Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    9.802924E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T05:57:39+0800
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    1 Object 1

    AOE ID 53404
    NORAD ID 53404
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 62661
    NORAD ID 62661
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4509 FLOCK 4G 2
    Time of Closest Approach 2026-10-22T04:52:01+0000
    Collision Probability (Pc) 9.802924E-6
    Conjunction Distance (km) 1.327 km
    Relative Speed (km/s) 14.076 km/s
    Conjunction Risk Parameters R (Radial): -0.748 | I (In-track): 0.426 | C (Cross-track): -1.008
    Collision Risk Index (CRI) 0.55
    X Position (km) 4573.741 4574.239
    Position Y (km) 2022.158 2021.374
    Position Z (km) -4687.293 -4688.24
    Velocity X (km/s) -5.247 5.235
    Velocity Y (km/s) 4.53 0.844
    Velocity Z (km/s) -3.168 5.472

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4509 FLOCK 4G 2
    Semimajor Axis (a) 6848.876 km 6847.851 km
    Eccentricity (e) 0.000136 0.000286
    Inclination (i) 53.1586° 97.3923°
    RAAN 173.6872° 13.8592°
    Perigee Argument 87.8703° 223.3675°
    Mean Anomaly (M) 272.2454° 136.7342°
    Apogee 471.672 km 471.675 km
    Perigee 469.806 km 467.753 km
    Orbit Epoch 2026-10-19T02:13:37+0000 2026-10-19T04:57:04+0000

    STARLINK-4509 & FLOCK 4G 2 Collision Probability (Pc) Trend

    STARLINK-4509 & FLOCK 4G 2 Collision Probability (Pc) TrendNot Available

    STARLINK-4509 & FLOCK 4G 2 Miss Distance (Miss Distance) Trend

    STARLINK-4509 & FLOCK 4G 2 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4509Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    FLOCK 4G 2Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4509Collision Probability Trend

    Object 1 Probability TrendNot Available

    FLOCK 4G 2Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4509

    No nearby objects data