Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.32559E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:30:19+0800
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    1 Object 1

    AOE ID 53002
    NORAD ID 53002
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 69449
    NORAD ID 69449
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4121 STARLINK-37643
    Time of Closest Approach 2026-10-20T04:01:17+0000
    Collision Probability (Pc) 1.32559E-6
    Conjunction Distance (km) 2.619 km
    Relative Speed (km/s) 10.49 km/s
    Conjunction Risk Parameters R (Radial): 1.188 | I (In-track): -1.696 | C (Cross-track): 1.603
    Collision Risk Index (CRI) 0.37
    X Position (km) -5620.284 -5621.099
    Position Y (km) 389.25 391.646
    Position Z (km) 3866.379 3867.052
    Velocity X (km/s) 2.583 -3.353
    Velocity Y (km/s) -5.749 -5.337
    Velocity Z (km/s) 4.32 -4.319

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4121 STARLINK-37643
    Semimajor Axis (a) 6837.877 km 6840.795 km
    Eccentricity (e) 0.000139 0.000350
    Inclination (i) 53.1575° 53.1534°
    RAAN 150.2903° 31.0624°
    Perigee Argument 88.5503° 110.8629°
    Mean Anomaly (M) 271.5660° 249.2748°
    Apogee 460.692 km 465.050 km
    Perigee 458.788 km 460.266 km
    Orbit Epoch 2026-10-19T01:16:06+0000 2026-10-19T07:06:53+0000

    STARLINK-4121 & STARLINK-37643 Collision Probability (Pc) Trend

    STARLINK-4121 & STARLINK-37643 Collision Probability (Pc) TrendNot Available

    STARLINK-4121 & STARLINK-37643 Miss Distance (Miss Distance) Trend

    STARLINK-4121 & STARLINK-37643 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37643Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37643Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4121

    No nearby objects data