Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.490279E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T06:02:20+0800
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    1 Object 1

    AOE ID 52994
    NORAD ID 52994
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 66120
    NORAD ID 66120
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4256 STARLINK-35553
    Time of Closest Approach 2026-10-22T04:03:16+0000
    Collision Probability (Pc) 1.490279E-5
    Conjunction Distance (km) 1.026 km
    Relative Speed (km/s) 7.19 km/s
    Conjunction Risk Parameters R (Radial): 0.576 | I (In-track): -0.75 | C (Cross-track): 0.398
    Collision Risk Index (CRI) 0.58
    X Position (km) -4583.871 -4584.395
    Position Y (km) -751.813 -751.038
    Position Z (km) 5012.314 5012.735
    Velocity X (km/s) 3.696 -1.515
    Velocity Y (km/s) -6.224 -7.078
    Velocity Z (km/s) 2.44 -2.439

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4256 STARLINK-35553
    Semimajor Axis (a) 6840.867 km 6840.797 km
    Eccentricity (e) 0.000126 0.000057
    Inclination (i) 53.1597° 53.1582°
    RAAN 145.4244° 71.6258°
    Perigee Argument 84.9791° 335.4719°
    Mean Anomaly (M) 275.1356° 24.6257°
    Apogee 463.595 km 463.050 km
    Perigee 461.865 km 462.270 km
    Orbit Epoch 2026-10-20T00:10:43+0000 2026-10-20T09:21:24+0000

    STARLINK-4256 & STARLINK-35553 Collision Probability (Pc) Trend

    STARLINK-4256 & STARLINK-35553 Collision Probability (Pc) TrendNot Available

    STARLINK-4256 & STARLINK-35553 Miss Distance (Miss Distance) Trend

    STARLINK-4256 & STARLINK-35553 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4256Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35553Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4256Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35553Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4256

    No nearby objects data