Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.768587E-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 65240
    NORAD ID 65240
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4521 STARLINK-34953
    Time of Closest Approach 2026-09-04T11:17:49+0000
    Collision Probability (Pc) 1.768587E-6
    Conjunction Distance (km) 2.35 km
    Relative Speed (km/s) 12.319 km/s
    Conjunction Risk Parameters R (Radial): -2.313 | I (In-track): 0.24 | C (Cross-track): -0.331
    Collision Risk Index (CRI) 0.4
    X Position (km) -1857.337 -1857.06
    Position Y (km) 3679.446 3678.299
    Position Z (km) 5459.705 5457.673
    Velocity X (km/s) -6.526 -1.253
    Velocity Y (km/s) -3.939 6.046
    Velocity Z (km/s) 0.434 -4.49

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4521 STARLINK-34953
    Semimajor Axis (a) 6848.886 km 6843.688 km
    Eccentricity (e) 0.000146 0.000120
    Inclination (i) 53.1621° 97.2832°
    RAAN 41.5286° 286.1121°
    Perigee Argument 67.0918° 58.0331°
    Mean Anomaly (M) 293.0237° 302.1028°
    Apogee 471.749 km 466.369 km
    Perigee 469.749 km 464.733 km
    Orbit Epoch 2026-09-02T18:12:27+0000 2026-09-03T12:49:21+0000

    STARLINK-4521 & STARLINK-34953 Collision Probability (Pc) Trend

    STARLINK-4521 & STARLINK-34953 Collision Probability (Pc) TrendNot Available

    STARLINK-4521 & STARLINK-34953 Miss Distance (Miss Distance) Trend

    STARLINK-4521 & STARLINK-34953 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4521Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34953Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4521Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34953Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4521

    No nearby objects data