Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.241983E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T06:15:18+0800
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    1 Object 1

    AOE ID 53149
    NORAD ID 53149
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53829
    NORAD ID 53829
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4021 STARLINK-4759
    Time of Closest Approach 2026-10-22T14:03:26+0000
    Collision Probability (Pc) 1.241983E-6
    Conjunction Distance (km) 2.856 km
    Relative Speed (km/s) 11.648 km/s
    Conjunction Risk Parameters R (Radial): -2.682 | I (In-track): 0.63 | C (Cross-track): 0.749
    Collision Risk Index (CRI) 0.37
    X Position (km) 6274.987 6272.391
    Position Y (km) 855.735 856.368
    Position Z (km) 2578.549 2577.541
    Velocity X (km/s) 1.515 -2.853
    Velocity Y (km/s) 5.197 4.601
    Velocity Z (km/s) -5.39 5.391

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4021 STARLINK-4759
    Semimajor Axis (a) 6840.880 km 6837.887 km
    Eccentricity (e) 0.000127 0.000110
    Inclination (i) 53.1580° 53.1598°
    RAAN 216.9384° 1.3041°
    Perigee Argument 99.6398° 86.8469°
    Mean Anomaly (M) 260.4748° 273.2660°
    Apogee 463.612 km 460.504 km
    Perigee 461.874 km 458.996 km
    Orbit Epoch 2026-10-20T03:33:29+0000 2026-10-20T04:07:57+0000

    STARLINK-4021 & STARLINK-4759 Collision Probability (Pc) Trend

    STARLINK-4021 & STARLINK-4759 Collision Probability (Pc) TrendNot Available

    STARLINK-4021 & STARLINK-4759 Miss Distance (Miss Distance) Trend

    STARLINK-4021 & STARLINK-4759 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4021Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4759Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4021Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4759Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4021

    No nearby objects data