Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.213363E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T15:52:22+0800
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    1 Object 1

    AOE ID 47793
    NORAD ID 47793
    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-2338 HERMES 4
    Time of Closest Approach 2026-09-07T13:01:05+0000
    Collision Probability (Pc) 1.213363E-5
    Conjunction Distance (km) 1.077 km
    Relative Speed (km/s) 6.797 km/s
    Conjunction Risk Parameters R (Radial): 1.053 | I (In-track): 0.206 | C (Cross-track): -0.095
    Collision Risk Index (CRI) 0.57
    X Position (km) 4473.024 4473.676
    Position Y (km) -3815.561 -3816.018
    Position Z (km) -3521.392 -3522.116
    Velocity X (km/s) 1.329 -3.685
    Velocity Y (km/s) 5.871 1.644
    Velocity Z (km/s) -4.681 -6.468

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-2338 HERMES 4
    Semimajor Axis (a) 6848.871 km 6848.257 km
    Eccentricity (e) 0.000141 0.000090
    Inclination (i) 53.1597° 97.3754°
    RAAN 124.8894° 140.8915°
    Perigee Argument 94.1481° 314.0717°
    Mean Anomaly (M) 265.9681° 46.0451°
    Apogee 471.700 km 470.737 km
    Perigee 469.768 km 469.503 km
    Orbit Epoch 2026-09-04T22:59:17+0000 2026-09-04T10:25:09+0000

    STARLINK-2338 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-2338 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-2338 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-2338 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-2338Miss 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-2338Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-2338

    No nearby objects data