Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    8.613409E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T22:20:46+0800
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    1 Object 1

    AOE ID 47730
    NORAD ID 47730
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 53658
    NORAD ID 53658
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-2140 STARLINK-4452
    Time of Closest Approach 2026-09-04T16:22:23+0000
    Collision Probability (Pc) 8.613409E-7
    Conjunction Distance (km) 2.887 km
    Relative Speed (km/s) 6.221 km/s
    Conjunction Risk Parameters R (Radial): 2.827 | I (In-track): 0.534 | C (Cross-track): 0.239
    Collision Risk Index (CRI) 0.34
    X Position (km) 3331.872 3330.469
    Position Y (km) -5410.345 -5408.377
    Position Z (km) -2565.777 -2564.198
    Velocity X (km/s) 3.058 -2.368
    Velocity Y (km/s) 4.437 1.857
    Velocity Z (km/s) -5.397 -7.009

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2140 STARLINK-4452
    Semimajor Axis (a) 6848.859 km 6843.704 km
    Eccentricity (e) 0.000123 0.000164
    Inclination (i) 53.1580° 97.2849°
    RAAN 105.6274° 124.0344°
    Perigee Argument 92.7721° 88.4724°
    Mean Anomaly (M) 350.2750° 271.6707°
    Apogee 471.563 km 466.688 km
    Perigee 469.881 km 464.446 km
    Orbit Epoch 2026-09-04T08:00:02+0000 2026-09-04T02:57:57+0000

    STARLINK-2140 & STARLINK-4452 Collision Probability (Pc) Trend

    STARLINK-2140 & STARLINK-4452 Collision Probability (Pc) TrendNot Available

    STARLINK-2140 & STARLINK-4452 Miss Distance (Miss Distance) Trend

    STARLINK-2140 & STARLINK-4452 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2140Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4452Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-2140Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4452Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2140

    No nearby objects data