Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.055131E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T21:14:10+0800
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    1 Object 1

    AOE ID 56337
    NORAD ID 56337
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 56353
    NORAD ID 56353
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-5561 STARLINK-5874
    Time of Closest Approach 2026-09-16T06:47:13+0000
    Collision Probability (Pc) 5.055131E-7
    Conjunction Distance (km) 1.743 km
    Relative Speed (km/s) 0.002 km/s
    Conjunction Risk Parameters R (Radial): -1.735 | I (In-track): 0.142 | C (Cross-track): -0.041
    Collision Risk Index (CRI) 0.29
    X Position (km) -1977.151 -1976.597
    Position Y (km) -4403.122 -4401.927
    Position Z (km) 4941.55 4940.411
    Velocity X (km/s) 0.934 0.934
    Velocity Y (km/s) 5.447 5.447
    Velocity Z (km/s) 5.213 5.214

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5561 STARLINK-5874
    Semimajor Axis (a) 6912.656 km 6911.969 km
    Eccentricity (e) 0.000164 0.000210
    Inclination (i) 97.2845° 97.2850°
    RAAN 249.2676° 249.4895°
    Perigee Argument 91.1683° 73.8050°
    Mean Anomaly (M) 79.9242° 286.3411°
    Apogee 535.652 km 535.281 km
    Perigee 533.386 km 532.383 km
    Orbit Epoch 2026-09-12T00:00:02+0000 2026-09-12T05:37:32+0000

    STARLINK-5561 & STARLINK-5874 Collision Probability (Pc) Trend

    STARLINK-5561 & STARLINK-5874 Collision Probability (Pc) TrendNot Available

    STARLINK-5561 & STARLINK-5874 Miss Distance (Miss Distance) Trend

    STARLINK-5561 & STARLINK-5874 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5561Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5874Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5561Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5874Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5561

    No nearby objects data