Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.603248E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T19:24:29+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 47978
    NORAD ID 47978
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 50812
    NORAD ID 50812
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1647 STARLINK-3338
    Time of Closest Approach 2026-10-19T01:27:33+0000
    Collision Probability (Pc) 1.603248E-6
    Conjunction Distance (km) 2.443 km
    Relative Speed (km/s) 11.835 km/s
    Conjunction Risk Parameters R (Radial): -2.438 | I (In-track): 0.094 | C (Cross-track): 0.095
    Collision Risk Index (CRI) 0.39
    X Position (km) 5754.75 5756.861
    Position Y (km) 2976.91 2977.853
    Position Z (km) 2180.14 2180.93
    Velocity X (km/s) -3.903 -0.536
    Velocity Y (km/s) 3.421 5.161
    Velocity Z (km/s) 5.606 -5.605

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1647 STARLINK-3338
    Semimajor Axis (a) 6838.525 km 6840.886 km
    Eccentricity (e) 0.000097 0.000143
    Inclination (i) 53.1593° 53.1599°
    RAAN 16.9265° 229.1006°
    Perigee Argument 82.2684° 95.4364°
    Mean Anomaly (M) 36.8972° 264.6802°
    Apogee 461.052 km 463.726 km
    Perigee 459.724 km 461.772 km
    Orbit Epoch 2026-10-18T04:00:02+0000 2026-10-17T12:49:32+0000

    STARLINK-1647 & STARLINK-3338 Collision Probability (Pc) Trend

    STARLINK-1647 & STARLINK-3338 Collision Probability (Pc) TrendNot Available

    STARLINK-1647 & STARLINK-3338 Miss Distance (Miss Distance) Trend

    STARLINK-1647 & STARLINK-3338 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1647Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3338Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1647Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3338Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1647

    No nearby objects data