Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.634725E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T20:50:16+0800
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    1 Object 1

    AOE ID 48639
    NORAD ID 48639
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53576
    NORAD ID 53576
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2739 STARLINK-4581
    Time of Closest Approach 2026-10-20T19:43:07+0000
    Collision Probability (Pc) 1.634725E-6
    Conjunction Distance (km) 1.806 km
    Relative Speed (km/s) 3.912 km/s
    Conjunction Risk Parameters R (Radial): -1.195 | I (In-track): 1.308 | C (Cross-track): -0.346
    Collision Risk Index (CRI) 0.39
    X Position (km) 3379.831 3381.241
    Position Y (km) 2581.895 2581.27
    Position Z (km) -5373.676 -5374.614
    Velocity X (km/s) -5.688 -3.251
    Velocity Y (km/s) 4.923 6.784
    Velocity Z (km/s) -1.215 1.214

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2739 STARLINK-4581
    Semimajor Axis (a) 6848.581 km 6848.856 km
    Eccentricity (e) 0.000190 0.000105
    Inclination (i) 53.1589° 53.1589°
    RAAN 153.5794° 117.7180°
    Perigee Argument 141.9773° 86.1562°
    Mean Anomaly (M) 218.1363° 273.9559°
    Apogee 471.745 km 471.438 km
    Perigee 469.143 km 470.000 km
    Orbit Epoch 2026-10-19T05:00:57+0000 2026-10-18T21:04:50+0000

    STARLINK-2739 & STARLINK-4581 Collision Probability (Pc) Trend

    STARLINK-2739 & STARLINK-4581 Collision Probability (Pc) TrendNot Available

    STARLINK-2739 & STARLINK-4581 Miss Distance (Miss Distance) Trend

    STARLINK-2739 & STARLINK-4581 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2739Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4581Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2739Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4581Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2739

    No nearby objects data