Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.780765E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T05:38:18+0800
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    1 Object 1

    AOE ID 53570
    NORAD ID 53570
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 54164
    NORAD ID 54164
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4550 STARLINK-5278
    Time of Closest Approach 2026-09-05T08:39:05+0000
    Collision Probability (Pc) 8.780765E-7
    Conjunction Distance (km) 2.635 km
    Relative Speed (km/s) 5.159 km/s
    Conjunction Risk Parameters R (Radial): 2.625 | I (In-track): 0.221 | C (Cross-track): 0.078
    Collision Risk Index (CRI) 0.34
    X Position (km) 4102.099 4100.602
    Position Y (km) 1465.936 1465.153
    Position Z (km) 5268.257 5266.235
    Velocity X (km/s) -4.293 -0.546
    Velocity Y (km/s) 6.1 7.441
    Velocity Z (km/s) 1.641 -1.641

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4550 STARLINK-5278
    Semimajor Axis (a) 6843.448 km 6840.884 km
    Eccentricity (e) 0.000117 0.000112
    Inclination (i) 53.1597° 53.1594°
    RAAN 327.7620° 278.2070°
    Perigee Argument 101.6442° 83.6766°
    Mean Anomaly (M) 258.4692° 276.4364°
    Apogee 466.111 km 463.511 km
    Perigee 464.511 km 461.983 km
    Orbit Epoch 2026-09-02T13:04:14+0000 2026-09-02T11:24:35+0000

    STARLINK-4550 & STARLINK-5278 Collision Probability (Pc) Trend

    STARLINK-4550 & STARLINK-5278 Collision Probability (Pc) TrendNot Available

    STARLINK-4550 & STARLINK-5278 Miss Distance (Miss Distance) Trend

    STARLINK-4550 & STARLINK-5278 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4550Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5278Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4550Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5278Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4550

    No nearby objects data