Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.478329E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-05T16:13:21+0800
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    1 Object 1

    AOE ID 53057
    NORAD ID 53057
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 58557
    NORAD ID 58557
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-4252 YAOGAN-39 05A
    Time of Closest Approach 2026-09-05T15:43:37+0000
    Collision Probability (Pc) 1.478329E-6
    Conjunction Distance (km) 2.697 km
    Relative Speed (km/s) 13.679 km/s
    Conjunction Risk Parameters R (Radial): -2.581 | I (In-track): -0.346 | C (Cross-track): -0.696
    Collision Risk Index (CRI) 0.38
    X Position (km) -3039.799 -3039.293
    Position Y (km) -5751.588 -5749.252
    Position Z (km) -2221.115 -2219.867
    Velocity X (km/s) 0.235 5.255
    Velocity Y (km/s) 2.626 -4.171
    Velocity Z (km/s) -7.143 3.613

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4252 YAOGAN-39 05A
    Semimajor Axis (a) 6871.158 km 6874.664 km
    Eccentricity (e) 0.000153 0.000597
    Inclination (i) 97.2859° 35.0020°
    RAAN 64.0091° 278.3027°
    Perigee Argument 86.4942° 303.8601°
    Mean Anomaly (M) 117.9784° 56.1546°
    Apogee 494.071 km 500.629 km
    Perigee 491.971 km 492.425 km
    Orbit Epoch 2026-09-05T00:00:02+0000 2026-09-04T13:08:00+0000

    STARLINK-4252 & YAOGAN-39 05A Collision Probability (Pc) Trend

    STARLINK-4252 & YAOGAN-39 05A Collision Probability (Pc) TrendNot Available

    STARLINK-4252 & YAOGAN-39 05A Miss Distance (Miss Distance) Trend

    STARLINK-4252 & YAOGAN-39 05A Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4252Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YAOGAN-39 05AMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4252Collision Probability Trend

    Object 1 Probability TrendNot Available

    YAOGAN-39 05ACollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4252

    No nearby objects data