Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.399952E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-02T06:23:03+0800
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    1 Object 1

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

    2 Object 2

    AOE ID 65435
    NORAD ID 65435
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2121 STARLINK-34978
    Time of Closest Approach 2026-09-02T00:36:22+0000
    Collision Probability (Pc) 1.399952E-6
    Conjunction Distance (km) 2.872 km
    Relative Speed (km/s) 14.535 km/s
    Conjunction Risk Parameters R (Radial): -2.871 | I (In-track): -0.027 | C (Cross-track): 0.039
    Collision Risk Index (CRI) 0.38
    X Position (km) 82.92 82.839
    Position Y (km) -5953.656 -5951.165
    Position Z (km) -3393.16 -3391.733
    Velocity X (km/s) 5.299 -1.164
    Velocity Y (km/s) -2.656 3.715
    Velocity Z (km/s) 4.796 -6.557

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2121 STARLINK-34978
    Semimajor Axis (a) 6848.872 km 6843.688 km
    Eccentricity (e) 0.000119 0.000177
    Inclination (i) 53.1573° 97.2841°
    RAAN 298.7959° 94.4257°
    Perigee Argument 90.5592° 88.3216°
    Mean Anomaly (M) 269.5545° 271.8229°
    Apogee 471.550 km 466.760 km
    Perigee 469.920 km 464.342 km
    Orbit Epoch 2026-09-01T10:40:43+0000 2026-09-01T11:09:55+0000

    STARLINK-2121 & STARLINK-34978 Collision Probability (Pc) Trend

    STARLINK-2121 & STARLINK-34978 Collision Probability (Pc) TrendNot Available

    STARLINK-2121 & STARLINK-34978 Miss Distance (Miss Distance) Trend

    STARLINK-2121 & STARLINK-34978 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-34978Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-34978Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2121

    No nearby objects data