Conjunction Event Detail

    Very Low Risk
    Very low collision probability. Continue monitoring.
    9.824525E-7
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T09:41:59+0800
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    1 Object 1

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

    2 Object 2

    AOE ID 66244
    NORAD ID 66244
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter HERMES-3 STARLINK-35517
    Time of Closest Approach 2026-09-06T19:25:42+0000
    Collision Probability (Pc) 9.824525E-7
    Conjunction Distance (km) 2.593 km
    Relative Speed (km/s) 6.047 km/s
    Conjunction Risk Parameters R (Radial): 0.985 | I (In-track): -2.2 | C (Cross-track): 0.954
    Collision Risk Index (CRI) 0.35
    X Position (km) -5519.4 -5519.259
    Position Y (km) 3481.76 3482.439
    Position Z (km) -2059.924 -2062.422
    Velocity X (km/s) -1.373 -4.069
    Velocity Y (km/s) 2.08 -3.106
    Velocity Z (km/s) 7.211 5.661

    Orbital Parameters 国际轨道数据源

    Parameter HERMES-3 STARLINK-35517
    Semimajor Axis (a) 6834.724 km 6840.863 km
    Eccentricity (e) 0.000531 0.000138
    Inclination (i) 97.3732° 53.1581°
    RAAN 143.2621° 170.6973°
    Perigee Argument 180.7096° 99.7336°
    Mean Anomaly (M) 179.4142° 116.0774°
    Apogee 460.215 km 463.667 km
    Perigee 452.959 km 461.785 km
    Orbit Epoch 2026-09-04T15:55:32+0000 2026-09-04T20:00:02+0000

    HERMES-3 & STARLINK-35517 Collision Probability (Pc) Trend

    HERMES-3 & STARLINK-35517 Collision Probability (Pc) TrendNot Available

    HERMES-3 & STARLINK-35517 Miss Distance (Miss Distance) Trend

    HERMES-3 & STARLINK-35517 Miss Distance (Miss Distance) TrendNot Available

    HERMES-3Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-35517Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    HERMES-3Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-35517Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with HERMES-3

    No nearby objects data