Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.267734E-6
    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 57710
    NORAD ID 57710
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter USA 15 STARLINK-30335
    Time of Closest Approach 2026-09-11T10:53:48+0000
    Collision Probability (Pc) 1.267734E-6
    Conjunction Distance (km) 2.837 km
    Relative Speed (km/s) 11.892 km/s
    Conjunction Risk Parameters R (Radial): -0.778 | I (In-track): 1.731 | C (Cross-track): 2.109
    Collision Risk Index (CRI) 0.37
    X Position (km) -6387.063 -6386.935
    Position Y (km) 1030.645 1027.911
    Position Z (km) 2278.261 2277.514
    Velocity X (km/s) -3.16 0.645
    Velocity Y (km/s) -3.253 -6.093
    Velocity Z (km/s) -6.359 4.543

    Orbital Parameters 国际轨道数据源

    Parameter USA 15 STARLINK-30335
    Semimajor Axis (a) 7213.270 km 6861.188 km
    Eccentricity (e) 0.064852 0.000112
    Inclination (i) 63.3062° 43.0008°
    RAAN 3.3991° 161.6202°
    Perigee Argument 114.5643° 268.3487°
    Mean Anomaly (M) 252.4410° 91.7236°
    Apogee 1302.931 km 483.821 km
    Perigee 367.335 km 482.281 km
    Orbit Epoch 2026-09-10T15:34:48+0000 2026-09-09T03:50:43+0000

    USA 15 & STARLINK-30335 Collision Probability (Pc) Trend

    USA 15 & STARLINK-30335 Collision Probability (Pc) TrendNot Available

    USA 15 & STARLINK-30335 Miss Distance (Miss Distance) Trend

    USA 15 & STARLINK-30335 Miss Distance (Miss Distance) TrendNot Available

    USA 15Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30335Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    USA 15Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30335Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with USA 15

    No nearby objects data