Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    4.584236E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-13T07:43:34+0800
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    1 Object 1

    AOE ID 52331
    NORAD ID 52331
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53608
    NORAD ID 53608
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3889 STARLINK-4647
    Time of Closest Approach 2026-10-13T08:24:54+0000
    Collision Probability (Pc) 4.584236E-7
    Conjunction Distance (km) 2.875 km
    Relative Speed (km/s) 1.726 km/s
    Conjunction Risk Parameters R (Radial): 2.623 | I (In-track): -1.17 | C (Cross-track): 0.139
    Collision Risk Index (CRI) 0.28
    X Position (km) -3028.193 -3030.159
    Position Y (km) -2811.467 -2811.684
    Position Z (km) -5455.962 -5458.048
    Velocity X (km/s) 4.652 5.658
    Velocity Y (km/s) -6.019 -5.083
    Velocity Z (km/s) 0.52 -0.523

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3889 STARLINK-4647
    Semimajor Axis (a) 6838.009 km 6840.844 km
    Eccentricity (e) 0.000200 0.000158
    Inclination (i) 53.1575° 53.1607°
    RAAN 309.8752° 326.1129°
    Perigee Argument 79.9651° 85.7494°
    Mean Anomaly (M) 280.1578° 274.3689°
    Apogee 461.243 km 463.787 km
    Perigee 458.501 km 461.627 km
    Orbit Epoch 2026-10-12T06:13:35+0000 2026-10-12T06:15:09+0000

    STARLINK-3889 & STARLINK-4647 Collision Probability (Pc) Trend

    STARLINK-3889 & STARLINK-4647 Collision Probability (Pc) TrendNot Available

    STARLINK-3889 & STARLINK-4647 Miss Distance (Miss Distance) Trend

    STARLINK-3889 & STARLINK-4647 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3889Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4647Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3889Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4647Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3889

    No nearby objects data