Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.620617E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-08-27T13:49:04+0800
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    1 Object 1

    AOE ID 53719
    NORAD ID 53719
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 69146
    NORAD ID 69146
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4644 STARLINK-37639
    Time of Closest Approach 2026-08-27T18:57:03+0000
    Collision Probability (Pc) 1.620617E-6
    Conjunction Distance (km) 2.421 km
    Relative Speed (km/s) 11.717 km/s
    Conjunction Risk Parameters R (Radial): -2.137 | I (In-track): -0.735 | C (Cross-track): -0.865
    Collision Risk Index (CRI) 0.39
    X Position (km) -353.404 -352.888
    Position Y (km) -4087.455 -4089.512
    Position Z (km) 5467.414 5468.583
    Velocity X (km/s) 7.586 -2.12
    Velocity Y (km/s) -0.869 -5.814
    Velocity Z (km/s) -0.159 -4.472

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4644 STARLINK-37639
    Semimajor Axis (a) 6843.366 km 6843.664 km
    Eccentricity (e) 0.000099 0.000246
    Inclination (i) 53.1610° 97.2834°
    RAAN 180.2590° 73.9486°
    Perigee Argument 95.9135° 72.7450°
    Mean Anomaly (M) 264.1980° 287.4062°
    Apogee 465.908 km 467.211 km
    Perigee 464.550 km 463.843 km
    Orbit Epoch 2026-08-26T03:27:04+0000 2026-08-26T11:04:52+0000

    STARLINK-4644 & STARLINK-37639 Collision Probability (Pc) Trend

    STARLINK-4644 & STARLINK-37639 Collision Probability (Pc) TrendNot Available

    STARLINK-4644 & STARLINK-37639 Miss Distance (Miss Distance) Trend

    STARLINK-4644 & STARLINK-37639 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4644Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-37639Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4644Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-37639Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4644

    No nearby objects data