Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.157021E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-13T22:02:27+0800
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    1 Object 1

    AOE ID 60127
    NORAD ID 60127
    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-31840 HERMES 4
    Time of Closest Approach 2026-10-13T15:04:46+0000
    Collision Probability (Pc) 2.157021E-5
    Conjunction Distance (km) 1.006 km
    Relative Speed (km/s) 10.991 km/s
    Conjunction Risk Parameters R (Radial): -0.663 | I (In-track): -0.529 | C (Cross-track): -0.538
    Collision Risk Index (CRI) 0.62
    X Position (km) -4107.188 -4107.204
    Position Y (km) 707.215 707.651
    Position Z (km) 5424.948 5424.042
    Velocity X (km/s) -0.231 6.111
    Velocity Y (km/s) -7.588 0.579
    Velocity Z (km/s) 0.812 4.538

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-31840 HERMES 4
    Semimajor Axis (a) 6848.921 km 6846.423 km
    Eccentricity (e) 0.000130 0.000426
    Inclination (i) 53.1609° 97.3717°
    RAAN 96.2571° 179.4596°
    Perigee Argument 82.3496° 120.0253°
    Mean Anomaly (M) 277.7652° 240.1412°
    Apogee 471.671 km 471.201 km
    Perigee 469.897 km 465.371 km
    Orbit Epoch 2026-10-12T21:29:43+0000 2026-10-13T03:52:45+0000

    STARLINK-31840 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-31840 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-31840 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-31840 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-31840Miss 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-31840Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-31840

    No nearby objects data