Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.330587E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T14:18:54+0800
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    1 Object 1

    AOE ID 8307
    NORAD ID 8307
    Object Type DEBRIS
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 15621
    NORAD ID 15621
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter THORAD DELTA 1 DEB COSMOS 1639
    Time of Closest Approach 2026-10-29T07:44:21+0000
    Collision Probability (Pc) 1.330587E-6
    Conjunction Distance (km) 2.976 km
    Relative Speed (km/s) 14.385 km/s
    Conjunction Risk Parameters R (Radial): 2.113 | I (In-track): 0.094 | C (Cross-track): 2.094
    Collision Risk Index (CRI) 0.37
    X Position (km) 4407.868 4405.587
    Position Y (km) -4255.291 -4255.857
    Position Z (km) 4889.367 4887.543
    Velocity X (km/s) -4.5 4.731
    Velocity Y (km/s) 1.847 -1.085
    Velocity Z (km/s) 5.409 -5.226

    Orbital Parameters 国际轨道数据源

    Parameter THORAD DELTA 1 DEB COSMOS 1639
    Semimajor Axis (a) 8171.342 km 7838.199 km
    Eccentricity (e) 0.045393 0.002557
    Inclination (i) 101.1344° 74.0534°
    RAAN 323.6846° 151.0051°
    Perigee Argument 70.9763° 236.2876°
    Mean Anomaly (M) 47.8338° 188.9257°
    Apogee 2164.123 km 1480.109 km
    Perigee 1422.287 km 1440.015 km
    Orbit Epoch 2026-10-27T15:19:10+0000 2026-10-27T22:43:07+0000

    THORAD DELTA 1 DEB & COSMOS 1639 Collision Probability (Pc) Trend

    THORAD DELTA 1 DEB & COSMOS 1639 Collision Probability (Pc) TrendNot Available

    THORAD DELTA 1 DEB & COSMOS 1639 Miss Distance (Miss Distance) Trend

    THORAD DELTA 1 DEB & COSMOS 1639 Miss Distance (Miss Distance) TrendNot Available

    THORAD DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 1639Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 1639Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD DELTA 1 DEB

    No nearby objects data