Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.145184E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:03:46+0800
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    1 Object 1

    AOE ID 53391
    NORAD ID 53391
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 67740
    NORAD ID 67740
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4521 STARLINK-36737
    Time of Closest Approach 2026-09-05T13:58:05+0000
    Collision Probability (Pc) 1.145184E-6
    Conjunction Distance (km) 2.974 km
    Relative Speed (km/s) 11.034 km/s
    Conjunction Risk Parameters R (Radial): -2.668 | I (In-track): -0.908 | C (Cross-track): 0.945
    Collision Risk Index (CRI) 0.36
    X Position (km) -2690.738 -2688.569
    Position Y (km) 3173.252 3171.838
    Position Z (km) 5430.287 5428.826
    Velocity X (km/s) -6.391 -2.622
    Velocity Y (km/s) -4.105 5.556
    Velocity Z (km/s) -0.766 -4.533

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4521 STARLINK-36737
    Semimajor Axis (a) 6848.886 km 6843.677 km
    Eccentricity (e) 0.000146 0.000104
    Inclination (i) 53.1621° 97.2852°
    RAAN 41.5286° 298.7183°
    Perigee Argument 67.0918° 86.0977°
    Mean Anomaly (M) 293.0237° 274.0385°
    Apogee 471.749 km 466.253 km
    Perigee 469.749 km 464.827 km
    Orbit Epoch 2026-09-02T18:12:27+0000 2026-09-03T14:26:04+0000

    STARLINK-4521 & STARLINK-36737 Collision Probability (Pc) Trend

    STARLINK-4521 & STARLINK-36737 Collision Probability (Pc) TrendNot Available

    STARLINK-4521 & STARLINK-36737 Miss Distance (Miss Distance) Trend

    STARLINK-4521 & STARLINK-36737 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4521Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36737Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4521Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36737Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4521

    No nearby objects data