Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    9.527038E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-13T22:46:16+0800
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    1 Object 1

    AOE ID 45754
    NORAD ID 45754
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 59557
    NORAD ID 59557
    Object Type PAYLOAD
    Country
    CN CN

    Conjunction Constraints

    Parameter STARLINK-1477 YAOGAN-42 02
    Time of Closest Approach 2026-09-15T09:43:24+0000
    Collision Probability (Pc) 9.527038E-6
    Conjunction Distance (km) 0.945 km
    Relative Speed (km/s) 2.394 km/s
    Conjunction Risk Parameters R (Radial): -0.834 | I (In-track): -0.435 | C (Cross-track): 0.065
    Collision Risk Index (CRI) 0.55
    X Position (km) -2742.169 -2742.202
    Position Y (km) -6291.982 -6292.86
    Position Z (km) -354.635 -354.98
    Velocity X (km/s) 4.327 5.818
    Velocity Y (km/s) -1.552 -2.29
    Velocity Z (km/s) -6.076 -4.354

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-1477 YAOGAN-42 02
    Semimajor Axis (a) 6873.199 km 6874.646 km
    Eccentricity (e) 0.000263 0.000556
    Inclination (i) 53.0233° 34.9997°
    RAAN 75.8772° 77.6818°
    Perigee Argument 133.3059° 248.7420°
    Mean Anomaly (M) 226.8157° 111.2702°
    Apogee 496.872 km 500.330 km
    Perigee 493.252 km 492.688 km
    Orbit Epoch 2026-09-12T21:05:54+0000 2026-09-12T22:42:31+0000

    STARLINK-1477 & YAOGAN-42 02 Collision Probability (Pc) Trend

    STARLINK-1477 & YAOGAN-42 02 Collision Probability (Pc) TrendNot Available

    STARLINK-1477 & YAOGAN-42 02 Miss Distance (Miss Distance) Trend

    STARLINK-1477 & YAOGAN-42 02 Miss Distance (Miss Distance) TrendNot Available

    STARLINK-1477Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    YAOGAN-42 02Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-1477Collision Probability Trend

    Object 1 Probability TrendNot Available

    YAOGAN-42 02Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-1477

    No nearby objects data