Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.084337E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T13:40:30+0800
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    1 Object 1

    AOE ID 53066
    NORAD ID 53066
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59725
    NORAD ID 59725
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4309 STARLINK-31820
    Time of Closest Approach 2026-10-20T07:29:22+0000
    Collision Probability (Pc) 1.084337E-6
    Conjunction Distance (km) 2.896 km
    Relative Speed (km/s) 9.465 km/s
    Conjunction Risk Parameters R (Radial): 2.762 | I (In-track): 0.68 | C (Cross-track): 0.542
    Collision Risk Index (CRI) 0.36
    X Position (km) 1979.191 1980.605
    Position Y (km) -4049.064 -4051.044
    Position Z (km) 5143.607 5145.176
    Velocity X (km/s) 1.157 7.288
    Velocity Y (km/s) -5.713 0.911
    Velocity Z (km/s) -4.93 -2.083

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4309 STARLINK-31820
    Semimajor Axis (a) 6843.665 km 6848.838 km
    Eccentricity (e) 0.000089 0.000121
    Inclination (i) 97.2857° 53.1586°
    RAAN 105.8289° 182.2529°
    Perigee Argument 67.8644° 73.1081°
    Mean Anomaly (M) 292.2693° 287.0052°
    Apogee 466.140 km 471.527 km
    Perigee 464.916 km 469.875 km
    Orbit Epoch 2026-10-18T11:04:21+0000 2026-10-18T17:25:42+0000

    STARLINK-4309 & STARLINK-31820 Collision Probability (Pc) Trend

    STARLINK-4309 & STARLINK-31820 Collision Probability (Pc) TrendNot Available

    STARLINK-4309 & STARLINK-31820 Miss Distance (Miss Distance) Trend

    STARLINK-4309 & STARLINK-31820 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4309Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31820Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4309Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31820Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4309

    No nearby objects data