Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    1.343421E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-27T20:50:12+0800
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    1 Object 1

    AOE ID 60130
    NORAD ID 60130
    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-31838 HERMES 4
    Time of Closest Approach 2026-10-28T17:38:02+0000
    Collision Probability (Pc) 1.343421E-5
    Conjunction Distance (km) 1.223 km
    Relative Speed (km/s) 14.73 km/s
    Conjunction Risk Parameters R (Radial): -0.347 | I (In-track): -0.3 | C (Cross-track): 1.133
    Collision Risk Index (CRI) 0.58
    X Position (km) 6525.904 6525.914
    Position Y (km) 1561.171 1560.063
    Position Z (km) -1384.499 -1383.982
    Velocity X (km/s) 0.094 -1.244
    Velocity Y (km/s) 4.823 -1.324
    Velocity Z (km/s) 5.911 -7.408

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31838 HERMES 4
    Semimajor Axis (a) 6848.869 km 6845.659 km
    Eccentricity (e) 0.000125 0.000481
    Inclination (i) 53.1627° 97.3715°
    RAAN 32.6706° 192.4035°
    Perigee Argument 104.5755° 93.4486°
    Mean Anomaly (M) 255.5384° 266.7306°
    Apogee 471.586 km 470.814 km
    Perigee 469.878 km 464.230 km
    Orbit Epoch 2026-10-26T12:27:18+0000 2026-10-26T03:41:48+0000

    STARLINK-31838 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-31838 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-31838 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-31838 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31838Miss 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-31838Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31838

    No nearby objects data