Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.135035E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T14:23:41+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 51789
    NORAD ID 51789
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53708
    NORAD ID 53708
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3639 STARLINK-4694
    Time of Closest Approach 2026-09-12T10:50:46+0000
    Collision Probability (Pc) 1.135035E-6
    Conjunction Distance (km) 2.92 km
    Relative Speed (km/s) 10.449 km/s
    Conjunction Risk Parameters R (Radial): 2.911 | I (In-track): -0.16 | C (Cross-track): 0.153
    Collision Risk Index (CRI) 0.36
    X Position (km) 2030.531 2029.461
    Position Y (km) 5253.556 5251.401
    Position Z (km) -3890.874 -3889.221
    Velocity X (km/s) -6.255 -4.117
    Velocity Y (km/s) -0.763 4.772
    Velocity Z (km/s) -4.299 4.301

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3639 STARLINK-4694
    Semimajor Axis (a) 6840.855 km 6837.876 km
    Eccentricity (e) 0.000123 0.000128
    Inclination (i) 53.1581° 53.1608°
    RAAN 228.2200° 107.0347°
    Perigee Argument 82.8371° 91.1818°
    Mean Anomaly (M) 277.2771° 268.9331°
    Apogee 463.559 km 460.613 km
    Perigee 461.877 km 458.865 km
    Orbit Epoch 2026-09-10T04:43:05+0000 2026-09-10T23:06:41+0000

    STARLINK-3639 & STARLINK-4694 Collision Probability (Pc) Trend

    STARLINK-3639 & STARLINK-4694 Collision Probability (Pc) TrendNot Available

    STARLINK-3639 & STARLINK-4694 Miss Distance (Miss Distance) Trend

    STARLINK-3639 & STARLINK-4694 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3639Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4694Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3639Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4694Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3639

    No nearby objects data