Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.01296E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T09:09:57+0800
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    1 Object 1

    AOE ID 52855
    NORAD ID 52855
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 64844
    NORAD ID 64844
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4209 STARLINK-34709
    Time of Closest Approach 2026-09-12T17:26:20+0000
    Collision Probability (Pc) 4.01296E-6
    Conjunction Distance (km) 1.753 km
    Relative Speed (km/s) 14.24 km/s
    Conjunction Risk Parameters R (Radial): 1.704 | I (In-track): 0.148 | C (Cross-track): 0.386
    Collision Risk Index (CRI) 0.47
    X Position (km) 2000.494 1999.616
    Position Y (km) -4816.36 -4815.172
    Position Z (km) 4430.102 4429.159
    Velocity X (km/s) 4.376 0.7
    Velocity Y (km/s) 5.126 -4.995
    Velocity Z (km/s) 3.587 -5.73

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4209 STARLINK-34709
    Semimajor Axis (a) 6848.872 km 6843.677 km
    Eccentricity (e) 0.000126 0.000193
    Inclination (i) 53.1591° 97.2836°
    RAAN 264.2865° 104.1671°
    Perigee Argument 83.5140° 19.3509°
    Mean Anomaly (M) 276.6005° 340.7807°
    Apogee 471.600 km 466.864 km
    Perigee 469.870 km 464.216 km
    Orbit Epoch 2026-09-10T07:15:43+0000 2026-09-10T13:09:13+0000

    STARLINK-4209 & STARLINK-34709 Collision Probability (Pc) Trend

    STARLINK-4209 & STARLINK-34709 Collision Probability (Pc) TrendNot Available

    STARLINK-4209 & STARLINK-34709 Miss Distance (Miss Distance) Trend

    STARLINK-4209 & STARLINK-34709 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4209Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34709Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4209Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34709Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4209

    No nearby objects data