Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.327034E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T07:47:01+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 51990
    NORAD ID 51990
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69367
    NORAD ID 69367
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3657 STARLINK-37683
    Time of Closest Approach 2026-10-21T15:15:35+0000
    Collision Probability (Pc) 1.327034E-6
    Conjunction Distance (km) 2.306 km
    Relative Speed (km/s) 7.139 km/s
    Conjunction Risk Parameters R (Radial): 1.047 | I (In-track): 1.818 | C (Cross-track): 0.958
    Collision Risk Index (CRI) 0.37
    X Position (km) -2464.55 -2462.432
    Position Y (km) 3925.715 3926.203
    Position Z (km) 5021.287 5020.519
    Velocity X (km/s) -4.325 -7.118
    Velocity Y (km/s) -5.815 -1.366
    Velocity Z (km/s) 2.417 -2.416

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3657 STARLINK-37683
    Semimajor Axis (a) 6840.870 km 6840.884 km
    Eccentricity (e) 0.000143 0.000241
    Inclination (i) 53.1622° 53.1566°
    RAAN 78.2310° 7.7788°
    Perigee Argument 85.0651° 92.7696°
    Mean Anomaly (M) 275.0515° 267.3583°
    Apogee 463.715 km 464.398 km
    Perigee 461.751 km 461.096 km
    Orbit Epoch 2026-10-19T09:49:11+0000 2026-10-19T04:55:48+0000

    STARLINK-3657 & STARLINK-37683 Collision Probability (Pc) Trend

    STARLINK-3657 & STARLINK-37683 Collision Probability (Pc) TrendNot Available

    STARLINK-3657 & STARLINK-37683 Miss Distance (Miss Distance) Trend

    STARLINK-3657 & STARLINK-37683 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3657Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37683Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3657Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37683Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3657

    No nearby objects data