Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    5.195052E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T09:39:08+0800
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    1 Object 1

    AOE ID 50830
    NORAD ID 50830
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53165
    NORAD ID 53165
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3278 STARLINK-4090
    Time of Closest Approach 2026-09-04T17:33:18+0000
    Collision Probability (Pc) 5.195052E-4
    Conjunction Distance (km) 0.135 km
    Relative Speed (km/s) 0.594 km/s
    Conjunction Risk Parameters R (Radial): 0.027 | I (In-track): 0.132 | C (Cross-track): -0.004
    Collision Risk Index (CRI) 0.89
    X Position (km) -4043.735 -4043.773
    Position Y (km) 690.797 690.67
    Position Z (km) 5465.612 5465.633
    Velocity X (km/s) -1.052 -1.521
    Velocity Y (km/s) -7.563 -7.483
    Velocity Z (km/s) 0.177 -0.179

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3278 STARLINK-4090
    Semimajor Axis (a) 6840.978 km 6842.825 km
    Eccentricity (e) 0.000010 0.000174
    Inclination (i) 53.1607° 53.1616°
    RAAN 93.1957° 87.1504°
    Perigee Argument 170.1595° 94.9550°
    Mean Anomaly (M) 189.9410° 109.0580°
    Apogee 462.910 km 465.878 km
    Perigee 462.772 km 463.498 km
    Orbit Epoch 2026-09-02T13:34:58+0000 2026-09-02T16:00:02+0000

    STARLINK-3278 & STARLINK-4090 Collision Probability (Pc) Trend

    STARLINK-3278 & STARLINK-4090 Collision Probability (Pc) TrendNot Available

    STARLINK-3278 & STARLINK-4090 Miss Distance (Miss Distance) Trend

    STARLINK-3278 & STARLINK-4090 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3278Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4090Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3278Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4090Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3278

    No nearby objects data