Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.563582E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T17:12:26+0800
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    1 Object 1

    AOE ID 53174
    NORAD ID 53174
    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-4205 UMBRA-11
    Time of Closest Approach 2026-10-23T00:47:50+0000
    Collision Probability (Pc) 1.563582E-6
    Conjunction Distance (km) 2.66 km
    Relative Speed (km/s) 14.515 km/s
    Conjunction Risk Parameters R (Radial): -0.704 | I (In-track): 0.79 | C (Cross-track): 2.44
    Collision Risk Index (CRI) 0.39
    X Position (km) -5849.125 -5850.543
    Position Y (km) -592.489 -590.328
    Position Z (km) -3521.985 -3521.362
    Velocity X (km/s) -2.248 3.734
    Velocity Y (km/s) -5.584 1.528
    Velocity Z (km/s) 4.68 -6.469

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4205 UMBRA-11
    Semimajor Axis (a) 6848.862 km 6849.301 km
    Eccentricity (e) 0.000106 0.000155
    Inclination (i) 53.1598° 97.4088°
    RAAN 225.8088° 7.9724°
    Perigee Argument 91.4963° 200.8234°
    Mean Anomaly (M) 268.6160° 159.2945°
    Apogee 471.454 km 472.227 km
    Perigee 469.996 km 470.101 km
    Orbit Epoch 2026-10-20T04:04:03+0000 2026-10-20T18:34:02+0000

    STARLINK-4205 & UMBRA-11 Collision Probability (Pc) Trend

    STARLINK-4205 & UMBRA-11 Collision Probability (Pc) TrendNot Available

    STARLINK-4205 & UMBRA-11 Miss Distance (Miss Distance) Trend

    STARLINK-4205 & UMBRA-11 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4205Miss 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-4205Collision Probability Trend

    Object 1 Probability TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4205

    No nearby objects data