Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.741551E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T09:01:17+0800
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    1 Object 1

    AOE ID 53433
    NORAD ID 53433
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 60035
    NORAD ID 60035
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4549 STARLINK-31981
    Time of Closest Approach 2026-09-11T18:28:40+0000
    Collision Probability (Pc) 7.741551E-7
    Conjunction Distance (km) 2.905 km
    Relative Speed (km/s) 5.18 km/s
    Conjunction Risk Parameters R (Radial): -2.789 | I (In-track): -0.761 | C (Cross-track): -0.274
    Collision Risk Index (CRI) 0.33
    X Position (km) 3057.814 3058.486
    Position Y (km) 3101.004 3102.839
    Position Z (km) 5262.147 5264.296
    Velocity X (km/s) -6.521 -3.716
    Velocity Y (km/s) 3.624 6.467
    Velocity Z (km/s) 1.649 -1.649

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4549 STARLINK-31981
    Semimajor Axis (a) 6837.860 km 6840.888 km
    Eccentricity (e) 0.000123 0.000130
    Inclination (i) 53.1606° 53.1600°
    RAAN 346.0138° 296.5338°
    Perigee Argument 121.6465° 70.2874°
    Mean Anomaly (M) 238.4658° 289.8269°
    Apogee 460.564 km 463.641 km
    Perigee 458.882 km 461.861 km
    Orbit Epoch 2026-09-10T14:02:08+0000 2026-09-10T10:45:16+0000

    STARLINK-4549 & STARLINK-31981 Collision Probability (Pc) Trend

    STARLINK-4549 & STARLINK-31981 Collision Probability (Pc) TrendNot Available

    STARLINK-4549 & STARLINK-31981 Miss Distance (Miss Distance) Trend

    STARLINK-4549 & STARLINK-31981 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4549Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31981Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4549Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31981Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4549

    No nearby objects data