Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.315069E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T13:35:26+0800
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    1 Object 1

    AOE ID 49453
    NORAD ID 49453
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53210
    NORAD ID 53210
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3129 STARLINK-4427
    Time of Closest Approach 2026-10-20T16:24:59+0000
    Collision Probability (Pc) 1.315069E-6
    Conjunction Distance (km) 2.627 km
    Relative Speed (km/s) 10.431 km/s
    Conjunction Risk Parameters R (Radial): -2.479 | I (In-track): -0.635 | C (Cross-track): -0.588
    Collision Risk Index (CRI) 0.37
    X Position (km) 3971.75 3970.684
    Position Y (km) -1539.797 -1539.872
    Position Z (km) 5352.814 5350.414
    Velocity X (km/s) 1.162 -6.02
    Velocity Y (km/s) 7.437 0.667
    Velocity Z (km/s) 1.274 4.648

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3129 STARLINK-4427
    Semimajor Axis (a) 6848.845 km 6843.707 km
    Eccentricity (e) 0.000146 0.000115
    Inclination (i) 53.1597° 97.2847°
    RAAN 274.5463° 347.2702°
    Perigee Argument 77.6415° 101.5258°
    Mean Anomaly (M) 282.4749° 258.6114°
    Apogee 471.705 km 466.359 km
    Perigee 469.711 km 464.781 km
    Orbit Epoch 2026-10-19T08:45:28+0000 2026-10-19T21:23:48+0000

    STARLINK-3129 & STARLINK-4427 Collision Probability (Pc) Trend

    STARLINK-3129 & STARLINK-4427 Collision Probability (Pc) TrendNot Available

    STARLINK-3129 & STARLINK-4427 Miss Distance (Miss Distance) Trend

    STARLINK-3129 & STARLINK-4427 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3129Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4427Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3129Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4427Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3129

    No nearby objects data