Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.595424E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-16T14:42:44+0800
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    1 Object 1

    AOE ID 51738
    NORAD ID 51738
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53654
    NORAD ID 53654
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3515 STARLINK-4420
    Time of Closest Approach 2026-10-16T18:06:29+0000
    Collision Probability (Pc) 1.595424E-6
    Conjunction Distance (km) 2.586 km
    Relative Speed (km/s) 13.894 km/s
    Conjunction Risk Parameters R (Radial): -2.457 | I (In-track): 0.337 | C (Cross-track): -0.729
    Collision Risk Index (CRI) 0.39
    X Position (km) 4463.445 4461.786
    Position Y (km) -1750.021 -1748.658
    Position Z (km) -4898.368 -4896.928
    Velocity X (km/s) 4.994 -5.489
    Velocity Y (km/s) 5.061 0.667
    Velocity Z (km/s) 2.744 -5.244

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3515 STARLINK-4420
    Semimajor Axis (a) 6848.876 km 6843.693 km
    Eccentricity (e) 0.000100 0.000223
    Inclination (i) 53.1604° 97.2864°
    RAAN 34.0014° 165.2993°
    Perigee Argument 92.3523° 90.2019°
    Mean Anomaly (M) 267.7593° 269.9479°
    Apogee 471.425 km 467.083 km
    Perigee 470.053 km 464.029 km
    Orbit Epoch 2026-10-15T14:11:44+0000 2026-10-15T22:19:56+0000

    STARLINK-3515 & STARLINK-4420 Collision Probability (Pc) Trend

    STARLINK-3515 & STARLINK-4420 Collision Probability (Pc) TrendNot Available

    STARLINK-3515 & STARLINK-4420 Miss Distance (Miss Distance) Trend

    STARLINK-3515 & STARLINK-4420 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3515Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4420Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3515Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4420Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3515

    No nearby objects data