Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.432563E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:49:09+0800
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    1 Object 1

    AOE ID 53400
    NORAD ID 53400
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 66156
    NORAD ID 66156
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4520 STARLINK-35621
    Time of Closest Approach 2026-09-05T04:57:01+0000
    Collision Probability (Pc) 1.432563E-6
    Conjunction Distance (km) 2.325 km
    Relative Speed (km/s) 8.355 km/s
    Conjunction Risk Parameters R (Radial): 2.185 | I (In-track): -0.663 | C (Cross-track): -0.436
    Collision Risk Index (CRI) 0.38
    X Position (km) -841.999 -843.05
    Position Y (km) -4832.648 -4834.054
    Position Z (km) -4771.809 -4773.334
    Velocity X (km/s) 6.786 5.785
    Velocity Y (km/s) 1.773 -3.964
    Velocity Z (km/s) -2.996 2.995

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4520 STARLINK-35621
    Semimajor Axis (a) 6837.795 km 6840.717 km
    Eccentricity (e) 0.000127 0.000177
    Inclination (i) 53.1608° 53.1583°
    RAAN 45.5741° 323.6415°
    Perigee Argument 77.9916° 106.6567°
    Mean Anomaly (M) 56.8003° 253.4630°
    Apogee 460.530 km 463.788 km
    Perigee 458.786 km 461.372 km
    Orbit Epoch 2026-09-02T14:00:02+0000 2026-09-01T15:14:41+0000

    STARLINK-4520 & STARLINK-35621 Collision Probability (Pc) Trend

    STARLINK-4520 & STARLINK-35621 Collision Probability (Pc) TrendNot Available

    STARLINK-4520 & STARLINK-35621 Miss Distance (Miss Distance) Trend

    STARLINK-4520 & STARLINK-35621 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4520Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35621Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4520Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35621Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4520

    No nearby objects data