Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.351054E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T09:55:59+0800
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    1 Object 1

    AOE ID 53490
    NORAD ID 53490
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 63316
    NORAD ID 63316
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4387 STARLINK-11645
    Time of Closest Approach 2026-09-05T20:45:35+0000
    Collision Probability (Pc) 1.351054E-6
    Conjunction Distance (km) 2.803 km
    Relative Speed (km/s) 12.901 km/s
    Conjunction Risk Parameters R (Radial): -1.626 | I (In-track): -1.251 | C (Cross-track): 1.908
    Collision Risk Index (CRI) 0.38
    X Position (km) -5008.514 -5008.444
    Position Y (km) -831.064 -832.749
    Position Z (km) -4423.771 -4426.009
    Velocity X (km/s) 4.682 0.023
    Velocity Y (km/s) 2.144 -7.562
    Velocity Z (km/s) -5.709 1.398

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4387 STARLINK-11645
    Semimajor Axis (a) 6733.113 km 6734.586 km
    Eccentricity (e) 0.000110 0.000225
    Inclination (i) 97.6031° 43.0001°
    RAAN 14.9802° 267.4913°
    Perigee Argument 89.8511° 293.1037°
    Mean Anomaly (M) 55.1549° 66.9594°
    Apogee 355.720 km 357.962 km
    Perigee 354.232 km 354.936 km
    Orbit Epoch 2026-09-04T20:00:02+0000 2026-09-04T09:58:56+0000

    STARLINK-4387 & STARLINK-11645 Collision Probability (Pc) Trend

    STARLINK-4387 & STARLINK-11645 Collision Probability (Pc) TrendNot Available

    STARLINK-4387 & STARLINK-11645 Miss Distance (Miss Distance) Trend

    STARLINK-4387 & STARLINK-11645 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4387Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-11645Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4387Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-11645Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4387

    No nearby objects data