Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    7.719893E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:05:21+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 2026-09-06T13:46:07+0000
    Collision Probability (Pc) 7.719893E-6
    Conjunction Distance (km) 1.242 km
    Relative Speed (km/s) 7.19 km/s
    Conjunction Risk Parameters R (Radial): -1.174 | I (In-track): 0.356 | C (Cross-track): -0.186
    Collision Risk Index (CRI) 0.53
    X Position (km) 3428.15 3427.288
    Position Y (km) 3135.835 3135.591
    Position Z (km) 5012.767 5011.907
    Velocity X (km/s) -6.497 -2.602
    Velocity Y (km/s) 3.19 6.755
    Velocity Z (km/s) 2.44 -2.44

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4256 STARLINK-35553
    Semimajor Axis (a) 6840.827 km 6840.837 km
    Eccentricity (e) 0.000083 0.000120
    Inclination (i) 53.1613° 53.1576°
    RAAN 1.9233° 293.9083°
    Perigee Argument 165.3171° 78.6893°
    Mean Anomaly (M) 194.7856° 281.4244°
    Apogee 463.256 km 463.519 km
    Perigee 462.124 km 461.881 km
    Orbit Epoch 2026-09-03T16:41:51+0000 2026-09-02T20:10:24+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