Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.992915E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T02:03:04+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 51996
    NORAD ID 51996
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3639 STARLINK-3538
    Time of Closest Approach 2026-10-30T00:15:36+0000
    Collision Probability (Pc) 6.992915E-7
    Conjunction Distance (km) 2.579 km
    Relative Speed (km/s) 3.163 km/s
    Conjunction Risk Parameters R (Radial): 2.325 | I (In-track): 1.091 | C (Cross-track): -0.229
    Collision Risk Index (CRI) 0.32
    X Position (km) 753.747 755.099
    Position Y (km) -4129.415 -4130.618
    Position Z (km) -5408.141 -5409.977
    Velocity X (km/s) 7.562 7.111
    Velocity Y (km/s) 0.112 2.569
    Velocity Z (km/s) 0.969 -0.97

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3639 STARLINK-3538
    Semimajor Axis (a) 6840.917 km 6843.132 km
    Eccentricity (e) 0.000127 0.000128
    Inclination (i) 53.1595° 53.1616°
    RAAN 9.4259° 40.8141°
    Perigee Argument 84.2605° 113.3693°
    Mean Anomaly (M) 113.5789° 246.7444°
    Apogee 463.648 km 465.873 km
    Perigee 461.912 km 464.117 km
    Orbit Epoch 2026-10-27T00:00:02+0000 2026-10-26T16:55:39+0000

    STARLINK-3639 & STARLINK-3538 Collision Probability (Pc) Trend

    STARLINK-3639 & STARLINK-3538 Collision Probability (Pc) TrendNot Available

    STARLINK-3639 & STARLINK-3538 Miss Distance (Miss Distance) Trend

    STARLINK-3639 & STARLINK-3538 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3639Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-3538Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3639Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-3538Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3639

    No nearby objects data