Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.568379E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:49:42+0800
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    1 Object 1

    AOE ID 52472
    NORAD ID 52472
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53964
    NORAD ID 53964
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3881 STARLINK-4633
    Time of Closest Approach 2026-10-21T07:41:20+0000
    Collision Probability (Pc) 1.568379E-6
    Conjunction Distance (km) 2.494 km
    Relative Speed (km/s) 12.149 km/s
    Conjunction Risk Parameters R (Radial): 2.416 | I (In-track): 0.376 | C (Cross-track): 0.494
    Collision Risk Index (CRI) 0.39
    X Position (km) -1607 -1605.83
    Position Y (km) 6580.995 6578.82
    Position Z (km) -984.979 -984.631
    Velocity X (km/s) -4.697 -4.286
    Velocity Y (km/s) -0.254 -1.939
    Velocity Z (km/s) 6.011 -6.012

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3881 STARLINK-4633
    Semimajor Axis (a) 6843.372 km 6840.875 km
    Eccentricity (e) 0.000140 0.000158
    Inclination (i) 53.1575° 53.1568°
    RAAN 120.9296° 287.0618°
    Perigee Argument 88.7183° 71.7791°
    Mean Anomaly (M) 271.3980° 288.3383°
    Apogee 466.194 km 463.819 km
    Perigee 464.276 km 461.657 km
    Orbit Epoch 2026-10-18T23:25:32+0000 2026-10-19T06:24:09+0000

    STARLINK-3881 & STARLINK-4633 Collision Probability (Pc) Trend

    STARLINK-3881 & STARLINK-4633 Collision Probability (Pc) TrendNot Available

    STARLINK-3881 & STARLINK-4633 Miss Distance (Miss Distance) Trend

    STARLINK-3881 & STARLINK-4633 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3881Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4633Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3881Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4633Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3881

    No nearby objects data