    COSMOS 2251 DEB & PATHFINDER 1 Collision Probability (Pc) Trend

    COSMOS 2251 DEB & PATHFINDER 1 Collision Probability (Pc) TrendNot Available

    COSMOS 2251 DEB & PATHFINDER 1 Miss Distance (Miss Distance) Trend

    COSMOS 2251 DEB & PATHFINDER 1 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 2251 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    PATHFINDER 1Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 2251 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    PATHFINDER 1Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 2251 DEB

    No nearby objects data