Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    5.503283E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-25T09:48:55+0800
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    1 Object 1

    AOE ID 53537
    NORAD ID 53537
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 59939
    NORAD ID 59939
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter STARLINK-4120 STARLINK-31955
    Time of Closest Approach 2026-10-25T10:00:07+0000
    Collision Probability (Pc) 5.503283E-7
    Conjunction Distance (km) 2.415 km
    Relative Speed (km/s) 1.542 km/s
    Conjunction Risk Parameters R (Radial): 1.919 | I (In-track): -1.458 | C (Cross-track): 0.155
    Collision Risk Index (CRI) 0.3
    X Position (km) 42.158 43.221
    Position Y (km) 6396.162 6397.585
    Position Z (km) -2435.438 -2437.074
    Velocity X (km/s) -4.881 -5.961
    Velocity Y (km/s) 2.111 1.733
    Velocity Z (km/s) 5.474 4.441

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4120 STARLINK-31955
    Semimajor Axis (a) 6840.875 km 6847.834 km
    Eccentricity (e) 0.000128 0.000738
    Inclination (i) 53.1610° 43.0015°
    RAAN 111.9725° 122.6089°
    Perigee Argument 75.9870° 268.7304°
    Mean Anomaly (M) 284.1275° 91.2705°
    Apogee 463.616 km 474.749 km
    Perigee 461.860 km 464.645 km
    Orbit Epoch 2026-10-24T04:24:53+0000 2026-10-23T20:35:17+0000

    STARLINK-4120 & STARLINK-31955 Collision Probability (Pc) Trend

    STARLINK-4120 & STARLINK-31955 Collision Probability (Pc) TrendNot Available

    STARLINK-4120 & STARLINK-31955 Miss Distance (Miss Distance) Trend

    STARLINK-4120 & STARLINK-31955 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4120Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-31955Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4120Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-31955Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4120

    No nearby objects data