Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    7.269117E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T18:12:07+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 47800
    NORAD ID 47800
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53469
    NORAD ID 53469
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2381 STARLINK-4399
    Time of Closest Approach 2026-10-21T15:03:58+0000
    Collision Probability (Pc) 7.269117E-6
    Conjunction Distance (km) 1.45 km
    Relative Speed (km/s) 14.145 km/s
    Conjunction Risk Parameters R (Radial): 1.034 | I (In-track): 0.378 | C (Cross-track): 0.945
    Collision Risk Index (CRI) 0.52
    X Position (km) -3588.304 -3588.628
    Position Y (km) -3631.23 -3630.327
    Position Z (km) -4570.444 -4569.357
    Velocity X (km/s) 2.245 2.597
    Velocity Y (km/s) -6.458 4.473
    Velocity Z (km/s) 3.371 -5.599

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2381 STARLINK-4399
    Semimajor Axis (a) 6846.866 km 6843.977 km
    Eccentricity (e) 0.000141 0.000182
    Inclination (i) 53.1590° 97.2873°
    RAAN 279.9209° 49.1023°
    Perigee Argument 95.0733° 107.7947°
    Mean Anomaly (M) 265.0430° 252.3493°
    Apogee 469.696 km 467.083 km
    Perigee 467.762 km 464.597 km
    Orbit Epoch 2026-10-18T23:08:07+0000 2026-10-18T18:45:20+0000

    STARLINK-2381 & STARLINK-4399 Collision Probability (Pc) Trend

    STARLINK-2381 & STARLINK-4399 Collision Probability (Pc) TrendNot Available

    STARLINK-2381 & STARLINK-4399 Miss Distance (Miss Distance) Trend

    STARLINK-2381 & STARLINK-4399 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2381Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4399Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2381Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4399Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2381

    No nearby objects data