Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.711788E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:38:30+0800
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    1 Object 1

    AOE ID 53780
    NORAD ID 53780
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 64617
    NORAD ID 64617
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4678 STARLINK-34417
    Time of Closest Approach 2026-10-21T11:21:41+0000
    Collision Probability (Pc) 2.711788E-6
    Conjunction Distance (km) 1.347 km
    Relative Speed (km/s) 2.144 km/s
    Conjunction Risk Parameters R (Radial): -1.254 | I (In-track): -0.485 | C (Cross-track): -0.07
    Collision Risk Index (CRI) 0.44
    X Position (km) 1485.812 1485.997
    Position Y (km) 3863.928 3863.043
    Position Z (km) 5435.939 5434.94
    Velocity X (km/s) -6.753 -7.367
    Velocity Y (km/s) 3.512 1.92
    Velocity Z (km/s) -0.649 0.648

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4678 STARLINK-34417
    Semimajor Axis (a) 6840.879 km 6840.827 km
    Eccentricity (e) 0.000147 0.000286
    Inclination (i) 53.1591° 53.1575°
    RAAN 339.6026° 359.4743°
    Perigee Argument 91.3406° 83.1660°
    Mean Anomaly (M) 268.7764° 276.9668°
    Apogee 463.745 km 464.650 km
    Perigee 461.739 km 460.730 km
    Orbit Epoch 2026-10-19T04:13:50+0000 2026-10-19T05:50:56+0000

    STARLINK-4678 & STARLINK-34417 Collision Probability (Pc) Trend

    STARLINK-4678 & STARLINK-34417 Collision Probability (Pc) TrendNot Available

    STARLINK-4678 & STARLINK-34417 Miss Distance (Miss Distance) Trend

    STARLINK-4678 & STARLINK-34417 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4678Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34417Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4678Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34417Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4678

    No nearby objects data