Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    6.267747E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-01T18:06:52+0800
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    1 Object 1

    AOE ID 53017
    NORAD ID 53017
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58128
    NORAD ID 58128
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4281 STARLINK-30787
    Time of Closest Approach 2026-09-01T10:24:54+0000
    Collision Probability (Pc) 6.267747E-6
    Conjunction Distance (km) 1.408 km
    Relative Speed (km/s) 9.848 km/s
    Conjunction Risk Parameters R (Radial): 0.433 | I (In-track): -1.02 | C (Cross-track): 0.867
    Collision Risk Index (CRI) 0.51
    X Position (km) -6021.377 -6020.902
    Position Y (km) -88.728 -90.051
    Position Z (km) -3293.134 -3293.065
    Velocity X (km/s) 2.745 -1.924
    Velocity Y (km/s) -5.16 -6.382
    Velocity Z (km/s) -4.888 3.695

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4281 STARLINK-30787
    Semimajor Axis (a) 6859.123 km 6861.205 km
    Eccentricity (e) 0.000128 0.000124
    Inclination (i) 53.2149° 43.0045°
    RAAN 338.6999° 221.1722°
    Perigee Argument 68.8574° 266.9092°
    Mean Anomaly (M) 279.0366° 93.1617°
    Apogee 481.864 km 483.919 km
    Perigee 480.108 km 482.217 km
    Orbit Epoch 2026-09-01T00:00:01+0000 2026-08-31T15:46:44+0000

    STARLINK-4281 & STARLINK-30787 Collision Probability (Pc) Trend

    STARLINK-4281 & STARLINK-30787 Collision Probability (Pc) TrendNot Available

    STARLINK-4281 & STARLINK-30787 Miss Distance (Miss Distance) Trend

    STARLINK-4281 & STARLINK-30787 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4281Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30787Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4281Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30787Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4281

    No nearby objects data