Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.057546E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-10T03:39:17+0800
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    1 Object 1

    AOE ID 10872
    NORAD ID 10872
    Object Type DEBRIS
    Country
    US US
    VS

    2 Object 2

    Name USA 23
    AOE ID 18009
    NORAD ID 18009
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter DELTA 1 DEB USA 23
    Time of Closest Approach 2026-09-09T21:39:09+0000
    Collision Probability (Pc) 3.057546E-6
    Conjunction Distance (km) 1.883 km
    Relative Speed (km/s) 12.796 km/s
    Conjunction Risk Parameters R (Radial): 0.433 | I (In-track): 0.752 | C (Cross-track): -1.671
    Collision Risk Index (CRI) 0.45
    X Position (km) 2396.775 2398.354
    Position Y (km) 2843.882 2843.853
    Position Z (km) -6944.875 -6943.851
    Velocity X (km/s) -1.365 -3.76
    Velocity Y (km/s) -6.289 5.625
    Velocity Z (km/s) -3.086 0.919

    Orbital Parameters 国际轨道数据源

    Parameter DELTA 1 DEB USA 23
    Semimajor Axis (a) 7939.556 km 7311.646 km
    Eccentricity (e) 0.009807 0.077376
    Inclination (i) 101.4768° 63.2933°
    RAAN 250.8739° 121.4148°
    Perigee Argument 218.0101° 106.9400°
    Mean Anomaly (M) 295.5095° 261.7886°
    Apogee 1639.282 km 1499.255 km
    Perigee 1483.556 km 367.763 km
    Orbit Epoch 2026-09-08T11:54:09+0000 2026-09-09T08:15:40+0000

    DELTA 1 DEB & USA 23 Collision Probability (Pc) Trend

    DELTA 1 DEB & USA 23 Collision Probability (Pc) TrendNot Available

    DELTA 1 DEB & USA 23 Miss Distance (Miss Distance) Trend

    DELTA 1 DEB & USA 23 Miss Distance (Miss Distance) TrendNot Available

    DELTA 1 DEBMiss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    USA 23Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    DELTA 1 DEBCollision Probability Trend

    Object 1 Probability TrendNot Available

    USA 23Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with DELTA 1 DEB

    No nearby objects data