Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.900608E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:49:22+0800
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    1 Object 1

    AOE ID 53221
    NORAD ID 53221
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58447
    NORAD ID 58447
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4377 STARLINK-30976
    Time of Closest Approach 2026-09-04T11:38:06+0000
    Collision Probability (Pc) 4.900608E-6
    Conjunction Distance (km) 1.643 km
    Relative Speed (km/s) 14.294 km/s
    Conjunction Risk Parameters R (Radial): 1.517 | I (In-track): -0.215 | C (Cross-track): 0.593
    Collision Risk Index (CRI) 0.49
    X Position (km) 3765.901 3766.238
    Position Y (km) -5581.055 -5582.555
    Position Z (km) -1319.125 -1319.702
    Velocity X (km/s) -0.007 4.164
    Velocity Y (km/s) -1.749 3.985
    Velocity Z (km/s) 7.42 -4.991

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4377 STARLINK-30976
    Semimajor Axis (a) 6856.763 km 6861.225 km
    Eccentricity (e) 0.000063 0.000140
    Inclination (i) 97.2841° 43.0012°
    RAAN 300.7940° 126.1054°
    Perigee Argument 65.7066° 269.7052°
    Mean Anomaly (M) 1.4506° 90.3640°
    Apogee 479.058 km 484.047 km
    Perigee 478.194 km 482.129 km
    Orbit Epoch 2026-09-02T16:00:02+0000 2026-09-01T23:08:50+0000

    STARLINK-4377 & STARLINK-30976 Collision Probability (Pc) Trend

    STARLINK-4377 & STARLINK-30976 Collision Probability (Pc) TrendNot Available

    STARLINK-4377 & STARLINK-30976 Miss Distance (Miss Distance) Trend

    STARLINK-4377 & STARLINK-30976 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4377Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30976Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4377Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30976Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4377

    No nearby objects data