Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    2.503925E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T10:23:09+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 67612
    NORAD ID 67612
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HERMES 4 STARLINK-36407
    Time of Closest Approach 2026-10-22T02:42:21+0000
    Collision Probability (Pc) 2.503925E-6
    Conjunction Distance (km) 2.121 km
    Relative Speed (km/s) 15.084 km/s
    Conjunction Risk Parameters R (Radial): 0.06 | I (In-track): -0.34 | C (Cross-track): -2.092
    Collision Risk Index (CRI) 0.43
    X Position (km) -5613.605 -5613.54
    Position Y (km) -316.389 -318.508
    Position Z (km) 3899.209 3899.235
    Velocity X (km/s) 4.234 -4.366
    Velocity Y (km/s) 1.432 0.932
    Velocity Z (km/s) 6.189 -6.192

    Orbital Parameters 国际轨道数据源

    Parameter HERMES 4 STARLINK-36407
    Semimajor Axis (a) 6846.005 km 6843.651 km
    Eccentricity (e) 0.000467 0.000173
    Inclination (i) 97.3711° 97.2832°
    RAAN 186.4193° 356.2038°
    Perigee Argument 105.3853° 320.9021°
    Mean Anomaly (M) 254.7906° 39.2096°
    Apogee 471.068 km 466.698 km
    Perigee 464.668 km 464.330 km
    Orbit Epoch 2026-10-20T03:32:48+0000 2026-10-20T03:05:41+0000

    HERMES 4 & STARLINK-36407 Collision Probability (Pc) Trend

    HERMES 4 & STARLINK-36407 Collision Probability (Pc) TrendNot Available

    HERMES 4 & STARLINK-36407 Miss Distance (Miss Distance) Trend

    HERMES 4 & STARLINK-36407 Miss Distance (Miss Distance) TrendNot Available

    HERMES 4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36407Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HERMES 4Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36407Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HERMES 4

    No nearby objects data