Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.748296E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T18:21:33+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 8784
    NORAD ID 8784
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

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

    Conjunction Constraints

    Parameter THORAD DELTA 1 DEB COSMOS 1577
    Time of Closest Approach 2026-09-13T11:25:45+0000
    Collision Probability (Pc) 3.748296E-6
    Conjunction Distance (km) 1.807 km
    Relative Speed (km/s) 14.654 km/s
    Conjunction Risk Parameters R (Radial): 0.14 | I (In-track): -0.146 | C (Cross-track): 1.795
    Collision Risk Index (CRI) 0.46
    X Position (km) 2944.093 2942.818
    Position Y (km) -1326.2 -1327.47
    Position Z (km) -6640.814 -6640.97
    Velocity X (km/s) 4.067 -4.914
    Velocity Y (km/s) -5.362 4.472
    Velocity Z (km/s) 3.018 -3.094

    Orbital Parameters 国际轨道数据源

    Parameter THORAD DELTA 1 DEB COSMOS 1577
    Semimajor Axis (a) 7451.063 km 7357.369 km
    Eccentricity (e) 0.020076 0.003691
    Inclination (i) 100.9957° 82.9587°
    RAAN 310.2644° 141.9746°
    Perigee Argument 359.2417° 112.5746°
    Mean Anomaly (M) 127.3144° 38.7841°
    Apogee 1222.515 km 1006.386 km
    Perigee 923.337 km 952.078 km
    Orbit Epoch 2026-09-11T17:40:48+0000 2026-09-12T03:33:25+0000

    THORAD DELTA 1 DEB & COSMOS 1577 Collision Probability (Pc) Trend

    THORAD DELTA 1 DEB & COSMOS 1577 Collision Probability (Pc) TrendNot Available

    THORAD DELTA 1 DEB & COSMOS 1577 Miss Distance (Miss Distance) Trend

    THORAD DELTA 1 DEB & COSMOS 1577 Miss Distance (Miss Distance) TrendNot Available

    THORAD DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    COSMOS 1577Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    THORAD DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    COSMOS 1577Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with THORAD DELTA 1 DEB

    No nearby objects data