Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    6.431008E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-11T23:53:45+0800
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    1 Object 1

    AOE ID 55373
    NORAD ID 55373
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 63657
    NORAD ID 63657
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5581 STARLINK-33789
    Time of Closest Approach 2026-09-13T22:04:22+0000
    Collision Probability (Pc) 6.431008E-7
    Conjunction Distance (km) 2.978 km
    Relative Speed (km/s) 3.833 km/s
    Conjunction Risk Parameters R (Radial): -1.262 | I (In-track): 2.611 | C (Cross-track): 0.678
    Collision Risk Index (CRI) 0.31
    X Position (km) -39.162 -41.851
    Position Y (km) 5181.067 5180.092
    Position Z (km) 4489.79 4488.963
    Velocity X (km/s) -7.392 -7.374
    Velocity Y (km/s) 1.201 -1.315
    Velocity Z (km/s) -1.446 1.445

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5581 STARLINK-33789
    Semimajor Axis (a) 6861.199 km 6861.181 km
    Eccentricity (e) 0.000174 0.000061
    Inclination (i) 43.0050° 43.0003°
    RAAN 353.7142° 40.2219°
    Perigee Argument 266.8533° 258.8398°
    Mean Anomaly (M) 93.2120° 101.2385°
    Apogee 484.254 km 483.460 km
    Perigee 481.870 km 482.628 km
    Orbit Epoch 2026-09-11T06:50:23+0000 2026-09-10T16:51:39+0000

    STARLINK-5581 & STARLINK-33789 Collision Probability (Pc) Trend

    STARLINK-5581 & STARLINK-33789 Collision Probability (Pc) TrendNot Available

    STARLINK-5581 & STARLINK-33789 Miss Distance (Miss Distance) Trend

    STARLINK-5581 & STARLINK-33789 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5581Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-33789Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5581Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-33789Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5581

    No nearby objects data