Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.851862E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T02:16:50+0800
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    1 Object 1

    AOE ID 53836
    NORAD ID 53836
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 67464
    NORAD ID 67464
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4778 STARLINK-36421
    Time of Closest Approach 2026-09-06T13:04:06+0000
    Collision Probability (Pc) 9.851862E-7
    Conjunction Distance (km) 2.852 km
    Relative Speed (km/s) 7.716 km/s
    Conjunction Risk Parameters R (Radial): -2.847 | I (In-track): -0.131 | C (Cross-track): -0.089
    Collision Risk Index (CRI) 0.35
    X Position (km) 4239.47 4237.605
    Position Y (km) -3289.27 -3288.023
    Position Z (km) 4271.281 4269.52
    Velocity X (km/s) 5.998 3.039
    Velocity Y (km/s) 2.741 6.669
    Velocity Z (km/s) -3.831 2.115

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4778 STARLINK-36421
    Semimajor Axis (a) 6864.371 km 6861.173 km
    Eccentricity (e) 0.000199 0.000114
    Inclination (i) 53.1788° 42.9986°
    RAAN 189.4944° 277.2505°
    Perigee Argument 83.1754° 281.0345°
    Mean Anomaly (M) 276.9473° 79.0378°
    Apogee 487.604 km 483.821 km
    Perigee 484.864 km 482.251 km
    Orbit Epoch 2026-09-04T05:30:37+0000 2026-09-04T02:43:08+0000

    STARLINK-4778 & STARLINK-36421 Collision Probability (Pc) Trend

    STARLINK-4778 & STARLINK-36421 Collision Probability (Pc) TrendNot Available

    STARLINK-4778 & STARLINK-36421 Miss Distance (Miss Distance) Trend

    STARLINK-4778 & STARLINK-36421 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4778Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36421Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4778Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36421Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4778

    No nearby objects data