Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.869411E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T02:53:44+0800
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    1 Object 1

    AOE ID 52621
    NORAD ID 52621
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66199
    NORAD ID 66199
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3984 STARLINK-35509
    Time of Closest Approach 2026-10-19T04:46:07+0000
    Collision Probability (Pc) 8.869411E-7
    Conjunction Distance (km) 2.489 km
    Relative Speed (km/s) 4.469 km/s
    Conjunction Risk Parameters R (Radial): 2.215 | I (In-track): 1.085 | C (Cross-track): -0.333
    Collision Risk Index (CRI) 0.34
    X Position (km) 3426.512 3426.943
    Position Y (km) 2572.289 2574.031
    Position Z (km) 5319.344 5321.068
    Velocity X (km/s) -5.78 -2.994
    Velocity Y (km/s) 4.797 6.887
    Velocity Z (km/s) 1.4 -1.4

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3984 STARLINK-35509
    Semimajor Axis (a) 6837.872 km 6840.810 km
    Eccentricity (e) 0.000102 0.000177
    Inclination (i) 53.1580° 53.1581°
    RAAN 333.2715° 291.0470°
    Perigee Argument 81.0680° 92.2210°
    Mean Anomaly (M) 279.0438° 267.8995°
    Apogee 460.430 km 463.885 km
    Perigee 459.040 km 461.461 km
    Orbit Epoch 2026-10-18T03:26:25+0000 2026-10-18T00:11:00+0000

    STARLINK-3984 & STARLINK-35509 Collision Probability (Pc) Trend

    STARLINK-3984 & STARLINK-35509 Collision Probability (Pc) TrendNot Available

    STARLINK-3984 & STARLINK-35509 Miss Distance (Miss Distance) Trend

    STARLINK-3984 & STARLINK-35509 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3984Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35509Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3984Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35509Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3984

    No nearby objects data