Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.565899E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T16:29:02+0800
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    1 Object 1

    AOE ID 46073
    NORAD ID 46073
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 47399
    NORAD ID 47399
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-1542 STARLINK-2121
    Time of Closest Approach 2026-09-15T12:38:10+0000
    Collision Probability (Pc) 1.565899E-6
    Conjunction Distance (km) 2.106 km
    Relative Speed (km/s) 6.827 km/s
    Conjunction Risk Parameters R (Radial): -0.311 | I (In-track): 1.859 | C (Cross-track): 0.939
    Collision Risk Index (CRI) 0.39
    X Position (km) -4593.312 -4593.209
    Position Y (km) 221.944 219.855
    Position Z (km) -5082.746 -5082.511
    Velocity X (km/s) 2.2 -2.854
    Velocity Y (km/s) -6.927 -6.684
    Velocity Z (km/s) -2.292 2.291

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1542 STARLINK-2121
    Semimajor Axis (a) 6848.872 km 6848.754 km
    Eccentricity (e) 0.000132 0.000125
    Inclination (i) 53.1598° 53.1565°
    RAAN 315.1581° 247.4550°
    Perigee Argument 71.2062° 100.8126°
    Mean Anomaly (M) 288.9082° 259.3016°
    Apogee 471.639 km 471.472 km
    Perigee 469.831 km 469.762 km
    Orbit Epoch 2026-09-12T13:05:19+0000 2026-09-12T11:20:01+0000

    STARLINK-1542 & STARLINK-2121 Collision Probability (Pc) Trend

    STARLINK-1542 & STARLINK-2121 Collision Probability (Pc) TrendNot Available

    STARLINK-1542 & STARLINK-2121 Miss Distance (Miss Distance) Trend

    STARLINK-1542 & STARLINK-2121 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1542Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-2121Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1542Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-2121Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1542

    No nearby objects data