Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    3.197033E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T15:12:06+0800
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    1 Object 1

    AOE ID 46082
    NORAD ID 46082
    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-1578 HERMES 4
    Time of Closest Approach 2026-09-05T11:38:28+0000
    Collision Probability (Pc) 3.197033E-6
    Conjunction Distance (km) 1.908 km
    Relative Speed (km/s) 14.514 km/s
    Conjunction Risk Parameters R (Radial): 1.668 | I (In-track): 0.294 | C (Cross-track): 0.88
    Collision Risk Index (CRI) 0.45
    X Position (km) -4280.857 -4282.304
    Position Y (km) 3945.44 3945.644
    Position Z (km) 3599.609 3600.836
    Velocity X (km/s) -5.746 3.704
    Velocity Y (km/s) -2.022 -1.847
    Velocity Z (km/s) -4.602 6.412

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1578 HERMES 4
    Semimajor Axis (a) 6848.858 km 6848.295 km
    Eccentricity (e) 0.000113 0.000096
    Inclination (i) 53.1620° 97.3754°
    RAAN 356.9168° 139.9158°
    Perigee Argument 56.2623° 324.3507°
    Mean Anomaly (M) 303.8486° 35.7670°
    Apogee 471.493 km 470.817 km
    Perigee 469.949 km 469.499 km
    Orbit Epoch 2026-09-02T21:57:52+0000 2026-09-03T10:54:13+0000

    STARLINK-1578 & HERMES 4 Collision Probability (Pc) Trend

    STARLINK-1578 & HERMES 4 Collision Probability (Pc) TrendNot Available

    STARLINK-1578 & HERMES 4 Miss Distance (Miss Distance) Trend

    STARLINK-1578 & HERMES 4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1578Miss 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-1578Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES 4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1578

    No nearby objects data