Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    8.523284E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T14:18:56+0800
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    1 Object 1

    AOE ID 58685
    NORAD ID 58685
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66819
    NORAD ID 66819
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31121 STARLINK-35989
    Time of Closest Approach 2026-10-21T18:43:13+0000
    Collision Probability (Pc) 8.523284E-5
    Conjunction Distance (km) 0.476 km
    Relative Speed (km/s) 2.652 km/s
    Conjunction Risk Parameters R (Radial): -0.468 | I (In-track): -0.079 | C (Cross-track): -0.015
    Collision Risk Index (CRI) 0.74
    X Position (km) 5053.093 5052.739
    Position Y (km) -635.494 -635.531
    Position Z (km) 4589.223 4588.908
    Velocity X (km/s) 1.82 0.056
    Velocity Y (km/s) 7.341 7.563
    Velocity Z (km/s) -0.984 0.984

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31121 STARLINK-35989
    Semimajor Axis (a) 6861.273 km 6861.149 km
    Eccentricity (e) 0.000134 0.000151
    Inclination (i) 43.0007° 42.9994°
    RAAN 261.8364° 291.7091°
    Perigee Argument 271.7679° 273.0381°
    Mean Anomaly (M) 88.3019° 87.0298°
    Apogee 484.054 km 484.049 km
    Perigee 482.218 km 481.975 km
    Orbit Epoch 2026-10-19T08:13:00+0000 2026-10-19T06:44:46+0000

    STARLINK-31121 & STARLINK-35989 Collision Probability (Pc) Trend

    STARLINK-31121 & STARLINK-35989 Collision Probability (Pc) TrendNot Available

    STARLINK-31121 & STARLINK-35989 Miss Distance (Miss Distance) Trend

    STARLINK-31121 & STARLINK-35989 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35989Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35989Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31121

    No nearby objects data