Conjunction Event Detail

    Low Risk
    Low collision probability. Continue monitoring.
    1.352368E-6
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-15T22:54:23+0800
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    1 Object 1

    AOE ID 37875
    NORAD ID 37875
    Object Type PAYLOAD
    Country
    CN CN
    VS

    2 Object 2

    AOE ID 57254
    NORAD ID 57254
    Object Type PAYLOAD
    Country
    US US

    Conjunction Constraints

    Parameter YAOGAN 12 STARLINK-5490
    Time of Closest Approach 2026-09-16T19:15:42+0000
    Collision Probability (Pc) 1.352368E-6
    Conjunction Distance (km) 2.633 km
    Relative Speed (km/s) 11.017 km/s
    Conjunction Risk Parameters R (Radial): -2.429 | I (In-track): 0.697 | C (Cross-track): -0.736
    Collision Risk Index (CRI) 0.38
    X Position (km) 2579.197 2579.087
    Position Y (km) -4353.521 -4352.141
    Position Z (km) -4640.313 -4638.074
    Velocity X (km/s) 1.488 6.826
    Velocity Y (km/s) -5.019 3.312
    Velocity Z (km/s) 5.532 0.688

    Orbital Parameters 国际轨道数据源

    Parameter YAOGAN 12 STARLINK-5490
    Semimajor Axis (a) 6861.815 km 6861.175 km
    Eccentricity (e) 0.000819 0.000186
    Inclination (i) 97.1068° 43.0031°
    RAAN 292.6461° 31.3025°
    Perigee Argument 261.8760° 252.1928°
    Mean Anomaly (M) 98.1551° 107.8721°
    Apogee 489.296 km 484.316 km
    Perigee 478.060 km 481.760 km
    Orbit Epoch 2026-09-15T07:17:08+0000 2026-09-14T20:32:36+0000

    YAOGAN 12 & STARLINK-5490 Collision Probability (Pc) Trend

    YAOGAN 12 & STARLINK-5490 Collision Probability (Pc) TrendNot Available

    YAOGAN 12 & STARLINK-5490 Miss Distance (Miss Distance) Trend

    YAOGAN 12 & STARLINK-5490 Miss Distance (Miss Distance) TrendNot Available

    YAOGAN 12Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    STARLINK-5490Miss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    YAOGAN 12Collision Probability Trend

    Object 1 Probability TrendNot Available

    STARLINK-5490Collision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with YAOGAN 12

    No nearby objects data