Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.085755E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T12:58:35+0800
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    1 Object 1

    Name USA 15
    AOE ID 16591
    NORAD ID 16591
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 55924
    NORAD ID 55924
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 15 STARLINK-5849
    Time of Closest Approach 2026-09-11T16:02:43+0000
    Collision Probability (Pc) 1.085755E-5
    Conjunction Distance (km) 1.287 km
    Relative Speed (km/s) 14.019 km/s
    Conjunction Risk Parameters R (Radial): -1.243 | I (In-track): 0.164 | C (Cross-track): 0.288
    Collision Risk Index (CRI) 0.56
    X Position (km) -6916.843 -6915.621
    Position Y (km) 280.117 279.737
    Position Z (km) 655.028 654.895
    Velocity X (km/s) -1.208 0.57
    Velocity Y (km/s) -3.426 -2.626
    Velocity Z (km/s) -6.8 7.082

    Orbital Parameters 国际轨道数据源

    Parameter USA 15 STARLINK-5849
    Semimajor Axis (a) 7213.270 km 6950.181 km
    Eccentricity (e) 0.064852 0.000291
    Inclination (i) 63.3062° 70.0000°
    RAAN 3.3991° 179.7493°
    Perigee Argument 114.5643° 269.8890°
    Mean Anomaly (M) 252.4410° 90.1935°
    Apogee 1302.931 km 574.069 km
    Perigee 367.335 km 570.019 km
    Orbit Epoch 2026-09-10T15:34:48+0000 2026-09-10T01:33:58+0000

    USA 15 & STARLINK-5849 Collision Probability (Pc) Trend

    USA 15 & STARLINK-5849 Collision Probability (Pc) TrendNot Available

    USA 15 & STARLINK-5849 Miss Distance (Miss Distance) Trend

    USA 15 & STARLINK-5849 Miss Distance (Miss Distance) TrendNot Available

    USA 15Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5849Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 15Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5849Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 15

    No nearby objects data