Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.7307E-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 2026-09-06T12:12:20+0000
    Collision Probability (Pc) 1.7307E-6
    Conjunction Distance (km) 2.044 km
    Relative Speed (km/s) 7.19 km/s
    Conjunction Risk Parameters R (Radial): -1.166 | I (In-track): -1.479 | C (Cross-track): 0.791
    Collision Risk Index (CRI) 0.4
    X Position (km) 3410.423 3410.979
    Position Y (km) 3154.501 3152.73
    Position Z (km) 5013.142 5012.287
    Velocity X (km/s) -6.514 -2.638
    Velocity Y (km/s) 3.155 6.742
    Velocity Z (km/s) 2.439 -2.439

    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