Conjunction Event Detail

    ⚠
    High Risk
    High collision probability. Maneuver recommended for primary asset.
    2.191945E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-15T09:21:16+0800
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    1 Object 1

    AOE ID 53840
    NORAD ID 53840
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63833
    NORAD ID 63833
    Object Type PAYLOAD
    Country
    IT IT

    Conjunction Constraints

    Parameter STARLINK-4766 HERMES 4
    Time of Closest Approach 2026-10-15T20:09:16+0000
    Collision Probability (Pc) 2.191945E-4
    Conjunction Distance (km) 0.485 km
    Relative Speed (km/s) 14.755 km/s
    Conjunction Risk Parameters R (Radial): 0.402 | I (In-track): -0.062 | C (Cross-track): -0.263
    Collision Risk Index (CRI) 0.82
    X Position (km) -6807.384 -6807.801
    Position Y (km) -157.677 -157.439
    Position Z (km) 736.477 736.412
    Velocity X (km/s) -0.556 0.803
    Velocity Y (km/s) -4.615 1.003
    Velocity Z (km/s) -6.054 7.521

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4766 HERMES 4
    Semimajor Axis (a) 6848.917 km 6846.365 km
    Eccentricity (e) 0.000141 0.000433
    Inclination (i) 53.1619° 97.3713°
    RAAN 13.4153° 180.4351°
    Perigee Argument 77.2361° 117.9268°
    Mean Anomaly (M) 282.8797° 242.2413°
    Apogee 471.743 km 471.192 km
    Perigee 469.817 km 465.264 km
    Orbit Epoch 2026-10-14T05:49:19+0000 2026-10-14T03:23:06+0000

    STARLINK-4766 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-4766 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-4766 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-4766 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4766Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HERMES 4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4766Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4766

    No nearby objects data