Conjunction Event Detail

    ⚠
    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    2.595625E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-13T07:43:04+0800
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    1 Object 1

    AOE ID 51746
    NORAD ID 51746
    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-3502 HERMES 4
    Time of Closest Approach 2026-10-13T10:19:50+0000
    Collision Probability (Pc) 2.595625E-5
    Conjunction Distance (km) 1.005 km
    Relative Speed (km/s) 14.18 km/s
    Conjunction Risk Parameters R (Radial): -0.487 | I (In-track): -0.337 | C (Cross-track): -0.809
    Collision Risk Index (CRI) 0.63
    X Position (km) -5072.734 -5072.579
    Position Y (km) 612.655 613.396
    Position Z (km) 4551.584 4550.924
    Velocity X (km/s) -3.744 5.132
    Velocity Y (km/s) -5.724 0.7
    Velocity Z (km/s) -3.392 5.607

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3502 HERMES 4
    Semimajor Axis (a) 6848.883 km 6846.479 km
    Eccentricity (e) 0.000108 0.000422
    Inclination (i) 53.1608° 97.3719°
    RAAN 40.2823° 178.5487°
    Perigee Argument 74.1359° 121.6322°
    Mean Anomaly (M) 285.9762° 238.5332°
    Apogee 471.490 km 471.230 km
    Perigee 470.002 km 465.454 km
    Orbit Epoch 2026-10-12T07:10:15+0000 2026-10-12T05:56:25+0000

    STARLINK-3502 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-3502 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-3502 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-3502 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3502Miss 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-3502Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3502

    No nearby objects data