Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    2.205578E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-16T07:17:35+0800
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    1 Object 1

    AOE ID 46025
    NORAD ID 46025
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 53588
    NORAD ID 53588
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter GAOFEN 9 04 STARLINK-4691
    Time of Closest Approach 2026-09-17T01:23:33+0000
    Collision Probability (Pc) 2.205578E-6
    Conjunction Distance (km) 2.183 km
    Relative Speed (km/s) 13.699 km/s
    Conjunction Risk Parameters R (Radial): 2.167 | I (In-track): -0.11 | C (Cross-track): 0.246
    Collision Risk Index (CRI) 0.42
    X Position (km) 4204.983 4206.12
    Position Y (km) -1888 -1888.752
    Position Z (km) -5055.301 -5057.006
    Velocity X (km/s) 4.462 0.439
    Velocity Y (km/s) -3.565 7.245
    Velocity Z (km/s) 5.049 -2.342

    Orbital Parameters 国际轨道数据源

    Parameter GAOFEN 9 04 STARLINK-4691
    Semimajor Axis (a) 6827.023 km 6837.886 km
    Eccentricity (e) 0.001136 0.000135
    Inclination (i) 97.2340° 53.1613°
    RAAN 326.4089° 107.4236°
    Perigee Argument 120.7818° 85.6915°
    Mean Anomaly (M) 239.4548° 274.4242°
    Apogee 456.639 km 460.672 km
    Perigee 441.133 km 458.826 km
    Orbit Epoch 2026-09-15T15:16:24+0000 2026-09-15T13:57:02+0000

    GAOFEN 9 04 & STARLINK-4691 Collision Probability (Pc) Trend

    GAOFEN 9 04 & STARLINK-4691 Collision Probability (Pc) TrendNot Available

    GAOFEN 9 04 & STARLINK-4691 Miss Distance (Miss Distance) Trend

    GAOFEN 9 04 & STARLINK-4691 Miss Distance (Miss Distance) TrendNot Available

    GAOFEN 9 04Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-4691Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    GAOFEN 9 04Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-4691Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with GAOFEN 9 04

    No nearby objects data