Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.109806E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T21:11:00+0800
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    1 Object 1

    AOE ID 58528
    NORAD ID 58528
    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-31004 UMBRA-11
    Time of Closest Approach 2026-09-06T11:36:45+0000
    Collision Probability (Pc) 3.109806E-6
    Conjunction Distance (km) 1.918 km
    Relative Speed (km/s) 14.202 km/s
    Conjunction Risk Parameters R (Radial): -1.359 | I (In-track): 0.503 | C (Cross-track): -1.256
    Collision Risk Index (CRI) 0.45
    X Position (km) -5076.071 -5075.649
    Position Y (km) 4073.389 4071.527
    Position Z (km) -2176.154 -2176.338
    Velocity X (km/s) -4.877 2.511
    Velocity Y (km/s) -3.622 -0.686
    Velocity Z (km/s) 4.605 -7.163

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31004 UMBRA-11
    Semimajor Axis (a) 6861.187 km 6854.876 km
    Eccentricity (e) 0.000118 0.000286
    Inclination (i) 43.0031° 97.4135°
    RAAN 169.6387° 322.4851°
    Perigee Argument 267.3961° 72.7455°
    Mean Anomaly (M) 92.6756° 287.4098°
    Apogee 483.857 km 478.700 km
    Perigee 482.243 km 474.778 km
    Orbit Epoch 2026-09-05T04:20:54+0000 2026-09-05T04:55:08+0000

    STARLINK-31004 & UMBRA-11 Collision Probability (Pc) Trend

    STARLINK-31004 & UMBRA-11 Collision Probability (Pc) TrendNot Available

    STARLINK-31004 & UMBRA-11 Miss Distance (Miss Distance) Trend

    STARLINK-31004 & UMBRA-11 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31004Miss 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-31004Collision Probability Trend

    Object 1 Probability TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31004

    No nearby objects data