Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    3.581874E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T18:26:27+0800
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    1 Object 1

    AOE ID 58685
    NORAD ID 58685
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66456
    NORAD ID 66456
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-31121 STARLINK-35643
    Time of Closest Approach 2026-10-21T08:57:19+0000
    Collision Probability (Pc) 3.581874E-4
    Conjunction Distance (km) 0.337 km
    Relative Speed (km/s) 10.015 km/s
    Conjunction Risk Parameters R (Radial): -0.327 | I (In-track): 0.063 | C (Cross-track): 0.049
    Collision Risk Index (CRI) 0.86
    X Position (km) -446.183 -446.283
    Position Y (km) -6633.425 -6633.735
    Position Z (km) 1686.141 1686.225
    Velocity X (km/s) 5.824 5.657
    Velocity Y (km/s) 0.848 -1.619
    Velocity Z (km/s) 4.853 -4.852

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31121 STARLINK-35643
    Semimajor Axis (a) 6861.189 km 6861.204 km
    Eccentricity (e) 0.000109 0.000176
    Inclination (i) 43.0010° 42.9986°
    RAAN 267.7444° 116.5168°
    Perigee Argument 273.6034° 265.7484°
    Mean Anomaly (M) 86.4694° 94.3166°
    Apogee 483.798 km 484.277 km
    Perigee 482.306 km 481.857 km
    Orbit Epoch 2026-10-18T07:06:27+0000 2026-10-18T19:03:51+0000

    STARLINK-31121 & STARLINK-35643 Collision Probability (Pc) Trend

    STARLINK-31121 & STARLINK-35643 Collision Probability (Pc) TrendNot Available

    STARLINK-31121 & STARLINK-35643 Miss Distance (Miss Distance) Trend

    STARLINK-31121 & STARLINK-35643 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31121Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35643Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-31121Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35643Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31121

    No nearby objects data