Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.618643E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T05:49:50+0800
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    1 Object 1

    AOE ID 55744
    NORAD ID 55744
    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-5601 HERMES 4
    Time of Closest Approach 2026-10-20T03:02:09+0000
    Collision Probability (Pc) 1.618643E-5
    Conjunction Distance (km) 1.158 km
    Relative Speed (km/s) 14.678 km/s
    Conjunction Risk Parameters R (Radial): 0.509 | I (In-track): 0.278 | C (Cross-track): 1.003
    Collision Risk Index (CRI) 0.59
    X Position (km) 3182.064 3182.183
    Position Y (km) -431.249 -432.162
    Position Z (km) -6057.608 -6056.905
    Velocity X (km/s) 5.302 -6.691
    Velocity Y (km/s) 4.897 -1.197
    Velocity Z (km/s) 2.437 -3.433

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-5601 HERMES 4
    Semimajor Axis (a) 6853.607 km 6846.114 km
    Eccentricity (e) 0.000410 0.000457
    Inclination (i) 70.0032° 97.3707°
    RAAN 40.4835° 184.4030°
    Perigee Argument 280.4872° 109.9305°
    Mean Anomaly (M) 79.5842° 250.2430°
    Apogee 478.278 km 471.107 km
    Perigee 472.662 km 464.847 km
    Orbit Epoch 2026-10-18T07:25:00+0000 2026-10-18T02:58:18+0000

    STARLINK-5601 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-5601 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-5601 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-5601 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-5601Miss 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-5601Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-5601

    No nearby objects data