Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.707825E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T07:08:12+0800
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    1 Object 1

    AOE ID 52999
    NORAD ID 52999
    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-4217 HERMES-3
    Time of Closest Approach 2026-09-05T03:02:18+0000
    Collision Probability (Pc) 1.707825E-6
    Conjunction Distance (km) 2.511 km
    Relative Speed (km/s) 14.305 km/s
    Conjunction Risk Parameters R (Radial): 0.664 | I (In-track): -0.847 | C (Cross-track): 2.268
    Collision Risk Index (CRI) 0.4
    X Position (km) -3918.791 -3919.257
    Position Y (km) 3571.647 3569.236
    Position Z (km) 4313.351 4313.871
    Velocity X (km/s) -6.242 4.372
    Velocity Y (km/s) -2.3 -2.273
    Velocity Z (km/s) -3.755 5.834

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4217 HERMES-3
    Semimajor Axis (a) 6840.855 km 6834.902 km
    Eccentricity (e) 0.000112 0.000500
    Inclination (i) 53.1617° 97.3733°
    RAAN 11.4825° 140.7812°
    Perigee Argument 83.1341° 190.2492°
    Mean Anomaly (M) 276.9789° 169.8651°
    Apogee 463.483 km 460.180 km
    Perigee 461.953 km 453.350 km
    Orbit Epoch 2026-09-01T15:37:53+0000 2026-09-02T04:31:43+0000

    STARLINK-4217 & HERMES-3 Collision Probability (Pc) Trend

    STARLINK-4217 & HERMES-3 Collision Probability (Pc) TrendNot Available

    STARLINK-4217 & HERMES-3 Miss Distance (Miss Distance) Trend

    STARLINK-4217 & HERMES-3 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4217Miss 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-4217Collision Probability Trend

    Object 1 Probability TrendNot Available

    HERMES-3Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4217

    No nearby objects data