Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.467496E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T21:14:07+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 68753
    NORAD ID 68753
    Object Type ROCKET BODY
    Country
    CIS CIS

    Conjunction Constraints

    Parameter STARLINK-5561 SL-4 R/B
    Time of Closest Approach 2026-09-12T15:19:46+0000
    Collision Probability (Pc) 1.467496E-6
    Conjunction Distance (km) 2.806 km
    Relative Speed (km/s) 14.922 km/s
    Conjunction Risk Parameters R (Radial): -0.843 | I (In-track): 0.48 | C (Cross-track): 2.633
    Collision Risk Index (CRI) 0.38
    X Position (km) -2316.077 -2318.178
    Position Y (km) -4613.704 -4611.925
    Position Z (km) 4591.056 4590.514
    Velocity X (km/s) 1.084 -3.52
    Velocity Y (km/s) 5.032 -3.75
    Velocity Z (km/s) 5.588 -5.564

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5561 SL-4 R/B
    Semimajor Axis (a) 6912.656 km 6874.221 km
    Eccentricity (e) 0.000164 0.006109
    Inclination (i) 97.2845° 98.2841°
    RAAN 249.2676° 55.1886°
    Perigee Argument 91.1683° 291.2769°
    Mean Anomaly (M) 79.9242° 68.1949°
    Apogee 535.652 km 538.078 km
    Perigee 533.386 km 454.090 km
    Orbit Epoch 2026-09-12T00:00:02+0000 2026-09-12T00:32:00+0000

    STARLINK-5561 & SL-4 R/B Collision Probability (Pc) Trend

    STARLINK-5561 & SL-4 R/B Collision Probability (Pc) TrendNot Available

    STARLINK-5561 & SL-4 R/B Miss Distance (Miss Distance) Trend

    STARLINK-5561 & SL-4 R/B Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5561Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    SL-4 R/BMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5561Collision Probability Trend

    Object 1 Probability TrendNot Available

    SL-4 R/BCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5561

    No nearby objects data