Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    1.212393E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T09:52:12+0800
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    1 Object 1

    AOE ID 53703
    NORAD ID 53703
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 64549
    NORAD ID 64549
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4731 UND ROADS 2
    Time of Closest Approach 2026-09-06T09:08:22+0000
    Collision Probability (Pc) 1.212393E-4
    Conjunction Distance (km) 0.612 km
    Relative Speed (km/s) 14.168 km/s
    Conjunction Risk Parameters R (Radial): -0.547 | I (In-track): -0.094 | C (Cross-track): 0.257
    Collision Risk Index (CRI) 0.77
    X Position (km) 5067.036 5067.478
    Position Y (km) 1077.944 1078.279
    Position Z (km) -4523.171 -4523.427
    Velocity X (km/s) -4.221 5.092
    Velocity Y (km/s) 5.295 -0.261
    Velocity Z (km/s) -3.47 5.646

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4731 UND ROADS 2
    Semimajor Axis (a) 6871.765 km 6869.828 km
    Eccentricity (e) 0.000187 0.000197
    Inclination (i) 53.1611° 97.4848°
    RAAN 158.2461° 3.5925°
    Perigee Argument 67.0545° 133.5813°
    Mean Anomaly (M) 312.9574° 226.5588°
    Apogee 494.915 km 493.046 km
    Perigee 492.341 km 490.336 km
    Orbit Epoch 2026-09-04T20:00:02+0000 2026-09-04T13:13:09+0000

    STARLINK-4731 & UND ROADS 2 Collision Probability (Pc) Trend

    STARLINK-4731 & UND ROADS 2 Collision Probability (Pc) TrendNot Available

    STARLINK-4731 & UND ROADS 2 Miss Distance (Miss Distance) Trend

    STARLINK-4731 & UND ROADS 2 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4731Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    UND ROADS 2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4731Collision Probability Trend

    Object 1 Probability TrendNot Available

    UND ROADS 2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4731

    No nearby objects data