Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.20435E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:07:06+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 53002
    NORAD ID 53002
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 57941
    NORAD ID 57941
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4121 STARLINK-30715
    Time of Closest Approach 2026-09-06T04:47:53+0000
    Collision Probability (Pc) 1.20435E-6
    Conjunction Distance (km) 2.645 km
    Relative Speed (km/s) 9.126 km/s
    Conjunction Risk Parameters R (Radial): -2.506 | I (In-track): 0.677 | C (Cross-track): 0.503
    Collision Risk Index (CRI) 0.37
    X Position (km) -4319.924 -4317.887
    Position Y (km) -2758.532 -2758.231
    Position Z (km) -4541.999 -4540.339
    Velocity X (km/s) 5.837 0.741
    Velocity Y (km/s) -3.521 -6.778
    Velocity Z (km/s) -3.416 3.416

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4121 STARLINK-30715
    Semimajor Axis (a) 6843.364 km 6840.834 km
    Eccentricity (e) 0.000112 0.000111
    Inclination (i) 53.1637° 53.1595°
    RAAN 3.0026° 268.1677°
    Perigee Argument 83.8333° 89.5999°
    Mean Anomaly (M) 276.2796° 270.5130°
    Apogee 465.992 km 463.454 km
    Perigee 464.462 km 461.940 km
    Orbit Epoch 2026-09-03T14:46:24+0000 2026-09-03T05:07:57+0000

    STARLINK-4121 & STARLINK-30715 Collision Probability (Pc) Trend

    STARLINK-4121 & STARLINK-30715 Collision Probability (Pc) TrendNot Available

    STARLINK-4121 & STARLINK-30715 Miss Distance (Miss Distance) Trend

    STARLINK-4121 & STARLINK-30715 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30715Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30715Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4121

    No nearby objects data