Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    9.779981E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-20T06:16:21+0800
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    1 Object 1

    AOE ID 63833
    NORAD ID 63833
    Object Type PAYLOAD
    Country
    IT IT
    ← VS →

    2 Object 2

    AOE ID 65539
    NORAD ID 65539
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HERMES 4 STARLINK-35110
    Time of Closest Approach 2026-10-21T20:24:04+0000
    Collision Probability (Pc) 9.779981E-6
    Conjunction Distance (km) 1.347 km
    Relative Speed (km/s) 15.113 km/s
    Conjunction Risk Parameters R (Radial): -1.333 | I (In-track): -0.019 | C (Cross-track): -0.187
    Collision Risk Index (CRI) 0.55
    X Position (km) -6117.24 -6116.031
    Position Y (km) -475.723 -475.818
    Position Z (km) 3032.18 3031.595
    Velocity X (km/s) 3.265 -3.431
    Velocity Y (km/s) 1.349 0.815
    Velocity Z (km/s) 6.768 -6.771

    Orbital Parameters 国际轨道数据源

    Parameter HERMES 4 STARLINK-35110
    Semimajor Axis (a) 6846.057 km 6843.638 km
    Eccentricity (e) 0.000462 0.000047
    Inclination (i) 97.3707° 97.2836°
    RAAN 185.4436° 358.1604°
    Perigee Argument 107.5329° 358.9590°
    Mean Anomaly (M) 252.6419° 1.1652°
    Apogee 471.086 km 465.821 km
    Perigee 464.754 km 465.181 km
    Orbit Epoch 2026-10-19T04:02:34+0000 2026-10-19T03:31:38+0000

    HERMES 4 & STARLINK-35110 Collision Probability (Pc) Trend

    HERMES 4 & STARLINK-35110 Collision Probability (Pc) TrendNot Available

    HERMES 4 & STARLINK-35110 Miss Distance (Miss Distance) Trend

    HERMES 4 & STARLINK-35110 Miss Distance (Miss Distance) TrendNot Available

    HERMES 4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35110Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HERMES 4Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35110Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HERMES 4

    No nearby objects data