Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.932522E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-12T00:36:53+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 52472
    NORAD ID 52472
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58040
    NORAD ID 58040
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-3881 STARLINK-30555
    Time of Closest Approach 2026-09-11T18:02:48+0000
    Collision Probability (Pc) 9.932522E-7
    Conjunction Distance (km) 2.928 km
    Relative Speed (km/s) 8.298 km/s
    Conjunction Risk Parameters R (Radial): -2.926 | I (In-track): -0.074 | C (Cross-track): 0.048
    Collision Risk Index (CRI) 0.35
    X Position (km) -1870.142 -1869.424
    Position Y (km) -4524.005 -4522.037
    Position Z (km) -4789.57 -4787.524
    Velocity X (km/s) 4.804 7.021
    Velocity Y (km/s) -5.124 0.236
    Velocity Z (km/s) 2.966 -2.967

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3881 STARLINK-30555
    Semimajor Axis (a) 6843.388 km 6840.806 km
    Eccentricity (e) 0.000115 0.000114
    Inclination (i) 53.1604° 53.1606°
    RAAN 297.7140° 25.4356°
    Perigee Argument 90.8325° 121.7271°
    Mean Anomaly (M) 269.2809° 238.3843°
    Apogee 466.040 km 463.452 km
    Perigee 464.462 km 461.886 km
    Orbit Epoch 2026-09-11T02:40:14+0000 2026-09-10T15:59:22+0000

    STARLINK-3881 & STARLINK-30555 Collision Probability (Pc) Trend

    STARLINK-3881 & STARLINK-30555 Collision Probability (Pc) TrendNot Available

    STARLINK-3881 & STARLINK-30555 Miss Distance (Miss Distance) Trend

    STARLINK-3881 & STARLINK-30555 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3881Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-30555Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3881Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-30555Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3881

    No nearby objects data