Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.396238E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-04T16:28:46+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 53824
    NORAD ID 53824
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter GHGSAT-C4 STARLINK-4757
    Time of Closest Approach 2026-09-04T16:51:33+0000
    Collision Probability (Pc) 1.396238E-6
    Conjunction Distance (km) 2.9 km
    Relative Speed (km/s) 14.785 km/s
    Conjunction Risk Parameters R (Radial): -1.42 | I (In-track): -0.651 | C (Cross-track): 2.443
    Collision Risk Index (CRI) 0.38
    X Position (km) -5561.332 -5561.155
    Position Y (km) -3967.613 -3970.368
    Position Z (km) 274.115 273.229
    Velocity X (km/s) -0.846 2.867
    Velocity Y (km/s) 0.648 -3.582
    Velocity Z (km/s) -7.565 6.106

    Orbital Parameters 国际轨道数据源

    Parameter GHGSAT-C4 STARLINK-4757
    Semimajor Axis (a) 6838.455 km 6837.856 km
    Eccentricity (e) 0.000616 0.000096
    Inclination (i) 97.6632° 53.1588°
    RAAN 34.6880° 220.2112°
    Perigee Argument 171.4236° 92.7096°
    Mean Anomaly (M) 188.7113° 267.4017°
    Apogee 464.528 km 460.377 km
    Perigee 456.108 km 459.061 km
    Orbit Epoch 2026-09-04T05:08:17+0000 2026-09-03T08:02:24+0000

    GHGSAT-C4 & STARLINK-4757 Collision Probability (Pc) Trend

    GHGSAT-C4 & STARLINK-4757 Collision Probability (Pc) TrendNot Available

    GHGSAT-C4 & STARLINK-4757 Miss Distance (Miss Distance) Trend

    GHGSAT-C4 & STARLINK-4757 Miss Distance (Miss Distance) TrendNot Available

    GHGSAT-C4Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4757Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    GHGSAT-C4Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4757Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with GHGSAT-C4

    No nearby objects data