Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    8.220691E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-18T04:46:13+0800
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    1 Object 1

    AOE ID 52746
    NORAD ID 52746
    Object Type PAYLOAD
    Country
    CA CA
    ← VS →

    2 Object 2

    AOE ID 53390
    NORAD ID 53390
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter GHGSAT-C4 STARLINK-4517
    Time of Closest Approach 2026-10-18T03:05:50+0000
    Collision Probability (Pc) 8.220691E-6
    Conjunction Distance (km) 1.367 km
    Relative Speed (km/s) 12.676 km/s
    Conjunction Risk Parameters R (Radial): 0.827 | I (In-track): 0.596 | C (Cross-track): 0.912
    Collision Risk Index (CRI) 0.53
    X Position (km) -34.924 -34.173
    Position Y (km) 4166.623 4165.493
    Position Z (km) -5429.619 -5429.448
    Velocity X (km/s) 1.622 -7.506
    Velocity Y (km/s) 5.911 -1.09
    Velocity Z (km/s) 4.534 -0.789

    Orbital Parameters 国际轨道数据源

    Parameter GHGSAT-C4 STARLINK-4517
    Semimajor Axis (a) 6837.031 km 6837.865 km
    Eccentricity (e) 0.000668 0.000100
    Inclination (i) 97.6694° 53.1592°
    RAAN 79.6985° 197.8285°
    Perigee Argument 41.1581° 84.6442°
    Mean Anomaly (M) 319.0165° 275.4675°
    Apogee 463.462 km 460.413 km
    Perigee 454.326 km 459.043 km
    Orbit Epoch 2026-10-17T11:41:24+0000 2026-10-17T00:57:46+0000

    GHGSAT-C4 & STARLINK-4517 Collision Probability (Pc) Trend

    GHGSAT-C4 & STARLINK-4517 Collision Probability (Pc) TrendNot Available

    GHGSAT-C4 & STARLINK-4517 Miss Distance (Miss Distance) Trend

    GHGSAT-C4 & STARLINK-4517 Miss Distance (Miss Distance) TrendNot Available

    GHGSAT-C4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4517Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    GHGSAT-C4Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4517Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with GHGSAT-C4

    No nearby objects data