Conjunction Event Detail

    High Risk
    High collision probability. Maneuver recommended for primary asset.
    4.372051E-4
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T07:08:12+0800
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    1 Object 1

    AOE ID 52139
    NORAD ID 52139
    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-3730 HERMES-3
    Time of Closest Approach 2026-09-04T17:36:44+0000
    Collision Probability (Pc) 4.372051E-4
    Conjunction Distance (km) 0.332 km
    Relative Speed (km/s) 14.588 km/s
    Conjunction Risk Parameters R (Radial): 0.33 | I (In-track): -0.009 | C (Cross-track): 0.039
    Collision Risk Index (CRI) 0.88
    X Position (km) -4570.101 -4569.899
    Position Y (km) 3924.594 3924.372
    Position Z (km) 3233.51 3233.367
    Velocity X (km/s) -5.4 3.443
    Velocity Y (km/s) -2.213 -1.491
    Velocity Z (km/s) -4.929 6.65

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3730 HERMES-3
    Semimajor Axis (a) 6840.885 km 6834.902 km
    Eccentricity (e) 0.000112 0.000500
    Inclination (i) 53.1616° 97.3733°
    RAAN 357.8146° 140.7812°
    Perigee Argument 90.4271° 190.2492°
    Mean Anomaly (M) 269.6861° 169.8651°
    Apogee 463.517 km 460.180 km
    Perigee 461.979 km 453.350 km
    Orbit Epoch 2026-09-01T13:57:08+0000 2026-09-02T04:31:43+0000

    STARLINK-3730 & HERMES-3 Collision Probability (Pc) Trend

    STARLINK-3730 & HERMES-3 Collision Probability (Pc) TrendNot Available

    STARLINK-3730 & HERMES-3 Miss Distance (Miss Distance) Trend

    STARLINK-3730 & HERMES-3 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3730Miss 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-3730Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES-3Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3730

    No nearby objects data