Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    1.876211E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-28T20:14:45+0800
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    1 Object 1

    AOE ID 51717
    NORAD ID 51717
    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-3445 HERMES 4
    Time of Closest Approach 2026-10-30T06:59:07+0000
    Collision Probability (Pc) 1.876211E-6
    Conjunction Distance (km) 2.369 km
    Relative Speed (km/s) 13.942 km/s
    Conjunction Risk Parameters R (Radial): -2.045 | I (In-track): 0.49 | C (Cross-track): -1.088
    Collision Risk Index (CRI) 0.4
    X Position (km) 4386.038 4384.765
    Position Y (km) 1958.034 1958.543
    Position Z (km) 4872.09 4870.159
    Velocity X (km/s) -5.243 5.457
    Velocity Y (km/s) 4.802 0.91
    Velocity Z (km/s) 2.783 -5.262

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3445 HERMES 4
    Semimajor Axis (a) 6848.856 km 6845.585 km
    Eccentricity (e) 0.000171 0.000486
    Inclination (i) 53.1614° 97.3708°
    RAAN 347.9788° 194.2248°
    Perigee Argument 72.0046° 89.5543°
    Mean Anomaly (M) 288.1142° 270.6256°
    Apogee 471.889 km 470.775 km
    Perigee 469.549 km 464.121 km
    Orbit Epoch 2026-10-27T09:48:29+0000 2026-10-27T23:34:00+0000

    STARLINK-3445 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-3445 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-3445 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-3445 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3445Miss 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-3445Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3445

    No nearby objects data