Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    7.218763E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-17T20:59:55+0800
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    1 Object 1

    AOE ID 53474
    NORAD ID 53474
    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-4445 HERMES 4
    Time of Closest Approach 2026-10-17T14:54:38+0000
    Collision Probability (Pc) 7.218763E-6
    Conjunction Distance (km) 1.455 km
    Relative Speed (km/s) 14.226 km/s
    Conjunction Risk Parameters R (Radial): 0.093 | I (In-track): 0.534 | C (Cross-track): 1.351
    Collision Risk Index (CRI) 0.52
    X Position (km) 2193.254 2193.868
    Position Y (km) 981.411 980.096
    Position Z (km) 6400.075 6400.166
    Velocity X (km/s) -4.96 7.215
    Velocity Y (km/s) -5.239 0.169
    Velocity Z (km/s) 2.497 -2.494

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4445 HERMES 4
    Semimajor Axis (a) 6843.537 km 6846.179 km
    Eccentricity (e) 0.000113 0.000450
    Inclination (i) 97.2860° 97.3710°
    RAAN 43.1831° 183.4272°
    Perigee Argument 93.9714° 111.7723°
    Mean Anomaly (M) 266.1657° 248.3999°
    Apogee 466.172 km 471.123 km
    Perigee 464.628 km 464.961 km
    Orbit Epoch 2026-10-16T18:14:39+0000 2026-10-17T03:28:02+0000

    STARLINK-4445 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-4445 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-4445 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-4445 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4445Miss 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-4445Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4445

    No nearby objects data