Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.229581E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T07:35:51+0800
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    1 Object 1

    AOE ID 52272
    NORAD ID 52272
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53048
    NORAD ID 53048
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3781 STARLINK-4355
    Time of Closest Approach 2026-09-13T23:30:52+0000
    Collision Probability (Pc) 1.229581E-6
    Conjunction Distance (km) 2.914 km
    Relative Speed (km/s) 11.975 km/s
    Conjunction Risk Parameters R (Radial): -2.4 | I (In-track): 1.025 | C (Cross-track): -1.294
    Collision Risk Index (CRI) 0.37
    X Position (km) -1868.222 -1866.166
    Position Y (km) -3663.868 -3662.159
    Position Z (km) -5483.447 -5482.289
    Velocity X (km/s) 6.72 1.27
    Velocity Y (km/s) -3.59 6.039
    Velocity Z (km/s) 0.109 -4.469

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3781 STARLINK-4355
    Semimajor Axis (a) 6848.882 km 6843.690 km
    Eccentricity (e) 0.000098 0.000116
    Inclination (i) 53.1610° 97.2845°
    RAAN 342.7472° 70.5418°
    Perigee Argument 81.5627° 80.2497°
    Mean Anomaly (M) 278.5485° 353.2746°
    Apogee 471.418 km 466.345 km
    Perigee 470.072 km 464.761 km
    Orbit Epoch 2026-09-11T12:23:38+0000 2026-09-11T16:00:02+0000

    STARLINK-3781 & STARLINK-4355 Collision Probability (Pc) Trend

    STARLINK-3781 & STARLINK-4355 Collision Probability (Pc) TrendNot Available

    STARLINK-3781 & STARLINK-4355 Miss Distance (Miss Distance) Trend

    STARLINK-3781 & STARLINK-4355 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3781Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4355Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3781Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4355Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3781

    No nearby objects data