Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.353418E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T09:32:51+0800
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    1 Object 1

    AOE ID 49427
    NORAD ID 49427
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53488
    NORAD ID 53488
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3131 STARLINK-4421
    Time of Closest Approach 2026-10-20T04:18:58+0000
    Collision Probability (Pc) 1.353418E-6
    Conjunction Distance (km) 2.851 km
    Relative Speed (km/s) 13.473 km/s
    Conjunction Risk Parameters R (Radial): 2.7 | I (In-track): -0.436 | C (Cross-track): -0.802
    Collision Risk Index (CRI) 0.38
    X Position (km) -3325.444 -3323.335
    Position Y (km) -2982.76 -2981.811
    Position Z (km) -5198.726 -5197.059
    Velocity X (km/s) 3 3.229
    Velocity Y (km/s) -6.73 4.889
    Velocity Z (km/s) 1.943 -4.873

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3131 STARLINK-4421
    Semimajor Axis (a) 6848.908 km 6843.671 km
    Eccentricity (e) 0.000111 0.000171
    Inclination (i) 53.1599° 97.2813°
    RAAN 289.5689° 48.6174°
    Perigee Argument 95.3690° 83.7365°
    Mean Anomaly (M) 264.7437° 276.4073°
    Apogee 471.529 km 466.704 km
    Perigee 470.013 km 464.364 km
    Orbit Epoch 2026-10-18T16:36:33+0000 2026-10-18T07:27:58+0000

    STARLINK-3131 & STARLINK-4421 Collision Probability (Pc) Trend

    STARLINK-3131 & STARLINK-4421 Collision Probability (Pc) TrendNot Available

    STARLINK-3131 & STARLINK-4421 Miss Distance (Miss Distance) Trend

    STARLINK-3131 & STARLINK-4421 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3131Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4421Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3131Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3131

    No nearby objects data