Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.500911E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:53:30+0800
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    1 Object 1

    AOE ID 54183
    NORAD ID 54183
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 55638
    NORAD ID 55638
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5239 STARLINK-5507
    Time of Closest Approach 2026-10-21T02:32:04+0000
    Collision Probability (Pc) 1.500911E-6
    Conjunction Distance (km) 2.134 km
    Relative Speed (km/s) 6.692 km/s
    Conjunction Risk Parameters R (Radial): -0.551 | I (In-track): 1.853 | C (Cross-track): 0.906
    Collision Risk Index (CRI) 0.39
    X Position (km) 3359.741 3361.166
    Position Y (km) -2372.683 -2371.487
    Position Z (km) -5473.037 -5471.991
    Velocity X (km/s) 4.67 6.597
    Velocity Y (km/s) 6.021 0.658
    Velocity Z (km/s) 0.257 3.766

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5239 STARLINK-5507
    Semimajor Axis (a) 6840.843 km 6848.411 km
    Eccentricity (e) 0.000096 0.000336
    Inclination (i) 53.1616° 70.0005°
    RAAN 58.9003° 356.9347°
    Perigee Argument 70.4923° 265.6033°
    Mean Anomaly (M) 289.6183° 316.4668°
    Apogee 463.360 km 472.575 km
    Perigee 462.052 km 467.973 km
    Orbit Epoch 2026-10-19T08:42:27+0000 2026-10-19T22:00:02+0000

    STARLINK-5239 & STARLINK-5507 Collision Probability (Pc) Trend

    STARLINK-5239 & STARLINK-5507 Collision Probability (Pc) TrendNot Available

    STARLINK-5239 & STARLINK-5507 Miss Distance (Miss Distance) Trend

    STARLINK-5239 & STARLINK-5507 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5239Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5507Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5239Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5507Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5239

    No nearby objects data