Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.941733E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T22:07:33+0800
    View CDM
    Download CDM 1.0

    1 Object 1

    AOE ID 57851
    NORAD ID 57851
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66748
    NORAD ID 66748
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-30405 UMBRA-11
    Time of Closest Approach 2026-10-20T05:25:12+0000
    Collision Probability (Pc) 1.941733E-6
    Conjunction Distance (km) 2 km
    Relative Speed (km/s) 7.969 km/s
    Conjunction Risk Parameters R (Radial): -0.916 | I (In-track): 1.513 | C (Cross-track): 0.934
    Collision Risk Index (CRI) 0.41
    X Position (km) -5136.822 -5138.611
    Position Y (km) -74.994 -74.36
    Position Z (km) -4537.338 -4536.708
    Velocity X (km/s) 3.113 4.947
    Velocity Y (km/s) -6.053 1.382
    Velocity Z (km/s) -3.429 -5.63

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30405 UMBRA-11
    Semimajor Axis (a) 6848.804 km 6849.550 km
    Eccentricity (e) 0.000185 0.000137
    Inclination (i) 53.1599° 97.4084°
    RAAN 324.4332° 6.1441°
    Perigee Argument 91.6883° 206.3452°
    Mean Anomaly (M) 268.4331° 153.7720°
    Apogee 471.937 km 472.351 km
    Perigee 469.397 km 470.475 km
    Orbit Epoch 2026-10-19T03:20:22+0000 2026-10-18T22:39:39+0000

    STARLINK-30405 & UMBRA-11 Collision Probability (Pc) Trend

    STARLINK-30405 & UMBRA-11 Collision Probability (Pc) TrendNot Available

    STARLINK-30405 & UMBRA-11 Miss Distance (Miss Distance) Trend

    STARLINK-30405 & UMBRA-11 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30405Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    UMBRA-11Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-30405Collision Probability Trend

    Object 1 Probability TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30405

    No nearby objects data