Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.363821E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T05:12:15+0800
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    1 Object 1

    Name USA 56
    AOE ID 20560
    NORAD ID 20560
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    Name YAM-15
    AOE ID 68997
    NORAD ID 68997
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 56 YAM-15
    Time of Closest Approach 2026-09-16T13:12:57+0000
    Collision Probability (Pc) 1.363821E-6
    Conjunction Distance (km) 2.695 km
    Relative Speed (km/s) 11.893 km/s
    Conjunction Risk Parameters R (Radial): -1.412 | I (In-track): 1.412 | C (Cross-track): 1.811
    Collision Risk Index (CRI) 0.38
    X Position (km) -194.471 -196.466
    Position Y (km) -948.276 -949.127
    Position Z (km) -6917.416 -6915.817
    Velocity X (km/s) -1.37 -6.873
    Velocity Y (km/s) -7.362 3.1
    Velocity Z (km/s) 1.067 -0.23

    Orbital Parameters 国际轨道数据源

    Parameter USA 56 YAM-15
    Semimajor Axis (a) 7014.440 km 6974.728 km
    Eccentricity (e) 0.005861 0.000193
    Inclination (i) 89.8560° 97.7764°
    RAAN 259.4595° 154.1151°
    Perigee Argument 307.5191° 82.9520°
    Mean Anomaly (M) 52.0712° 277.1918°
    Apogee 677.418 km 597.940 km
    Perigee 595.188 km 595.242 km
    Orbit Epoch 2026-09-15T11:34:51+0000 2026-09-15T03:47:27+0000

    USA 56 & YAM-15 Collision Probability (Pc) Trend

    USA 56 & YAM-15 Collision Probability (Pc) TrendNot Available

    USA 56 & YAM-15 Miss Distance (Miss Distance) Trend

    USA 56 & YAM-15 Miss Distance (Miss Distance) TrendNot Available

    USA 56Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YAM-15Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 56Collision Probability Trend

    Object 1 Probability TrendNot Available

    YAM-15Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 56

    No nearby objects data