Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.343383E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T02:35:32+0800
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    1 Object 1

    AOE ID 51785
    NORAD ID 51785
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 53054
    NORAD ID 53054
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3646 STARLINK-4339
    Time of Closest Approach 2026-10-28T16:45:08+0000
    Collision Probability (Pc) 1.343383E-6
    Conjunction Distance (km) 2.856 km
    Relative Speed (km/s) 13.35 km/s
    Conjunction Risk Parameters R (Radial): -2.802 | I (In-track): 0.262 | C (Cross-track): -0.481
    Collision Risk Index (CRI) 0.38
    X Position (km) 1364.591 1364.344
    Position Y (km) -4184.378 -4182.279
    Position Z (km) -5254.499 -5252.58
    Velocity X (km/s) 7.414 -3.207
    Velocity Y (km/s) 0.224 4.976
    Velocity Z (km/s) 1.748 -4.798

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3646 STARLINK-4339
    Semimajor Axis (a) 6848.881 km 6843.699 km
    Eccentricity (e) 0.000104 0.000144
    Inclination (i) 53.1614° 97.2849°
    RAAN 358.4980° 115.3970°
    Perigee Argument 75.2715° 91.1048°
    Mean Anomaly (M) 284.8401° 269.0359°
    Apogee 471.455 km 466.545 km
    Perigee 470.033 km 464.579 km
    Orbit Epoch 2026-10-27T05:03:12+0000 2026-10-27T05:17:43+0000

    STARLINK-3646 & STARLINK-4339 Collision Probability (Pc) Trend

    STARLINK-3646 & STARLINK-4339 Collision Probability (Pc) TrendNot Available

    STARLINK-3646 & STARLINK-4339 Miss Distance (Miss Distance) Trend

    STARLINK-3646 & STARLINK-4339 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3646Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4339Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3646Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4339Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3646

    No nearby objects data