Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.862684E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T21:21:16+0800
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    1 Object 1

    AOE ID 52855
    NORAD ID 52855
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53984
    NORAD ID 53984
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4209 STARLINK-5142
    Time of Closest Approach 2026-10-30T02:13:05+0000
    Collision Probability (Pc) 1.862684E-6
    Conjunction Distance (km) 2.269 km
    Relative Speed (km/s) 11.915 km/s
    Conjunction Risk Parameters R (Radial): -1.72 | I (In-track): 0.931 | C (Cross-track): -1.149
    Collision Risk Index (CRI) 0.4
    X Position (km) 4613.25 4611.038
    Position Y (km) 4669.539 4669.404
    Position Z (km) 1950.52 1950.037
    Velocity X (km/s) -4.593 -2.199
    Velocity Y (km/s) 2.141 4.567
    Velocity Z (km/s) 5.708 -5.708

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4209 STARLINK-5142
    Semimajor Axis (a) 6848.916 km 6847.943 km
    Eccentricity (e) 0.000118 0.000048
    Inclination (i) 53.1607° 53.1598°
    RAAN 44.0397° 250.5256°
    Perigee Argument 128.2350° 77.9536°
    Mean Anomaly (M) 231.8758° 282.1519°
    Apogee 471.588 km 470.137 km
    Perigee 469.970 km 469.475 km
    Orbit Epoch 2026-10-27T14:37:08+0000 2026-10-27T10:54:07+0000

    STARLINK-4209 & STARLINK-5142 Collision Probability (Pc) Trend

    STARLINK-4209 & STARLINK-5142 Collision Probability (Pc) TrendNot Available

    STARLINK-4209 & STARLINK-5142 Miss Distance (Miss Distance) Trend

    STARLINK-4209 & STARLINK-5142 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4209Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5142Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4209Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5142Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4209

    No nearby objects data