Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.901354E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T19:35:30+0800
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    1 Object 1

    AOE ID 53048
    NORAD ID 53048
    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-4355 HERMES 4
    Time of Closest Approach 2026-10-29T10:27:06+0000
    Collision Probability (Pc) 1.901354E-5
    Conjunction Distance (km) 1.013 km
    Relative Speed (km/s) 9.536 km/s
    Conjunction Risk Parameters R (Radial): -1.005 | I (In-track): -0.097 | C (Cross-track): -0.067
    Collision Risk Index (CRI) 0.61
    X Position (km) 435.209 435.039
    Position Y (km) 1028.847 1028.75
    Position Z (km) 6744.06 6743.067
    Velocity X (km/s) 3.61 7.341
    Velocity Y (km/s) -6.68 1.956
    Velocity Z (km/s) 0.784 -0.77

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4355 HERMES 4
    Semimajor Axis (a) 6843.710 km 6845.659 km
    Eccentricity (e) 0.000119 0.000481
    Inclination (i) 97.2846° 97.3715°
    RAAN 115.1697° 192.4035°
    Perigee Argument 158.4488° 93.4486°
    Mean Anomaly (M) 201.6805° 266.7306°
    Apogee 466.389 km 470.814 km
    Perigee 464.757 km 464.230 km
    Orbit Epoch 2026-10-26T22:34:26+0000 2026-10-26T03:41:48+0000

    STARLINK-4355 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-4355 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-4355 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-4355 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4355Miss 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-4355Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4355

    No nearby objects data