Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.506186E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T04:57:53+0800
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    1 Object 1

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

    2 Object 2

    AOE ID 43073
    NORAD ID 43073
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 23 IRIDIUM 130
    Time of Closest Approach 2026-09-16T13:53:47+0000
    Collision Probability (Pc) 2.506186E-6
    Conjunction Distance (km) 2.097 km
    Relative Speed (km/s) 14.468 km/s
    Conjunction Risk Parameters R (Radial): -1.783 | I (In-track): 0.346 | C (Cross-track): 1.048
    Collision Risk Index (CRI) 0.43
    X Position (km) 1693.406 1694.047
    Position Y (km) -6927.343 -6925.374
    Position Z (km) -653.648 -653.321
    Velocity X (km/s) 3.283 0.617
    Velocity Y (km/s) 0.851 -0.54
    Velocity Z (km/s) -6.734 7.418

    Orbital Parameters 国际轨道数据源

    Parameter USA 23 IRIDIUM 130
    Semimajor Axis (a) 7311.303 km 7155.805 km
    Eccentricity (e) 0.077327 0.000204
    Inclination (i) 63.2923° 86.3927°
    RAAN 104.6247° 284.7185°
    Perigee Argument 107.0554° 86.6110°
    Mean Anomaly (M) 261.6634° 273.5320°
    Apogee 1498.531 km 779.130 km
    Perigee 367.801 km 776.206 km
    Orbit Epoch 2026-09-15T07:42:30+0000 2026-09-15T01:04:59+0000

    USA 23 & IRIDIUM 130 Collision Probability (Pc) Trend

    USA 23 & IRIDIUM 130 Collision Probability (Pc) TrendNot Available

    USA 23 & IRIDIUM 130 Miss Distance (Miss Distance) Trend

    USA 23 & IRIDIUM 130 Miss Distance (Miss Distance) TrendNot Available

    USA 23Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    IRIDIUM 130Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 23Collision Probability Trend

    Object 1 Probability TrendNot Available

    IRIDIUM 130Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 23

    No nearby objects data