Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.176474E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:49:17+0800
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    1 Object 1

    AOE ID 49455
    NORAD ID 49455
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

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

    Conjunction Constraints

    Parameter STARLINK-3145 STARLINK-4520
    Time of Closest Approach 2026-09-05T11:27:40+0000
    Collision Probability (Pc) 1.176474E-6
    Conjunction Distance (km) 2.627 km
    Relative Speed (km/s) 8.603 km/s
    Conjunction Risk Parameters R (Radial): 2.534 | I (In-track): 0.575 | C (Cross-track): -0.382
    Collision Risk Index (CRI) 0.36
    X Position (km) 4840.403 4838.449
    Position Y (km) -1134.027 -1134.278
    Position Z (km) -4706.601 -4704.865
    Velocity X (km/s) -1.44 4.315
    Velocity Y (km/s) 6.806 5.458
    Velocity Z (km/s) -3.124 3.125

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3145 STARLINK-4520
    Semimajor Axis (a) 6840.862 km 6837.795 km
    Eccentricity (e) 0.000104 0.000127
    Inclination (i) 53.1583° 53.1608°
    RAAN 137.9401° 45.5741°
    Perigee Argument 74.8781° 77.9916°
    Mean Anomaly (M) 285.2338° 56.8003°
    Apogee 463.440 km 460.530 km
    Perigee 462.010 km 458.786 km
    Orbit Epoch 2026-09-01T23:34:15+0000 2026-09-02T14:00:02+0000

    STARLINK-3145 & STARLINK-4520 Collision Probability (Pc) Trend

    STARLINK-3145 & STARLINK-4520 Collision Probability (Pc) TrendNot Available

    STARLINK-3145 & STARLINK-4520 Miss Distance (Miss Distance) Trend

    STARLINK-3145 & STARLINK-4520 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3145Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4520Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3145Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4520Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3145

    No nearby objects data