Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.761162E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T11:55:16+0800
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    1 Object 1

    AOE ID 53423
    NORAD ID 53423
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 64880
    NORAD ID 64880
    Object Type UNKNOWN
    Country
    TBD TBD

    Conjunction Constraints

    Parameter STARLINK-4539 OBJECT E
    Time of Closest Approach 2026-09-03T17:57:00+0000
    Collision Probability (Pc) 1.761162E-6
    Conjunction Distance (km) 2.489 km
    Relative Speed (km/s) 14.671 km/s
    Conjunction Risk Parameters R (Radial): -1.119 | I (In-track): -0.599 | C (Cross-track): -2.139
    Collision Risk Index (CRI) 0.4
    X Position (km) 4960.754 4960.542
    Position Y (km) 3999.411 4001.854
    Position Z (km) 2503.969 2503.547
    Velocity X (km/s) -4.755 2.823
    Velocity Y (km/s) 2.482 0.91
    Velocity Z (km/s) 5.432 -7.031

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4539 OBJECT E
    Semimajor Axis (a) 6848.846 km 6847.292 km
    Eccentricity (e) 0.000116 0.000519
    Inclination (i) 53.1619° 97.4640°
    RAAN 31.1860° 214.7945°
    Perigee Argument 102.1787° 259.0155°
    Mean Anomaly (M) 257.9345° 101.0503°
    Apogee 471.507 km 472.707 km
    Perigee 469.911 km 465.603 km
    Orbit Epoch 2026-09-01T17:17:10+0000 2026-09-02T14:36:59+0000

    STARLINK-4539 & OBJECT E Collision Probability (Pc) Trend

    STARLINK-4539 & OBJECT E Collision Probability (Pc) TrendNot Available

    STARLINK-4539 & OBJECT E Miss Distance (Miss Distance) Trend

    STARLINK-4539 & OBJECT E Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4539Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT EMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4539Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT ECollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4539

    No nearby objects data