Conjunction Event Detail

    ✅
    Low Risk
    Low collision probability. Continue monitoring.
    3.990198E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-10-13T07:48:39+0800
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    1 Object 1

    AOE ID 51863
    NORAD ID 51863
    Object Type PAYLOAD
    Country
    US US
    ← VS →

    2 Object 2

    AOE ID 52746
    NORAD ID 52746
    Object Type PAYLOAD
    Country
    CA CA

    Conjunction Constraints

    Parameter STARLINK-3555 GHGSAT-C4
    Time of Closest Approach 2026-10-13T09:51:01+0000
    Collision Probability (Pc) 3.990198E-6
    Conjunction Distance (km) 1.474 km
    Relative Speed (km/s) 6.285 km/s
    Conjunction Risk Parameters R (Radial): -0.011 | I (In-track): 1.342 | C (Cross-track): -0.608
    Collision Risk Index (CRI) 0.47
    X Position (km) -1253.57 -1253.278
    Position Y (km) -6209.996 -6210.588
    Position Z (km) 2574.013 2572.696
    Velocity X (km/s) 4.409 -1.643
    Velocity Y (km/s) -3.135 -2.583
    Velocity Z (km/s) -5.392 -6.996

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-3555 GHGSAT-C4
    Semimajor Axis (a) 6840.911 km 6837.233 km
    Eccentricity (e) 0.000115 0.000700
    Inclination (i) 53.1591° 97.6686°
    RAAN 101.9334° 74.3400°
    Perigee Argument 90.0473° 57.1603°
    Mean Anomaly (M) 270.0661° 303.0313°
    Apogee 463.558 km 463.883 km
    Perigee 461.990 km 454.309 km
    Orbit Epoch 2026-10-12T05:03:09+0000 2026-10-12T08:08:42+0000

    STARLINK-3555 & GHGSAT-C4 Collision Probability (Pc) Trend

    STARLINK-3555 & GHGSAT-C4 Collision Probability (Pc) TrendNot Available

    STARLINK-3555 & GHGSAT-C4 Miss Distance (Miss Distance) Trend

    STARLINK-3555 & GHGSAT-C4 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-3555Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    GHGSAT-C4Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-3555Collision Probability Trend

    Object 1 Probability TrendNot Available

    GHGSAT-C4Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-3555

    No nearby objects data