Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.872353E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T04:44:41+0800
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    1 Object 1

    AOE ID 56340
    NORAD ID 56340
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    Name NESS
    AOE ID 58020
    NORAD ID 58020
    Object Type PAYLOAD
    Country
    FR FR

    Conjunction Constraints

    Parameter STARLINK-5540 NESS
    Time of Closest Approach 2026-10-21T16:53:58+0000
    Collision Probability (Pc) 1.872353E-6
    Conjunction Distance (km) 2.208 km
    Relative Speed (km/s) 10.909 km/s
    Conjunction Risk Parameters R (Radial): -1.713 | I (In-track): -0.974 | C (Cross-track): -0.992
    Collision Risk Index (CRI) 0.4
    X Position (km) 466.975 468.378
    Position Y (km) 1183.785 1183.55
    Position Z (km) -6732.985 -6734.672
    Velocity X (km/s) 2.835 6.97
    Velocity Y (km/s) -6.992 2.896
    Velocity Z (km/s) -1.033 0.993

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5540 NESS
    Semimajor Axis (a) 6843.704 km 6842.551 km
    Eccentricity (e) 0.000166 0.000642
    Inclination (i) 97.2846° 97.5858°
    RAAN 288.8333° 20.7711°
    Perigee Argument 91.2344° 119.0672°
    Mean Anomaly (M) 268.9090° 241.1213°
    Apogee 466.706 km 468.806 km
    Perigee 464.428 km 460.022 km
    Orbit Epoch 2026-10-19T10:30:42+0000 2026-10-18T23:30:02+0000

    STARLINK-5540 & NESS Collision Probability (Pc) Trend

    STARLINK-5540 & NESS Collision Probability (Pc) TrendNot Available

    STARLINK-5540 & NESS Miss Distance (Miss Distance) Trend

    STARLINK-5540 & NESS Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5540Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    NESSMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-5540Collision Probability Trend

    Object 1 Probability TrendNot Available

    NESSCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5540

    No nearby objects data