Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.419666E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T07:43:28+0800
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    1 Object 1

    AOE ID 53488
    NORAD ID 53488
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 67855
    NORAD ID 67855
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4421 STARLINK-36838
    Time of Closest Approach 2026-09-04T14:42:40+0000
    Collision Probability (Pc) 1.419666E-6
    Conjunction Distance (km) 2.549 km
    Relative Speed (km/s) 10.939 km/s
    Conjunction Risk Parameters R (Radial): -2.301 | I (In-track): -0.771 | C (Cross-track): 0.779
    Collision Risk Index (CRI) 0.38
    X Position (km) -4026.924 -4028.811
    Position Y (km) -1087.527 -1088.676
    Position Z (km) 5418.852 5420.123
    Velocity X (km/s) -6.132 0.894
    Velocity Y (km/s) -0.012 -7.535
    Velocity Z (km/s) -4.548 -0.847

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4421 STARLINK-36838
    Semimajor Axis (a) 6843.702 km 6848.921 km
    Eccentricity (e) 0.000116 0.000134
    Inclination (i) 97.2849° 53.1574°
    RAAN 3.2728° 102.6928°
    Perigee Argument 85.8000° 97.8819°
    Mean Anomaly (M) 274.3375° 262.2335°
    Apogee 466.362 km 471.704 km
    Perigee 464.768 km 469.864 km
    Orbit Epoch 2026-09-02T07:20:44+0000 2026-09-02T07:28:37+0000

    STARLINK-4421 & STARLINK-36838 Collision Probability (Pc) Trend

    STARLINK-4421 & STARLINK-36838 Collision Probability (Pc) TrendNot Available

    STARLINK-4421 & STARLINK-36838 Miss Distance (Miss Distance) Trend

    STARLINK-4421 & STARLINK-36838 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4421Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36838Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4421Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36838Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4421

    No nearby objects data