Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    4.764057E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T02:51:22+0800
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    1 Object 1

    AOE ID 3843
    NORAD ID 3843
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 23533
    NORAD ID 23533
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 252 DEB DMSP 5D-2 F13 (USA 109)
    Time of Closest Approach 2026-10-25T13:46:33+0000
    Collision Probability (Pc) 4.764057E-6
    Conjunction Distance (km) 1.671 km
    Relative Speed (km/s) 14.848 km/s
    Conjunction Risk Parameters R (Radial): 0.128 | I (In-track): 0.29 | C (Cross-track): -1.64
    Collision Risk Index (CRI) 0.49
    X Position (km) 4761.477 4760.206
    Position Y (km) -5427.74 -5428.682
    Position Z (km) -33.913 -34.449
    Velocity X (km/s) 2.87 -0.839
    Velocity Y (km/s) 2.103 -0.767
    Velocity Z (km/s) -6.745 7.342

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 252 DEB DMSP 5D-2 F13 (USA 109)
    Semimajor Axis (a) 7621.699 km 7213.482 km
    Eccentricity (e) 0.068883 0.000744
    Inclination (i) 62.2606° 98.8017°
    RAAN 135.8222° 309.8871°
    Perigee Argument 137.3259° 138.4046°
    Mean Anomaly (M) 228.3413° 276.5897°
    Apogee 1768.570 km 840.714 km
    Perigee 718.554 km 829.976 km
    Orbit Epoch 2026-10-23T16:45:58+0000 2026-10-24T05:50:16+0000

    COSMOS 252 DEB & DMSP 5D-2 F13 (USA 109) Collision Probability (Pc) Trend

    COSMOS 252 DEB & DMSP 5D-2 F13 (USA 109) Collision Probability (Pc) TrendNot Available

    COSMOS 252 DEB & DMSP 5D-2 F13 (USA 109) Miss Distance (Miss Distance) Trend

    COSMOS 252 DEB & DMSP 5D-2 F13 (USA 109) Miss Distance (Miss Distance) TrendNot Available

    COSMOS 252 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    DMSP 5D-2 F13 (USA 109)Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 252 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    DMSP 5D-2 F13 (USA 109)Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 252 DEB

    No nearby objects data