Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.190637E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T18:21:34+0800
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    1 Object 1

    AOE ID 3686
    NORAD ID 3686
    Object Type DEBRIS
    Country
    CIS CIS
    VS

    2 Object 2

    AOE ID 15077
    NORAD ID 15077
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter COSMOS 252 DEB * COSMOS 1577
    Time of Closest Approach 2026-09-12T18:14:03+0000
    Collision Probability (Pc) 1.190637E-6
    Conjunction Distance (km) 2.83 km
    Relative Speed (km/s) 10.596 km/s
    Conjunction Risk Parameters R (Radial): -2.468 | I (In-track): 0.891 | C (Cross-track): -1.058
    Collision Risk Index (CRI) 0.37
    X Position (km) -2242.128 -2241.576
    Position Y (km) 2800.506 2801.816
    Position Z (km) -6459.659 -6462.105
    Velocity X (km/s) -4.535 -5.313
    Velocity Y (km/s) -5.716 3.68
    Velocity Z (km/s) -1.393 3.443

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 252 DEB * COSMOS 1577
    Semimajor Axis (a) 7569.769 km 7357.369 km
    Eccentricity (e) 0.062521 0.003691
    Inclination (i) 62.2602° 82.9587°
    RAAN 241.9450° 141.9746°
    Perigee Argument 190.5484° 112.5746°
    Mean Anomaly (M) 168.1881° 38.7841°
    Apogee 1664.905 km 1006.386 km
    Perigee 718.359 km 952.078 km
    Orbit Epoch 2026-09-10T23:04:04+0000 2026-09-12T03:33:25+0000

    COSMOS 252 DEB * & COSMOS 1577 Collision Probability (Pc) Trend

    COSMOS 252 DEB * & COSMOS 1577 Collision Probability (Pc) TrendNot Available

    COSMOS 252 DEB * & COSMOS 1577 Miss Distance (Miss Distance) Trend

    COSMOS 252 DEB * & COSMOS 1577 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 252 DEB *Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 1577Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 252 DEB *Collision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 1577Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 252 DEB *

    No nearby objects data