Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.222234E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T16:12:44+0800
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    1 Object 1

    AOE ID 53537
    NORAD ID 53537
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 68258
    NORAD ID 68258
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4120 STARLINK-36890
    Time of Closest Approach 2026-09-12T13:33:46+0000
    Collision Probability (Pc) 1.222234E-6
    Conjunction Distance (km) 2.935 km
    Relative Speed (km/s) 12.033 km/s
    Conjunction Risk Parameters R (Radial): 2.838 | I (In-track): -0.45 | C (Cross-track): 0.595
    Collision Risk Index (CRI) 0.37
    X Position (km) 4849.481 4850.982
    Position Y (km) -4550.743 -4553.174
    Position Z (km) 1585.103 1585.773
    Velocity X (km/s) 2.198 4.244
    Velocity Y (km/s) 4.393 2.471
    Velocity Z (km/s) 5.851 -5.85

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4120 STARLINK-36890
    Semimajor Axis (a) 6837.869 km 6840.756 km
    Eccentricity (e) 0.000105 0.000098
    Inclination (i) 53.1608° 53.1579°
    RAAN 309.8943° 153.6431°
    Perigee Argument 85.0167° 77.0955°
    Mean Anomaly (M) 275.0956° 283.0156°
    Apogee 460.452 km 463.289 km
    Perigee 459.012 km 461.949 km
    Orbit Epoch 2026-09-11T20:18:20+0000 2026-09-11T04:01:43+0000

    STARLINK-4120 & STARLINK-36890 Collision Probability (Pc) Trend

    STARLINK-4120 & STARLINK-36890 Collision Probability (Pc) TrendNot Available

    STARLINK-4120 & STARLINK-36890 Miss Distance (Miss Distance) Trend

    STARLINK-4120 & STARLINK-36890 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4120Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36890Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4120Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36890Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4120

    No nearby objects data