Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.509811E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T14:43:10+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 53208
    NORAD ID 53208
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3639 STARLINK-4425
    Time of Closest Approach 2026-09-13T00:19:05+0000
    Collision Probability (Pc) 1.509811E-6
    Conjunction Distance (km) 2.511 km
    Relative Speed (km/s) 11.619 km/s
    Conjunction Risk Parameters R (Radial): 2.08 | I (In-track): 0.922 | C (Cross-track): -1.062
    Collision Risk Index (CRI) 0.39
    X Position (km) 2120.064 2119.16
    Position Y (km) -3515.356 -3515.492
    Position Z (km) 5462.229 5459.891
    Velocity X (km/s) 6.357 -4.464
    Velocity Y (km/s) 4.228 4.284
    Velocity Z (km/s) 0.253 4.48

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3639 STARLINK-4425
    Semimajor Axis (a) 6840.855 km 6838.147 km
    Eccentricity (e) 0.000123 0.000135
    Inclination (i) 53.1581° 97.2838°
    RAAN 228.2200° 308.8868°
    Perigee Argument 82.8371° 61.2630°
    Mean Anomaly (M) 277.2771° 30.7403°
    Apogee 463.559 km 460.934 km
    Perigee 461.877 km 459.086 km
    Orbit Epoch 2026-09-10T04:43:05+0000 2026-09-11T00:00:04+0000

    STARLINK-3639 & STARLINK-4425 Collision Probability (Pc) Trend

    STARLINK-3639 & STARLINK-4425 Collision Probability (Pc) TrendNot Available

    STARLINK-3639 & STARLINK-4425 Miss Distance (Miss Distance) Trend

    STARLINK-3639 & STARLINK-4425 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3639Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4425Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3639Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4425Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3639

    No nearby objects data