Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.699715E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:56:38+0800
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    1 Object 1

    AOE ID 54173
    NORAD ID 54173
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 54799
    NORAD ID 54799
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5242 STARLINK-5421
    Time of Closest Approach 2026-10-22T09:08:22+0000
    Collision Probability (Pc) 2.699715E-6
    Conjunction Distance (km) 1.388 km
    Relative Speed (km/s) 2.506 km/s
    Conjunction Risk Parameters R (Radial): -0.684 | I (In-track): 1.192 | C (Cross-track): 0.196
    Collision Risk Index (CRI) 0.44
    X Position (km) -3470.7 -3471.017
    Position Y (km) 2284.259 2283.023
    Position Z (km) 5424.435 5423.89
    Velocity X (km/s) -4.974 -3.311
    Velocity Y (km/s) -5.748 -6.843
    Velocity Z (km/s) -0.76 0.759

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5242 STARLINK-5421
    Semimajor Axis (a) 6840.863 km 6840.830 km
    Eccentricity (e) 0.000134 0.000154
    Inclination (i) 53.1592° 53.1579°
    RAAN 58.9249° 81.0291°
    Perigee Argument 88.5557° 87.2936°
    Mean Anomaly (M) 271.5598° 272.8242°
    Apogee 463.640 km 463.744 km
    Perigee 461.812 km 461.642 km
    Orbit Epoch 2026-10-19T08:48:31+0000 2026-10-19T16:41:28+0000

    STARLINK-5242 & STARLINK-5421 Collision Probability (Pc) Trend

    STARLINK-5242 & STARLINK-5421 Collision Probability (Pc) TrendNot Available

    STARLINK-5242 & STARLINK-5421 Miss Distance (Miss Distance) Trend

    STARLINK-5242 & STARLINK-5421 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5242Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5421Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5242Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5242

    No nearby objects data