Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    5.167339E-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 2026-09-05T07:17:39+0000
    Collision Probability (Pc) 5.167339E-6
    Conjunction Distance (km) 1.443 km
    Relative Speed (km/s) 8.371 km/s
    Conjunction Risk Parameters R (Radial): 1.328 | I (In-track): -0.469 | C (Cross-track): 0.315
    Collision Risk Index (CRI) 0.49
    X Position (km) 879.108 879.835
    Position Y (km) 4817.347 4818.178
    Position Z (km) 4763.403 4764.333
    Velocity X (km/s) -6.813 -5.764
    Velocity Y (km/s) -1.727 4.022
    Velocity Z (km/s) 2.996 -2.996

    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