Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.191774E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T10:58:04+0800
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    1 Object 1

    AOE ID 53780
    NORAD ID 53780
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 56874
    NORAD ID 56874
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4678 LONGJIANG 3
    Time of Closest Approach 2026-09-05T09:39:31+0000
    Collision Probability (Pc) 1.191774E-6
    Conjunction Distance (km) 2.974 km
    Relative Speed (km/s) 11.839 km/s
    Conjunction Risk Parameters R (Radial): -2.972 | I (In-track): 0.053 | C (Cross-track): 0.057
    Collision Risk Index (CRI) 0.37
    X Position (km) -6801.778 -6804.731
    Position Y (km) 74.185 74.294
    Position Z (km) -765.298 -765.628
    Velocity X (km/s) -0.724 0.58
    Velocity Y (km/s) -4.596 -5.031
    Velocity Z (km/s) 6.052 -5.706

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4678 LONGJIANG 3
    Semimajor Axis (a) 6843.355 km 6842.649 km
    Eccentricity (e) 0.000117 0.000661
    Inclination (i) 53.1613° 49.1052°
    RAAN 199.4240° 7.9150°
    Perigee Argument 76.2176° 13.4313°
    Mean Anomaly (M) 283.8956° 346.6808°
    Apogee 466.019 km 469.035 km
    Perigee 464.417 km 459.989 km
    Orbit Epoch 2026-09-02T03:29:17+0000 2026-09-02T15:10:32+0000

    STARLINK-4678 & LONGJIANG 3 Collision Probability (Pc) Trend

    STARLINK-4678 & LONGJIANG 3 Collision Probability (Pc) TrendNot Available

    STARLINK-4678 & LONGJIANG 3 Miss Distance (Miss Distance) Trend

    STARLINK-4678 & LONGJIANG 3 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4678Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    LONGJIANG 3Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4678Collision Probability Trend

    Object 1 Probability TrendNot Available

    LONGJIANG 3Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4678

    No nearby objects data