Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    4.776089E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T03:30:23+0800
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    1 Object 1

    AOE ID 52879
    NORAD ID 52879
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66373
    NORAD ID 66373
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4139 STARLINK-35809
    Time of Closest Approach 2026-10-21T14:20:08+0000
    Collision Probability (Pc) 4.776089E-5
    Conjunction Distance (km) 0.808 km
    Relative Speed (km/s) 12.036 km/s
    Conjunction Risk Parameters R (Radial): -0.802 | I (In-track): -0.063 | C (Cross-track): 0.074
    Collision Risk Index (CRI) 0.69
    X Position (km) 2463.502 2463.304
    Position Y (km) 6184.04 6183.28
    Position Z (km) 1571.148 1570.958
    Velocity X (km/s) -4.885 -3.856
    Velocity Y (km/s) 0.449 3.033
    Velocity Z (km/s) 5.855 -5.855

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4139 STARLINK-35809
    Semimajor Axis (a) 6840.887 km 6840.798 km
    Eccentricity (e) 0.000132 0.000201
    Inclination (i) 53.1570° 53.1540°
    RAAN 69.6748° 269.5783°
    Perigee Argument 78.3300° 92.0314°
    Mean Anomaly (M) 281.7851° 268.0919°
    Apogee 463.656 km 464.039 km
    Perigee 461.844 km 461.283 km
    Orbit Epoch 2026-10-19T02:51:33+0000 2026-10-19T05:21:14+0000

    STARLINK-4139 & STARLINK-35809 Collision Probability (Pc) Trend

    STARLINK-4139 & STARLINK-35809 Collision Probability (Pc) TrendNot Available

    STARLINK-4139 & STARLINK-35809 Miss Distance (Miss Distance) Trend

    STARLINK-4139 & STARLINK-35809 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4139Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35809Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4139Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35809Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4139

    No nearby objects data