Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    4.829415E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T00:19:10+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 50831
    NORAD ID 50831
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53189
    NORAD ID 53189
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3299 STARLINK-4391
    Time of Closest Approach 2026-09-13T15:28:19+0000
    Collision Probability (Pc) 4.829415E-6
    Conjunction Distance (km) 1.549 km
    Relative Speed (km/s) 10.629 km/s
    Conjunction Risk Parameters R (Radial): -0.298 | I (In-track): -1.091 | C (Cross-track): -1.057
    Collision Risk Index (CRI) 0.49
    X Position (km) -3319.193 -3320.634
    Position Y (km) 2605.885 2605.986
    Position Z (km) 5378.55 5377.991
    Velocity X (km/s) -5.699 -3.66
    Velocity Y (km/s) -4.961 4.867
    Velocity Z (km/s) -1.11 -4.606

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3299 STARLINK-4391
    Semimajor Axis (a) 6843.940 km 6844.005 km
    Eccentricity (e) 0.000057 0.000151
    Inclination (i) 53.1596° 97.2870°
    RAAN 48.5013° 310.2132°
    Perigee Argument 2.2657° 90.1757°
    Mean Anomaly (M) 357.8347° 244.7145°
    Apogee 466.192 km 466.899 km
    Perigee 465.414 km 464.837 km
    Orbit Epoch 2026-09-10T16:38:46+0000 2026-09-11T08:00:04+0000

    STARLINK-3299 & STARLINK-4391 Collision Probability (Pc) Trend

    STARLINK-3299 & STARLINK-4391 Collision Probability (Pc) TrendNot Available

    STARLINK-3299 & STARLINK-4391 Miss Distance (Miss Distance) Trend

    STARLINK-3299 & STARLINK-4391 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3299Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4391Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3299Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4391Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3299

    No nearby objects data