Conjunction Event Detail

    ✅
    Very Low Risk
    Very low collision probability. Continue monitoring.
    7.782431E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-21T12:06:19+0800
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    1 Object 1

    AOE ID 63243
    NORAD ID 63243
    Object Type PAYLOAD
    Country
    IT IT
    ← VS →

    2 Object 2

    AOE ID 67880
    NORAD ID 67880
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HERMES-2 STARLINK-36821
    Time of Closest Approach 2026-10-22T22:02:36+0000
    Collision Probability (Pc) 7.782431E-7
    Conjunction Distance (km) 2.799 km
    Relative Speed (km/s) 4.806 km/s
    Conjunction Risk Parameters R (Radial): 2.461 | I (In-track): 1.266 | C (Cross-track): -0.414
    Collision Risk Index (CRI) 0.33
    X Position (km) -426.991 -428.002
    Position Y (km) 814.231 813.294
    Position Z (km) 6775.233 6772.798
    Velocity X (km/s) 7.499 5.21
    Velocity Y (km/s) 1.395 5.57
    Velocity Z (km/s) 0.308 -0.339

    Orbital Parameters 国际轨道数据源

    Parameter HERMES-2 STARLINK-36821
    Semimajor Axis (a) 6847.423 km 6843.646 km
    Eccentricity (e) 0.000563 0.000147
    Inclination (i) 97.3717° 97.2849°
    RAAN 187.8178° 224.6501°
    Perigee Argument 47.4687° 109.2990°
    Mean Anomaly (M) 312.7029° 250.8411°
    Apogee 473.141 km 466.512 km
    Perigee 465.431 km 464.506 km
    Orbit Epoch 2026-10-20T11:40:10+0000 2026-10-20T06:59:58+0000

    HERMES-2 & STARLINK-36821 Collision Probability (Pc) Trend

    HERMES-2 & STARLINK-36821 Collision Probability (Pc) TrendNot Available

    HERMES-2 & STARLINK-36821 Miss Distance (Miss Distance) Trend

    HERMES-2 & STARLINK-36821 Miss Distance (Miss Distance) TrendNot Available

    HERMES-2Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-36821Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HERMES-2Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-36821Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HERMES-2

    No nearby objects data