Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.118387E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T07:16:55+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 55632
    NORAD ID 55632
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter FORMOSAT7-4/COSMIC2-4 STARLINK-5546
    Time of Closest Approach 2026-09-06T10:41:02+0000
    Collision Probability (Pc) 3.118387E-5
    Conjunction Distance (km) 0.902 km
    Relative Speed (km/s) 10.934 km/s
    Conjunction Risk Parameters R (Radial): -0.898 | I (In-track): 0.058 | C (Cross-track): 0.046
    Collision Risk Index (CRI) 0.65
    X Position (km) -1860.285 -1860.113
    Position Y (km) 6625.555 6624.682
    Position Z (km) -1002.492 -1002.344
    Velocity X (km/s) -6.619 -2.794
    Velocity Y (km/s) -2.291 0.274
    Velocity Z (km/s) -2.882 7.033

    Orbital Parameters 国际轨道数据源

    Parameter FORMOSAT7-4/COSMIC2-4 STARLINK-5546
    Semimajor Axis (a) 6954.977 km 6950.231 km
    Eccentricity (e) 0.000133 0.000204
    Inclination (i) 23.9978° 70.0010°
    RAAN 280.3002° 114.7775°
    Perigee Argument 51.6006° 272.6381°
    Mean Anomaly (M) 308.4614° 87.4545°
    Apogee 577.766 km 573.510 km
    Perigee 575.914 km 570.678 km
    Orbit Epoch 2026-09-04T09:47:37+0000 2026-09-04T01:02:32+0000

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5546 Collision Probability (Pc) Trend

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5546 Collision Probability (Pc) TrendNot Available

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5546 Miss Distance (Miss Distance) Trend

    FORMOSAT7-4/COSMIC2-4 & STARLINK-5546 Miss Distance (Miss Distance) TrendNot Available

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

    Object 1 Miss Distance TrendNot Available

    STARLINK-5546Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    FORMOSAT7-4/COSMIC2-4Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5546Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with FORMOSAT7-4/COSMIC2-4

    No nearby objects data