Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.99982E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T13:01:45+0800
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    1 Object 1

    AOE ID 53391
    NORAD ID 53391
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 67800
    NORAD ID 67800
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4521 STARLINK-36354
    Time of Closest Approach 2026-09-06T16:25:44+0000
    Collision Probability (Pc) 9.99982E-7
    Conjunction Distance (km) 2.92 km
    Relative Speed (km/s) 8.35 km/s
    Conjunction Risk Parameters R (Radial): -2.916 | I (In-track): -0.122 | C (Cross-track): -0.077
    Collision Risk Index (CRI) 0.35
    X Position (km) 1754.39 1753.73
    Position Y (km) 4617.059 4615.155
    Position Z (km) 4735.338 4733.224
    Velocity X (km/s) -6.975 -0.596
    Velocity Y (km/s) -0.5 -5.345
    Velocity Z (km/s) 3.064 5.419

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4521 STARLINK-36354
    Semimajor Axis (a) 6848.919 km 6843.667 km
    Eccentricity (e) 0.000111 0.000093
    Inclination (i) 53.1626° 97.2865°
    RAAN 32.1081° 73.5297°
    Perigee Argument 74.7984° 104.6236°
    Mean Anomaly (M) 285.3140° 255.5109°
    Apogee 471.539 km 466.165 km
    Perigee 470.025 km 464.895 km
    Orbit Epoch 2026-09-04T18:45:15+0000 2026-09-03T22:27:40+0000

    STARLINK-4521 & STARLINK-36354 Collision Probability (Pc) Trend

    STARLINK-4521 & STARLINK-36354 Collision Probability (Pc) TrendNot Available

    STARLINK-4521 & STARLINK-36354 Miss Distance (Miss Distance) Trend

    STARLINK-4521 & STARLINK-36354 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4521Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36354Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4521Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36354Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4521

    No nearby objects data