Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.452701E-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 2026-10-30T07:41:54+0000
    Collision Probability (Pc) 1.452701E-6
    Conjunction Distance (km) 2.591 km
    Relative Speed (km/s) 11.908 km/s
    Conjunction Risk Parameters R (Radial): -0.857 | I (In-track): -1.533 | C (Cross-track): -1.903
    Collision Risk Index (CRI) 0.38
    X Position (km) -4699.723 -4700.843
    Position Y (km) -4586.407 -4584.085
    Position Z (km) -1953.836 -1953.585
    Velocity X (km/s) 4.543 2.119
    Velocity Y (km/s) -2.232 -4.598
    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