Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.266016E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T20:22:45+0800
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    1 Object 1

    AOE ID 44350
    NORAD ID 44350
    Object Type PAYLOAD
    Country
    TW TW
    VS

    2 Object 2

    AOE ID 55919
    NORAD ID 55919
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FORMOSAT7-4/COSMIC2-4 STARLINK-5871
    Time of Closest Approach 2026-09-13T15:13:51+0000
    Collision Probability (Pc) 2.266016E-6
    Conjunction Distance (km) 1.784 km
    Relative Speed (km/s) 6.325 km/s
    Conjunction Risk Parameters R (Radial): 1.351 | I (In-track): 1.06 | C (Cross-track): -0.483
    Collision Risk Index (CRI) 0.42
    X Position (km) 6727.424 6728.838
    Position Y (km) 664.645 665.617
    Position Z (km) 1612.79 1612.307
    Velocity X (km/s) -0.095 1.381
    Velocity Y (km/s) 7.143 2.812
    Velocity Z (km/s) -2.531 -6.897

    Orbital Parameters 国际轨道数据源

    Parameter FORMOSAT7-4/COSMIC2-4 STARLINK-5871
    Semimajor Axis (a) 6954.902 km 6950.177 km
    Eccentricity (e) 0.000141 0.000312
    Inclination (i) 23.9971° 70.0000°
    RAAN 227.6906° 194.0739°
    Perigee Argument 123.8865° 272.3073°
    Mean Anomaly (M) 236.1769° 87.7729°
    Apogee 577.744 km 574.210 km
    Perigee 575.786 km 569.870 km
    Orbit Epoch 2026-09-12T04:59:15+0000 2026-09-12T06:26:58+0000

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5871 Collision Probability (Pc) Trend

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5871 Collision Probability (Pc) TrendNot Available

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5871 Miss Distance (Miss Distance) Trend

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5871 Miss Distance (Miss Distance) TrendNot Available

    FORMOSAT7-4/COSMIC2-4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5871Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FORMOSAT7-4/COSMIC2-4Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5871Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FORMOSAT7-4/COSMIC2-4

    No nearby objects data