Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    6.792789E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-19T20:47:31+0800
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    1 Object 1

    AOE ID 52849
    NORAD ID 52849
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 63835
    NORAD ID 63835
    Object Type PAYLOAD
    Country
    IT IT

    Conjunction Constraints

    Parameter STARLINK-4197 HERMES-3
    Time of Closest Approach 2026-10-21T01:14:41+0000
    Collision Probability (Pc) 6.792789E-6
    Conjunction Distance (km) 1.45 km
    Relative Speed (km/s) 12.81 km/s
    Conjunction Risk Parameters R (Radial): -1.421 | I (In-track): -0.161 | C (Cross-track): 0.239
    Collision Risk Index (CRI) 0.52
    X Position (km) 4200.6 4199.886
    Position Y (km) 16.036 15.826
    Position Z (km) -5402.367 -5401.123
    Velocity X (km/s) 1.247 -5.878
    Velocity Y (km/s) 7.457 -1.615
    Velocity Z (km/s) 0.993 -4.577

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4197 HERMES-3
    Semimajor Axis (a) 6837.807 km 6829.864 km
    Eccentricity (e) 0.000110 0.000769
    Inclination (i) 53.1570° 97.3682°
    RAAN 85.7703° 187.9243°
    Perigee Argument 87.6709° 60.3114°
    Mean Anomaly (M) 272.4420° 299.8896°
    Apogee 460.421 km 456.981 km
    Perigee 458.919 km 446.473 km
    Orbit Epoch 2026-10-18T17:21:21+0000 2026-10-19T04:31:09+0000

    STARLINK-4197 & HERMES-3 Collision Probability (Pc) Trend

    STARLINK-4197 & HERMES-3 Collision Probability (Pc) TrendNot Available

    STARLINK-4197 & HERMES-3 Miss Distance (Miss Distance) Trend

    STARLINK-4197 & HERMES-3 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4197Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    HERMES-3Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4197Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES-3Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4197

    No nearby objects data