Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.487332E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T14:43:10+0800
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    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 2026-09-12T21:58:18+0000
    Collision Probability (Pc) 1.487332E-6
    Conjunction Distance (km) 2.528 km
    Relative Speed (km/s) 11.557 km/s
    Conjunction Risk Parameters R (Radial): 1.702 | I (In-track): 1.224 | C (Cross-track): 1.413
    Collision Risk Index (CRI) 0.38
    X Position (km) -2120.024 -2119.149
    Position Y (km) 3527.087 3527.811
    Position Z (km) -5471.747 -5469.489
    Velocity X (km/s) -6.324 4.444
    Velocity Y (km/s) -4.247 -4.276
    Velocity Z (km/s) -0.288 -4.482

    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