Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.093267E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T05:49:52+0800
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    1 Object 1

    AOE ID 56334
    NORAD ID 56334
    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-5548 HERMES 4
    Time of Closest Approach 2026-10-20T16:25:59+0000
    Collision Probability (Pc) 2.093267E-5
    Conjunction Distance (km) 1.03 km
    Relative Speed (km/s) 11.852 km/s
    Conjunction Risk Parameters R (Radial): -0.285 | I (In-track): 0.618 | C (Cross-track): 0.774
    Collision Risk Index (CRI) 0.61
    X Position (km) -1176.345 -1176.905
    Position Y (km) 730.225 729.408
    Position Z (km) 6693.708 6693.991
    Velocity X (km/s) -2.426 7.466
    Velocity Y (km/s) 7.137 1.066
    Velocity Z (km/s) -1.202 1.193

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5548 HERMES 4
    Semimajor Axis (a) 6843.605 km 6846.114 km
    Eccentricity (e) 0.000060 0.000457
    Inclination (i) 97.2884° 97.3707°
    RAAN 287.5453° 184.4030°
    Perigee Argument 82.9780° 109.9305°
    Mean Anomaly (M) 277.1531° 250.2430°
    Apogee 465.878 km 471.107 km
    Perigee 465.058 km 464.847 km
    Orbit Epoch 2026-10-18T06:03:37+0000 2026-10-18T02:58:18+0000

    STARLINK-5548 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-5548 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-5548 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-5548 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5548Miss 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-5548Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5548

    No nearby objects data