Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.118261E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T23:36:32+0800
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    1 Object 1

    AOE ID 53631
    NORAD ID 53631
    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-4599 HERMES-3
    Time of Closest Approach 2026-09-04T20:37:40+0000
    Collision Probability (Pc) 9.118261E-7
    Conjunction Distance (km) 2.676 km
    Relative Speed (km/s) 5.753 km/s
    Conjunction Risk Parameters R (Radial): -2.626 | I (In-track): 0.474 | C (Cross-track): -0.196
    Collision Risk Index (CRI) 0.34
    X Position (km) -5458.654 -5460.691
    Position Y (km) 4103.205 4104.904
    Position Z (km) 360.401 360.045
    Velocity X (km/s) -2.491 0.915
    Velocity Y (km/s) -3.862 0.539
    Velocity Z (km/s) 6.101 7.559

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4599 HERMES-3
    Semimajor Axis (a) 6837.844 km 6834.777 km
    Eccentricity (e) 0.000120 0.000520
    Inclination (i) 53.1607° 97.3731°
    RAAN 143.8523° 142.5439°
    Perigee Argument 92.9265° 183.6830°
    Mean Anomaly (M) 267.1875° 176.4377°
    Apogee 460.525 km 460.196 km
    Perigee 458.889 km 453.084 km
    Orbit Epoch 2026-09-04T04:59:21+0000 2026-09-03T22:43:55+0000

    STARLINK-4599 & HERMES-3 Collision Probability (Pc) Trend

    STARLINK-4599 & HERMES-3 Collision Probability (Pc) TrendNot Available

    STARLINK-4599 & HERMES-3 Miss Distance (Miss Distance) Trend

    STARLINK-4599 & HERMES-3 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4599Miss 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-4599Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES-3Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4599

    No nearby objects data