Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.143078E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T21:01:26+0800
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    1 Object 1

    AOE ID 53578
    NORAD ID 53578
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 64881
    NORAD ID 64881
    Object Type UNKNOWN
    Country
    TBD TBD

    Conjunction Constraints

    Parameter STARLINK-4556 OBJECT F
    Time of Closest Approach 2026-10-21T01:00:53+0000
    Collision Probability (Pc) 3.143078E-6
    Conjunction Distance (km) 1.924 km
    Relative Speed (km/s) 14.639 km/s
    Conjunction Risk Parameters R (Radial): -1.358 | I (In-track): -0.395 | C (Cross-track): 1.305
    Collision Risk Index (CRI) 0.45
    X Position (km) 934.238 935.316
    Position Y (km) 6190.233 6189.042
    Position Z (km) -2768.459 -2767.401
    Velocity X (km/s) -4.598 0.617
    Velocity Y (km/s) 3.047 -3.171
    Velocity Z (km/s) 5.272 -6.911

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4556 OBJECT F
    Semimajor Axis (a) 6840.886 km 6835.576 km
    Eccentricity (e) 0.000177 0.000921
    Inclination (i) 53.1576° 97.4713°
    RAAN 106.8478° 263.9679°
    Perigee Argument 101.9741° 91.4068°
    Mean Anomaly (M) 258.1459° 268.8231°
    Apogee 463.958 km 463.737 km
    Perigee 461.540 km 451.141 km
    Orbit Epoch 2026-10-19T17:52:53+0000 2026-10-20T06:56:03+0000

    STARLINK-4556 & OBJECT F Collision Probability (Pc) Trend

    STARLINK-4556 & OBJECT F Collision Probability (Pc) TrendNot Available

    STARLINK-4556 & OBJECT F Miss Distance (Miss Distance) Trend

    STARLINK-4556 & OBJECT F Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4556Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    OBJECT FMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4556Collision Probability Trend

    Object 1 Probability TrendNot Available

    OBJECT FCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4556

    No nearby objects data