Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.535866E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T18:25:52+0800
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    1 Object 1

    AOE ID 58445
    NORAD ID 58445
    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-30961 UMBRA-11
    Time of Closest Approach 2026-09-05T22:02:32+0000
    Collision Probability (Pc) 1.535866E-6
    Conjunction Distance (km) 2.633 km
    Relative Speed (km/s) 13.696 km/s
    Conjunction Risk Parameters R (Radial): 2.008 | I (In-track): 0.738 | C (Cross-track): -1.534
    Collision Risk Index (CRI) 0.39
    X Position (km) 4877.767 4875.151
    Position Y (km) -3037.117 -3037.139
    Position Z (km) -3753.674 -3753.383
    Velocity X (km/s) 1.798 2.87
    Velocity Y (km/s) 6.722 -3.171
    Velocity Z (km/s) -3.105 6.305

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-30961 UMBRA-11
    Semimajor Axis (a) 6861.190 km 6855.042 km
    Eccentricity (e) 0.000122 0.000301
    Inclination (i) 43.0029° 97.4132°
    RAAN 114.1705° 320.7242°
    Perigee Argument 259.8316° 75.9033°
    Mean Anomaly (M) 100.2398° 284.2541°
    Apogee 483.889 km 478.966 km
    Perigee 482.217 km 474.844 km
    Orbit Epoch 2026-09-04T01:05:10+0000 2026-09-03T10:31:45+0000

    STARLINK-30961 & UMBRA-11 Collision Probability (Pc) Trend

    STARLINK-30961 & UMBRA-11 Collision Probability (Pc) TrendNot Available

    STARLINK-30961 & UMBRA-11 Miss Distance (Miss Distance) Trend

    STARLINK-30961 & UMBRA-11 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-30961Miss 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-30961Collision Probability Trend

    Object 1 Probability TrendNot Available

    UMBRA-11Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-30961

    No nearby objects data