Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.22264E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T16:21:13+0800
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    1 Object 1

    AOE ID 3757
    NORAD ID 3757
    Object Type DEBRIS
    Country
    CIS CIS
    ← VS →

    2 Object 2

    AOE ID 65661
    NORAD ID 65661
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter COSMOS 249 DEB STARLINK-35220
    Time of Closest Approach 2026-10-20T12:24:28+0000
    Collision Probability (Pc) 2.22264E-6
    Conjunction Distance (km) 2.233 km
    Relative Speed (km/s) 15.038 km/s
    Conjunction Risk Parameters R (Radial): 1.544 | I (In-track): 0.349 | C (Cross-track): -1.574
    Collision Risk Index (CRI) 0.42
    X Position (km) 4986.39 4984.745
    Position Y (km) -3016.221 -3016.986
    Position Z (km) 3586.366 3585.064
    Velocity X (km/s) 5.131 -3.981
    Velocity Y (km/s) 1.903 1.081
    Velocity Z (km/s) -5.51 6.425

    Orbital Parameters 国际轨道数据源

    Parameter COSMOS 249 DEB STARLINK-35220
    Semimajor Axis (a) 7091.715 km 6843.497 km
    Eccentricity (e) 0.034670 0.000028
    Inclination (i) 61.9723° 97.2869°
    RAAN 172.9511° 331.3955°
    Perigee Argument 142.0646° 107.6824°
    Mean Anomaly (M) 220.5403° 252.4449°
    Apogee 959.445 km 465.552 km
    Perigee 467.711 km 465.168 km
    Orbit Epoch 2026-10-18T23:26:39+0000 2026-10-18T13:17:25+0000

    COSMOS 249 DEB & STARLINK-35220 Collision Probability (Pc) Trend

    COSMOS 249 DEB & STARLINK-35220 Collision Probability (Pc) TrendNot Available

    COSMOS 249 DEB & STARLINK-35220 Miss Distance (Miss Distance) Trend

    COSMOS 249 DEB & STARLINK-35220 Miss Distance (Miss Distance) TrendNot Available

    COSMOS 249 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35220Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    COSMOS 249 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35220Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with COSMOS 249 DEB

    No nearby objects data