Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.499873E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T21:32:11+0800
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    1 Object 1

    AOE ID 53180
    NORAD ID 53180
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 58393
    NORAD ID 58393
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4258 STARLINK-30939
    Time of Closest Approach 2026-10-28T14:17:35+0000
    Collision Probability (Pc) 1.499873E-6
    Conjunction Distance (km) 2.526 km
    Relative Speed (km/s) 11.699 km/s
    Conjunction Risk Parameters R (Radial): -2.49 | I (In-track): 0.265 | C (Cross-track): -0.329
    Collision Risk Index (CRI) 0.39
    X Position (km) -5862.354 -5860.389
    Position Y (km) 2510.128 2508.828
    Position Z (km) 2475.659 2474.749
    Velocity X (km/s) 0.02 -3.887
    Velocity Y (km/s) -5.351 -3.678
    Velocity Z (km/s) 5.449 -5.45

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4258 STARLINK-30939
    Semimajor Axis (a) 6843.379 km 6840.878 km
    Eccentricity (e) 0.000125 0.000176
    Inclination (i) 53.1587° 53.1623°
    RAAN 143.5742° 358.4410°
    Perigee Argument 91.9220° 76.4755°
    Mean Anomaly (M) 268.1926° 283.6444°
    Apogee 466.097 km 463.948 km
    Perigee 464.387 km 461.534 km
    Orbit Epoch 2026-10-27T19:24:25+0000 2026-10-27T14:10:49+0000

    STARLINK-4258 & STARLINK-30939 Collision Probability (Pc) Trend

    STARLINK-4258 & STARLINK-30939 Collision Probability (Pc) TrendNot Available

    STARLINK-4258 & STARLINK-30939 Miss Distance (Miss Distance) Trend

    STARLINK-4258 & STARLINK-30939 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4258Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30939Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4258Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30939Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4258

    No nearby objects data