Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.427981E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T04:07:06+0800
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    1 Object 1

    AOE ID 51865
    NORAD ID 51865
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 52644
    NORAD ID 52644
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3503 STARLINK-3985
    Time of Closest Approach 2026-10-20T21:42:16+0000
    Collision Probability (Pc) 1.427981E-6
    Conjunction Distance (km) 2.471 km
    Relative Speed (km/s) 10.081 km/s
    Conjunction Risk Parameters R (Radial): 2.308 | I (In-track): -0.662 | C (Cross-track): 0.586
    Collision Risk Index (CRI) 0.38
    X Position (km) 535.652 536.351
    Position Y (km) -5441.929 -5440.007
    Position Z (km) -4117.385 -4115.999
    Velocity X (km/s) 5.401 5.997
    Velocity Y (km/s) 3.576 -2.453
    Velocity Z (km/s) -4.028 4.028

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3503 STARLINK-3985
    Semimajor Axis (a) 6840.929 km 6837.856 km
    Eccentricity (e) 0.000094 0.000131
    Inclination (i) 53.1596° 53.1547°
    RAAN 68.9895° 318.5020°
    Perigee Argument 94.1000° 81.1882°
    Mean Anomaly (M) 350.7003° 278.9270°
    Apogee 463.438 km 460.616 km
    Perigee 462.146 km 458.822 km
    Orbit Epoch 2026-10-19T06:00:01+0000 2026-10-19T02:10:27+0000

    STARLINK-3503 & STARLINK-3985 Collision Probability (Pc) Trend

    STARLINK-3503 & STARLINK-3985 Collision Probability (Pc) TrendNot Available

    STARLINK-3503 & STARLINK-3985 Miss Distance (Miss Distance) Trend

    STARLINK-3503 & STARLINK-3985 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3503Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3985Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3503Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3985Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3503

    No nearby objects data