Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.192416E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T17:12:28+0800
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    1 Object 1

    AOE ID 52845
    NORAD ID 52845
    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-4168 UMBRA-11
    Time of Closest Approach 2026-10-22T01:42:23+0000
    Collision Probability (Pc) 2.192416E-6
    Conjunction Distance (km) 2.009 km
    Relative Speed (km/s) 9.872 km/s
    Conjunction Risk Parameters R (Radial): -2 | I (In-track): -0.14 | C (Cross-track): 0.116
    Collision Risk Index (CRI) 0.42
    X Position (km) 4178.482 4179.793
    Position Y (km) 1374.919 1375.44
    Position Z (km) -5256.756 -5258.186
    Velocity X (km/s) -0.253 5.914
    Velocity Y (km/s) 7.414 0.335
    Velocity Z (km/s) 1.74 4.79

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4168 UMBRA-11
    Semimajor Axis (a) 6848.841 km 6849.301 km
    Eccentricity (e) 0.000136 0.000155
    Inclination (i) 53.1601° 97.4088°
    RAAN 87.8558° 7.9724°
    Perigee Argument 80.5087° 200.8234°
    Mean Anomaly (M) 279.6068° 159.2945°
    Apogee 471.635 km 472.227 km
    Perigee 469.773 km 470.101 km
    Orbit Epoch 2026-10-20T18:42:23+0000 2026-10-20T18:34:02+0000

    STARLINK-4168 & UMBRA-11 Collision Probability (Pc) Trend

    STARLINK-4168 & UMBRA-11 Collision Probability (Pc) TrendNot Available

    STARLINK-4168 & UMBRA-11 Miss Distance (Miss Distance) Trend

    STARLINK-4168 & UMBRA-11 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4168Miss 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-4168Collision Probability Trend

    Object 1 Probability TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4168

    No nearby objects data